How to seal MDF for a gloss finish

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Want the sealer? Get it through my affiliate link on amazon: amzn.to/2CxVOmr
Hey guys! I’m Brad, and I make how-to videos. I do custom painting projects, guitar painting, airbrushing, spray can painting, wood working, and a variety of other finishing work and tutorials. Please subscribe and check out my channel for more!
MDF can be one of the most difficult materials to finish. The problem is that it absorbs paint and other finishing products that you put on it, and it can swell or end up with a very rough, dry finish.
In this video we discuss how to seal it so that you can paint it easily like any other product.
Mohawk website: www.mohawkconsumerproducts.com
Behlen website: www.hbehlen.com
Their youtube: / mohawkfinish
Their Facebook: MohawkConsum...
@mohawkconsumer on instagram
Don't forget to ask your questions in the comment section.
Thanks for watching.
To get in touch with me with your questions, photos, etc. use the links below!
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Опубликовано:

7 авг 2024

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Комментарии : 612

@BradAngove 4 года назад

Heads up guys, the behlen sealer has been re-branded under Mohawk. You can find it through here: www.amazon.com/shop/bradangove

@rocifier 3 года назад

It says the product is unavailable. What other products could I use?

@BradAngove 3 года назад

You can find it through Mohawks consumer products website instead I believe.

@daciasdiy1861 3 года назад

@@BradAngove hey what’s the wedsite to the Mohawk site i really want this

@BradAngove 3 года назад

If you go through the link I posted and look up Mohawk consumer products it should be there

@DRV_Woodworks Год назад

I've used Zinsser B I N shellac based sealer from spray can and seals nice with one coat. 2 coats even better. Sand between coats then top coat sand and repeat. Tried it today and pretty great results with very little effort. Much easier then regular primer which soaks in like a sponge.

@mr.joshua8664 7 лет назад

This helped a lot. Especially on the sanding part. I am a complete amateur at this and am wanting to work on my skills of finishing with my props using MDF.

@BradAngove 7 лет назад

Glad to hear that you found it useful.

@richardkunicki5684 6 лет назад

I used this material purchased in a quart can from Klingspore ($16.99). I used 2 coats sanding in between as shown in the video, on raised panels. I did buy a respirator because the stuff is nasty. China bristle brush. Works great, very easy. Thanks for sharing this process

@BradAngove 6 лет назад

+Richard Kunicki I’m glad it worked for you. Thanks for watching.

@18deadmonkeys 5 лет назад

I built ten 31" x 96" workbenches with MDF about 15 years ago. Used oil stain and polyurethane to finish the tops. Went through GALLONS of polyu. Those surfaces are almost hard as stone though. Still look amazing.

@BradAngove 5 лет назад

You basically impregnated them with polyurethane then haha. That’s awesome.

@sherryleggett1612 Год назад

Wow, I would love to see your workshop with all those great worksurfaces

@willbrink 2 месяца назад

Looking to paint some MDF speaker cabinets and that will be useful info. Thanx.

@ovais909 7 лет назад

I always used to use body filler but this method looks easy and less messy body filler is really hard to work with , so thanks

@BradAngove 7 лет назад

You're welcome. I've done it with wood filler and body filler, but I personally prefer just using the vinyl sealer.

@mpikas 7 лет назад

Kilz works on MDF that will be painted with latex paint, but not under finer finishes. I used some MDF window trim moldings that I had to cut down and modify to fit the space between windows and this worked great. MDF also machines really well so it's nice to make custom parts out of. I've had really good luck using cheap automotive spray primer in a can to seal it up. Cheaper stuff dries faster (about like what you did with the vinyl sealer) and you can often get it for ~$4/can

@BradAngove 7 лет назад

I used to use the cheap spray primer for my machined MDF parts. The filler primer gets the job done pretty quick. So does a good lacquer sanding sealer if you're doing a bunch of them, but it doesn't build as quickly as the vinyl.

@nassirirani6569 5 лет назад

Thanks, Brad I enjoy your vids becoz very smooth and clear explanation also you are like my favourite character Christian bale that I love him very much so please take care of your self with wearing a mask, buddy

@bfjohnmark 4 года назад

Young batman

@sam-ms4hl 4 года назад

great info budey thank you. helps a lot

@chrisgraham2904 4 года назад

Sanding between coats of clear primer isn't really necessary as long as each coat is smooth and without runs or blemishes. The previous coat is dry to the touch, but is in no way a cured finish. As long as the previous finish has not been left to cure, the next coat should bond very, very well. Always make sure the sealer coats and the finish coats are the same chemical composition -- enamel over enamel, lacquer over lacquer ... etc.

@KilkennyLights 3 года назад

Thanks for your help. Perfect instructor

@patrickmcmahon8218 4 года назад

3lb cut white (clear) shellac works as a great paint sealer on MDF and Plywood.

@duartepaintinghandymanservices 7 лет назад

I do alot of painting specially on mdf doors, baseboad and crown and i always find that 2 coats 20min apart of kilz original does a very good job on sealing the mdf, I comeback and lightly sand with 220 and than i apply 2 coats of semi gloss and it comes out great

@BradAngove 7 лет назад

I'm glad to hear that works well for you. I haven't had much luck with the kilz personally. Maybe I'll have to give it another try.

@superhall229 6 лет назад

Very true. Some people make a mountain out of a mole hill.

@CGT80 5 лет назад

The key is the oil based primer. I always use zinsser products and have used hundreds of gallons of zinsser cover stain, both oil and water based, maybe even thousands, as a pro painter. The oil based primer seals without swelling the wood and it sands easily to a smooth finish. Oil primer is also key for sealing peeling paint and bad drywall or plaster. When finishing cabinets made from mdf, we also used a lacquer white undercoater taht worked well, but with epa and environmental restrictions, products have changed quickly over the years. In 6 months to a year, a product may not be available or could be quite different, so never assume you are using the same stuff you bought a couple years earlier, even if it is the same label.

@edwaggonersr.7446 6 лет назад

Good information, thanks for posting the video.

@BradAngove 6 лет назад

+Ed Waggoner Sr. Thanks for watching.

@chuckrupert1213 3 года назад

I have no doubt this would be an excellent finish, but it seems like there are many others that use products that you can buy at the big box stores or even at Walmart. Excellent vid.

@BradAngove 3 года назад

Cheers Chuck

@jacobbrown1690 4 года назад

i make high end art decco furniture with mdf/ hdf and use water based high particulate primer. takes 30 minutes to dry. sand then add another coat. protects the mdf from water absorbsion. Then add colour coats and clear coats. you can use all water based paints. There some great acrilic warer based paints and clear coats. i spray the water based clear coats for smoothness.

@blifamansmith3320 7 лет назад

Thank you for sharing. Looked very nice.

@BradAngove 7 лет назад

Thank you for watching. I'm glad you like it.

@rupert274 5 лет назад

What paint was used in the piece on the video thumbnail?

@uBmaniac 6 лет назад

Just passing by to say I have subscribed because of your consistent effort to reply to as many comments as possible. Even the stupid ones which don't deserve a reply and even a few repeated ones which the questioner could have easily scrolled down to see. It baffles me.

@BradAngove 6 лет назад

Welcome aboard. I appreciate most of the questions haha. Most of them...

@valveman12 5 лет назад

Hey, thanks, Brad. I learned something very useful today/

@BradAngove 5 лет назад

Glad you found it helpful.

@cyberspooky 7 лет назад

Best MDF sealer is ceiling white with PVA mixed in , I use 3.5 ltr ceiling white with 500ml PVA , works awesome and cheap 😎

@Kept_Crude 6 лет назад

Hello Cyberspooky! Which type of PVA exactly do you recommend? PVA Building Adhesive, or PVA Admix Building Adhesive or any other? Please!!

@1invag 5 лет назад

I've heard using PVA glue can leave a tacky finish, particularly if you use a water based paint anywhere in the process

@alexcastillo1384 5 лет назад

Drywall sealer pva?

@FreqBand 4 года назад

PVA is not easily sandable. Plus using any waterbase on MDF edges, can make them swell. Solvent-based sealers are a better option. Or just seal with shellac.... a few coats.

@bradleysmith681 4 года назад

Thank you! Just what I needed..

@kimberleerivera7062 6 лет назад

Thank you so much for sharing! I had no idea! I will be painting some mdf for the first time and this was excellent timing!

@BradAngove 6 лет назад

Excellent. I’m glad you found it helpful. Don’t forget to wear a mask.

@GreatWhiteNiko 6 лет назад

Solvent based alkyd primer - instant dry. (Maybe 60 seconds.) No need to sand edges of sculpted grooves - piles up thick and hides all imperfections, sticking fibers, etc ( (acts like a primer-filler). One fat coat. Accepts any top coat. $40 per gallon.

@BradAngove 6 лет назад

+GreatWhiteNiko Sure.

@raj102945 6 лет назад

Thinned water based varnish, two coats. Sanded between coats. 5 coats of water based varnish sanded between coats. Iron on edge veneer, also varnished with several top coats. This gives a really good wood effect that most would never believe cheap mdf is capable of. This video is really useful to learn other methods.

@lyn1130 6 лет назад

Thanks for the video. I am actually trying to renew my old kitchen cabinet, do you think using your method in this video is appropriate for renewing the kitchen cabinet?

@BradAngove 6 лет назад

As long as you’re not actually painting it in the kitchen you can use this to seal it. I’m assuming it’s MDF of course.

@JW-mx3qg 6 лет назад

Just ordered 4 cans. What product do you recommend to keep a nice clear glossy finish ( using to seal a jobsite work table)

@BradAngove 6 лет назад

Catalyzed polyurethane is probably your best bet. Or an enamel with a hardener.

@Cesarmx14 7 лет назад

You can try solvent base acrilic filler for the edges, it dries fast and is easy to sand, usually a small amount will be needed to seal the edges, for primer I use 2 part polyurethane, sand the mdf with 240 grit sandpaper, apply first coat, sand with 240 grit, apply second coat, sand with 320 grit, apply a 3rd light coat, sand with 400 grit and you are ready for topcoat, it works for me, hope it helps, greetings from México!

@BradAngove 7 лет назад

Yes, that sounds like it would work well. I'm looking for methods that are quicker and take fewer steps, but I would imagine if you do 3-4 coats before even beginning your top coat it probably looks great.

@nopt1118 4 года назад

Brilliant presentation; thank you for your time. I’m building a 4m fitted mdf wardrobe and your video couldn’t be more informative. Ps; mind your health though, every minuscule of these chemicals we breathe does no good...

@BradAngove 4 года назад

Thanks. I’m glad you found the video helpful.

@Raul28153 6 лет назад

I use sheet rock mudding compound, works great.

@sasa1982uk 5 лет назад

Is that jointing compound for tape and jointing?

@markf.4063 5 лет назад

I use spackle.

@scottgeorge4760 5 лет назад

The company I work for pulls a laminate of various color over M.D.F., a wood wrap . why paint or stain M.D.F. but have it wrapped/foiled in a nylon covering .

@tranzco1173 4 года назад

Because we don't work for a company with those resources. Ettore Sotsass designed furniture in the 1980's using the process you describe, and they sell for 30k plus. My dining table is a 1968 Knoll Saarinan, and is laminate over birch ply (with exposed birch ply edging). Good laminate is really expensive, MDF is relatively cheap.

@peterotremba8980 5 лет назад

Thank you so much for making the video, you cleared a lot of stuff for me up but I have some questions. Can I use polyurethane over the paint and do I have to sand the paint a little before applying the poly? And does it matter if it is water based or oil based?

@BradAngove 5 лет назад

Yes you can. Yes you should. No it doesn’t (once the mdf is sealed).

@peterotremba8980 5 лет назад

Brad Angove Thanks

@Kyle7K 5 лет назад

I like to use just a good thick, high build polyester primer. Eastwood makes a great rattle can version. Great fill, build and leveling, easy to sand, but takes longer to try.

@BradAngove 5 лет назад

Polyester is a reasonable choice for sure.

@EPICSOUNDTRAX 4 года назад

Hi Brad I am going to paint MDF room walls.I want to have flat or mate finish.The paint is water-based.Should I use some type of primer to seal the MDF or it will be fine?I do not want the MDF to swell.

@BradAngove 4 года назад

You should consider using a fast drying sealer to begin with.

@kentklapstein9879 5 лет назад

I have had great result using oil based Varathane. I let the MDF absorb as much as it likes, it takes in a lot. This also seems to strengthen/harden the MDF.

@BradAngove 5 лет назад

Yes, that can definitely work. It just takes much longer.

@MrStreetboy80 5 лет назад

Coolest person Iv seen using a spray can and still makes it look cool when you almost knock It over 😂 I want to vinyl wrap some plywood for a project. I know it’s not going to stick very well. Any advice on that?

@BradAngove 5 лет назад

The smoother the surface is, the better it will stick. Depending on what grade of plywood you got, if you grain fill and add a couple layers of sealer you can probably get it to stick reasonably well.

@DJAdelaar 6 лет назад

Hi, nice video! I work on a project where I wanna leave MDF with its original feel but still protects it from water and moisture. I don't wanna color it at the end. Is there any way to seal MDF so to say invisibly, that the feeling of raw MDF stays? Tnx for the answer!

@BradAngove 6 лет назад

That’s an interesting concept. Honestly, I can’t thing of a way that you would do that. Any clear coat you put on it would smooth it out at least a little bit. The closest thing would be just putting a few coats of matte clear on it.

@Jmyers0915 2 года назад

Brad, awesome video. Is there a way to stain the MDF before glossing it? I tried staining last week and it didn't work out very well. Thanks.

@BradAngove 2 года назад

Mdf isn’t really meant to be stained. It doesn’t have grain. It also expands with moisture. I’ve sprayed alcohol based stain on it before and gotten an interesting effect though.

@charlesbarry9194 6 лет назад

Good video! After the sealant is dry and sanded I noticed you didn’t use a primer, is primer not needed? Also I build stuff with mdf/wood together would I follow the same steps? T.I.A!

@BradAngove 6 лет назад

The sealer fills the role that primer would generally be used for, so there’s no need for both. Yes; it works just as well on wood.

@nitrousman8882 2 года назад

great video! Thanks for sharing this. I have a speaker that is piano black with huge gouge in the surface.... almost like screws were put into it and the bottom was pulled free.... I'm filling with epoxy resin. Do you think that I need to prime first?

@BradAngove 2 года назад

Just seal it a bit first, even if it’s just with a thin coat of epoxy. Otherwise you can get air bubbles forming in the epoxy.

@tleon858 4 года назад

I usually read the comments to see other helpful tidbits. This is the first time I've seen soo much attention paid to the host's looks. Just to stay in-line with the others, I did find the shirt to be fairly well pressed and nice looking.

@BradAngove 4 года назад

Hahahaha thank you for the feedback.

@BYGTraining 3 года назад

Would this be a good way to stop the butt ends of a 2x4 from soaking up so much paint? I build slideboards and the bumpers are made from two feet long 2x4 segments.

@BradAngove 3 года назад

Yes, this would be helpful for that as well.

@andres.giacomini 4 года назад

Hello, I paint in MDF with PU paint (monocomponent), this polyurethane is normally applied with a base coat, called "Primer" (like cars), or primer that watching your video would be basically the same, and I tell you more, with 3 hands of first the edges are already well sealed with their respective sanding between hand and hand. The process is the same as car painting. So in my case if you want a good high gloss finish, I recommend a PRIMER, or base paint (not sealer).

@jojiran Год назад

I dont know if you are European . For some reason this is not done in the US but what you suggested is the best method . I use gray PU sealer

@andres.giacomini Год назад

@@jojiran I'm not from Argentina. If a one-component base works perfectly, several coats and sandpaper between each coat to smooth and leave a surface as smooth as possible.

@jojiran Год назад

@@andres.giacomini Are you using oil PU or water based?

@firecloud77 6 лет назад

That sand paper looks like it has about a 1/4-inch foam backing. I've never seen anything like that in the stores. Where did you purchase it?

@BradAngove 6 лет назад

I picked it up at a paint shop. You should be able to find it on amazon under “paint pads”. I believe it’s also available in the amazon link that I include in the description of my newer videos.

@SimpleChic23 5 лет назад

Hi Brad, Thank you for sharing your knowledge about MDF. I just started my new job as an designer at a German luxury kitchen and home living cabinetry. I am excited about learning more about the different materials we use for our selections of doors. I would love for you to make a video over the differences between mdf, furniture board. What is melamine, laminate,lacquer and what is foil coating?? Thank you!! And I am a new subscriber 😁

@BradAngove 5 лет назад

I’ll see if I can pull some information together on that. Melamine is just laminated particle board essentially. MDF is basically pressed sawdust and wood glue. I’m not sure what you mean by furniture board. OSB?

@griftopherhitchens9926 4 года назад

I wish I had watched this before my first attempt. I'm getting weird craters on the face surface. Great video - I use Minwax wood filler (Bondo Style with Catalyst) on the edges.

@BradAngove 4 года назад

Must have just not filled a few spots quite right. Try going over it with a thin layer of normal wood filler and sanding back.

@jackloganbill605 3 года назад

Great video. Any advice for signs made from MDF? It is a real pain to seal and sand the edges of each letter...face no problem, but getting inside and between the letters is a real pain...

@BradAngove 3 года назад

You may be able to get away with simply adding more of the sealer, but usually when I do those lettered signs I just have to spend a bit of extra time sanding those tough areas. The really tough areas are tough to see anyway, so you may not need to be quite as careful in those spots.

@hizkia704 6 лет назад

Thank you very much

@mrmeboxbuilder2710 7 лет назад

Hi Brad. im from the uk and amazon dont stock this it seems (out of stock and dont know when its back in.) can you tell me is this sealer shellac based as in sand and sealer. As ive used this but not in an aerosol based?

@BradAngove 7 лет назад

It's not shellac based from what I understand.

@ronaldsonjocson9973 6 лет назад

nice tip..can you named what brand of mdf sealer spray youve used?!..tnx...

@BradAngove 6 лет назад

Behlen

@cmr2079 6 лет назад

nice video thanks

@BradAngove 6 лет назад

Thanks for watching.

@fiver-hoo 4 года назад

Shellac also works amazing.

@thethoughtmaster 5 лет назад

I have another technique, same problem though, you could try buffing it.

@keshkeshbeh 5 лет назад

Can you please give me the name of the sealer you applied and the same for the enamel red paint you used to finish the job

@BradAngove 5 лет назад

Behlen’s vinyl sealer. Available through the amazon link in the description. The red is Rustoleum painters touch gloss.

@LockStoppageSandwich 3 года назад

Thanks Brad..............Will it take water based gloss finnish ?

@BradAngove 3 года назад

The vinyl sealer? I’m not really sure. That’s not what it’s designed to work with, but water based finishes aren’t particularly volatile so it might be ok.

@jackiemcdonaldmansfield9000 5 лет назад

Hi thanks for the video. I was told by cabinet maker that I would need to sale and paint both sides and top and bottom of mdf to stop warping what do you think.

@jackiemcdonaldmansfield9000 5 лет назад

I am pour painting on the mdf

@BradAngove 5 лет назад

If it’s water based then yes, he’s right.

@qwertandrew8720 3 года назад

Hi Brad. I've been working on a project and I get stuck. I've been painting an MDF it has primered (oil based) and started to spraying by Rustoleum gloss acrylic lacquer. this is an aerosol btw. I do not like it whereas I id like to achieve a piano finish. What paint do you recommend over this acrylic lacquer? I was thinking using a sher-wood CAB also acrylic one but I dunno is it compatible with it or not? what do you think and what is your suggestion? I am ok with an Acrylic Enamel 2x what you used in this video ...? Thank you

@BradAngove 3 года назад

You can use the 2x over that. Are you looking for full gloss?

@Pal.Cockrum 5 лет назад

You can get primers specifically made for mdf or simply use mdf edging tape.

@jessicajuneward7665 3 года назад

I wish I’d watched this video before I did all my panelling.. any advice on MDF panelling that’s been painted in durable emulsion but I now need it wipeable and waterproof but not glossy?

@BradAngove 3 года назад

I don’t know what kind of material the durable emulsion is. Matte catalyzed polyurethane comes to mind though for a finish that meets those criteria.

@tayley284 4 года назад

How moisture resistant would you say it becomes? I been looking for a definitave explination on how i can make standard mdf able to be used outside (undercover and wont get directly hit by any rain, but will have decent amount of moisture)... Someone please give me some tips👍👍

@BradAngove 4 года назад

You just need to seal it from all sides. The vinyl sealer is moisture resistant, and so are most clear coats. If you build up a gloss finish you should be good.

@madonnahagedorn5649 3 года назад

I simply want to seal some fiberboard that go on a storage rack. Can I leave it just sealed without painting it next?

@BradAngove 3 года назад

Sure. No really reason not to.

@dnsbb8033 6 лет назад

Old vid but good vid thanks brad

@brettus9115 5 лет назад

Thinned polyurethane glue works excellent. Just keep brushing it on the edges until it stops soaking it up and leave to dry. Especially for mirror finishes but it's to much work for my hidden speakers!

@sticky59 3 года назад

Very good tip ...... like 'sizing' a newly plastered wall so it doesn't suck the guts out of the paint when applied. Seals it up and you are good to go.

@saffadave 5 лет назад

how about a normal wood sealer the same as it you was going to varnish wood would this work with paint spay from a can

@BradAngove 5 лет назад

It would work. It would just take a bit longer.

@kizaplays3563 6 лет назад

I’m hopefully going to be doing this to a lot of mdf. Is using an electric sander going to work just as well?

@BradAngove 6 лет назад

Yes, as long as you get relatively fine paper for it.

@kizaplays3563 6 лет назад

Brad Angove thanks a bunch mate.

@BradAngove 6 лет назад

You’re welcome.

@WeBuild4Life 6 лет назад

What if I'm using wood glue/wood filler over seams and edges (what would u suggest??) to get a perfect finish. The sealer could still be sprayed and then a primer? Or would I even need to seal it if I've already done wood glue/filler. Also I'm going to use a black acrylic lacquer buffed to a mirror shine by the end of it. I assume I'll then do a high gloss clear coat. Do you have any suggestions as far as primer/brands to use as well as sanding between coats? Thanks!

@BradAngove 6 лет назад

+WeBuild4Life yes, you can still seal over that. It's a good idea to use that on the seams etc. Generally there's no need for primer over the sealer. Once the thing is sealed well and sanded smooth, there's no real need to sand between coats of lacquer.

@WeBuild4Life 6 лет назад

Brad Angove thank you much! Been doing a lot of research and your video is one of the most helpful I've been able to find.

@BradAngove 6 лет назад

+WeBuild4Life I'm glad to hear it. Thanks for watching.

@HaulywoodReviews 6 лет назад

Thank you for posting this. I was trying to figure out how to seal MDF for a project I'm working on. Can you tell me why you turn the can upside down for a second when you are done spraying? I have never seen anyone do that, and it looks like you know what you are doing, so I thought I would ask. Thank you.

@BradAngove 6 лет назад

Certainly. I made a video about it titled something along the lines of one tip that will make your spray cans perform better. There are a few types of nozzle for spray cans. These small ones, which are fairly common, only spray properly when they’re right-side-up. When you spray, paint can stay in the tube and jam it up. You flip it upside down and spray until material stops flowing (because it can’t pull material when upside down) and only gas is coming through to clear the nozzle so that it won’t jam up or spit.

@HaulywoodReviews 6 лет назад

That's a great tip. Thank you for your reply.

@BradAngove 6 лет назад

Your welcome. Thanks for watching.

@fotfoti 7 лет назад

Hi there, very nice video. I have a question tho about painting a furniture which consists of many different MDF parts. Lets say a bookcase. Which is the correct order? First assemble the furniture and then the whole primer-sanding-painting process ?or all pieces must be primer-sanded first , then assembled and then paint the whole thing? Thanks in advance :)

@BradAngove 7 лет назад

+fotfoti It really is just a matter of preference. I like to paint the parts first so that I don't have to worry about causing runs by spraying into corners etc.

@fotfoti 7 лет назад

thanks :)

@BradAngove 7 лет назад

+fotfoti you're welcome.

@adamrybka790 5 лет назад

Sorry but I disagree with previous reply. When you spray finish furniture you need spray dissembled otherwise you will have overspray on some places. Specially when you finish in high gloss.

@garymarrs2270 5 лет назад

Dynaglas body filler sand flat then rustoleum primer sealer. done

@moves81 5 лет назад

Hello - How does the behlen brush on product behave for a gloss finish? I am looking to finish 2 subwoofer cabinets and would probably need at least a few cans. I think the paint on would be more cost effective. Then, I may spray the cabinets with some rustoleum product. Do you have any feedback on this? Thanks!

@BradAngove 5 лет назад

The stuff in the quart is great. I use it all the time. I’ve never tried brushing it though, I just spray it through the gun.

@moves81 5 лет назад

I don't have a sprayer so thats not an option for me.

@BradAngove 5 лет назад

I figured that was the case. Just wanted to let you know that I hadn’t tried brushing it

@beastman.330 3 года назад

Can you wrap mdf with carbon fibre sheets. (ROCKET BUNNY) rear spoiler.

@BradAngove 3 года назад

I would think so. Or fiber glass.

@ericjones2644 7 лет назад

I ordered a can of what you used off Amazon last week and had poor results. Even after 5 coats of the sealer on the edges (along with sanding with 400grt) the edges were still "furry". What am i doing wrong? I want the sides to be as smooth as the top without furr

@BradAngove 7 лет назад

Try sanding the edges flat again with 320 or 400 grit and then adding one more coat of the sealer.

@frenchgirlsplantworkshop8502 7 лет назад

Hi Brad. Thanks for your educational videos. I am a real beginner in woodworking. My first project will be a coffee table made of crates and it requires a square piece of wood at the bottom where the crates will be screwed on. I decided to go with MDF because real wood was too expensive at my Home Depot. The coffee table will not be in damp/humid room obviously but I am scared of water/beverage spillage that could ruin the MDF base. I am looking for a non-toxic MDF sealant (I have an adventurous toddler). What do think of simply applying one or two coats of basic wood glue?

@BradAngove 7 лет назад

You can dilute some water-based wood glue in order to create something that will act as a filler/sealer, and then sand it flat. You will likely want to apply something on top of that to make it more water-proof though. Perhaps you may want to consider a water-based polyurethane to finish it off. Alternatively, you can glue on a thin veneer if you can find one for a decent price, and then you can actually coat that in a food safe oil if your toddler is going to be chewing on it.

@frenchgirlsplantworkshop8502 7 лет назад

+Brad Angove I like the idea of a thin veneer. I have already splurged on a beautiful oak veneer as a table top for this project and the sales associate at Home Depot sold me an entire sheet although I needed a 26 in. square, so I have lots of "scrap". I was almost desperate to the point of covering my MDF base with vinyl contact paper lol. Thank you so much for taking the time to answer my question.

@BradAngove 7 лет назад

Glad to help out. So, you can cut the appropriate sizes of veneer (go a little oversized and just trim after), glue them on under pressure for 24 hours, and then you can finish the whole thing in mineral oil if you want. That's what we use to oil cutting board. You can drink it (it acts as a natural laxative), so it's probably the safest finish I can think of if you're worried that you child might go looking for something to chew on.

@frenchgirlsplantworkshop8502 7 лет назад

Double-duty :-) I can ask her to go chew on the coffee table on the days she is bound up LOL. More seriously, I was thinking of glueing the veneer, then screwing in the corners and finally covering those corners with childproofing angle covers, for safety and aesthetic purpose in order to conceal the screws.

@BradAngove 7 лет назад

Sounds like a plan.

@hobohacker258 5 лет назад

Great video. He reminds me of Charlie Day, even in delivery and mannerisms.

@andrewhenryloh 5 лет назад

Got any advice for touching up chips on high gloss white on mdf?

@BradAngove 5 лет назад

What kind of paint is it?

@samgreer8596 6 лет назад

Fantastic video. How would you achieve a black piano gloss finish on an MDF project? What steps / finishes would you use? This video really saved me big time from probably some disasterous results on an MDF project. After the sealing would you use a 1 stage or 2 stage finish? Is there a comparable product to the Leyland Trade acrylic primer undercoat here in the US? Would you use a PVA glue, the vinyl sealer, or an acrylic primer undercoat for a large job? I wish someone would make a vid or series of vids from beginning to end for finishing wood (MDF) Some have sealing, spraying color, or sanding, clearing, sanding, buffing, but never seen the entire process in a video or series of videos. Anyway, thanks for saving me from making a big finishing mistake by not sealing.

@BradAngove 6 лет назад

+Sam Greer I don't know what leyland trade acrylic primer undercoat is. If I were doing a piano finish on here I would probably use lacquer. I would either start with vinyl sealer or lacquer sanding sealer, then black lacquer, then satin lacquer clear. Once the MDF is sealed, it's just like finishing any other surface. The absorbent aspect of it is dealt with at that point.

@samgreer8596 6 лет назад

Then that is what I'll do! Thank you. This is my first attempt at this, so do you have a recommendation on the number of color coats / clear coats?

@BradAngove 6 лет назад

+Sam Greer you just need enough colour to get the opacity you're looking for. Probably 3-4. I'd go with more like 8 clear coats so you can sand and polish if you need to. Lacquer goes on thin.

@loskop100 6 лет назад

+Sam Greer. I have tried to do a piano finish on MDF a couple of times using acrylic lacquer: six coats of shellac on the edges then a coat of sanding sealer all over. The paint looked fine but when I went to buff it after flatting it with 1500 I think that the heat produced by the buff caused the MDF to sort of delaminate, the surface looked a bit like an ocean swell. In the end I just flatted it with 1200 and sprayed thinner with retarder onto it then squeegeed it with window cleaner followed by a thin coat of colour and hand rubbed it with Farecla 10. Took ages and won't ever do it again on anything larger than a match box.

@spuds6423 6 лет назад

I had some MDF plinths that were in my bathroom. I thought the paint+primer would be sufficient but water got to them and they soaked them up. Will this method help me avoid that?

@BradAngove 6 лет назад

It should if you seal them fully. Finishing them off with some kind of clear coat after should also assist with that.

@spuds6423 6 лет назад

Brad Angove Thanks!!!

@BradAngove 6 лет назад

You’re welcome.

@bp7770 5 лет назад

Sand edges and face with 180 . 2 coats of binz shellac based primer. with a 220 grit scuff in between. Done

@mikeleahy5283 5 лет назад

What i use

@UberAlphaSirus 5 лет назад

Barry Penta- Is that zinser bin?

@browntrout3994 5 лет назад

thx....got a mdf project on the TO DO list right now.

@UberAlphaSirus 5 лет назад

@@browntrout3994 A little tip for you, the factory edges are tempting to use as a face because they are straight and factory. but they are softer, less dense, have voids and suck paint like a pro. 1/4 inch from the factory edges are sollid. whatever the edge on mdf, long drying time oil based primers wick in and will take 8 times longer to dry so recoating is an endless pain. shelac like zinzer bin drys quick, anything that dries quick but isn't water based is best. Or pay morefor water resistant mdf, the green stuff, you can use anything waterbased.

@lauraleamarlyn323 3 года назад

What is vinyl sealant used for besides this?

@BradAngove 3 года назад

I use it for essentially anything I’m doing a lacquer finish on.

@siharande7804 6 лет назад

Can I do color spray painting the surface?

@BradAngove 6 лет назад

As opposed to what?

@vanaranimoodley8955 4 года назад

Very simple to do ordinary wood filler made into a paste and brushed onto the edges wipe off with a cloth wait until dry then sand with fine sandpaper very light sanding then paint the filler will prevent absorbition

@lemsdarkapprentice2535 6 лет назад

Hi Brad, fantastic video! I have MDF kitchen countertops and I would like to paint them (probably copper paint) and give them a hardwearing high gloss finish so that the paint doesn't come off. Can you suggest anything to use? Will spray-on varnish work? Or do I need something stronger like yacht varnish applied by a brush, or epoxy? [el'sda2]

@BradAngove 6 лет назад

I would suggest that you use an epoxy for that. It’s a fairly common option for that sort of finish if I’m not mistaken.

@lemsdarkapprentice2535 6 лет назад

thanks. never used it before, do you have any recommendations for which ones to try? [el'sda2].

@BradAngove 6 лет назад

You need a finishing resin. Unfortunately it’s not really my area of expertise. Consider getting in touch with the guys at Black Forest Wood Company. They might be able to help.

@lemsdarkapprentice2535 6 лет назад

loads of thanks, will do [el'sda2]

@tony221984inmonroe 7 лет назад

A thin layer of fiberglass resin then sand and paint

@BradAngove 7 лет назад

I hate fibreglass resin, but that does sound like it would work well.

@scottwallace4928 6 лет назад

This is what I have done when working with MDF in car audio for 25 years. More work but seals and smooths wonderfully.

@BradAngove 6 лет назад

Yeah, it seems like an effective option if not an efficient one.

@lungthumpa 7 лет назад

My recipe for high gloss MDF finish is 3 coats of undiluted PVA, sand with 400-600 grit between coats, works everytime.

@BradAngove 7 лет назад

I think a lot of people are using PVA for it now actually.

@leawofford8495 4 года назад

So what if I want to stain the MDF? Would I use the same sealer?

@BradAngove 4 года назад

I suppose you could.

@rezo786 4 года назад

The red you used. Was it primer and paint in one ?

@BradAngove 4 года назад

No, just paint. I try to avoid that primer plus paint crap.

@nadiasosa5242 6 лет назад

This may be a silly question, but would you reccomend using this process, for kitchen cabinet mdf doors? I have been trying to find a simple way to acheive a high gloss finish, your video was the simplest I've watched. Any particular tips you may suggest?

@BradAngove 6 лет назад

It should work fine on those. If you’re doing a whole bunch of them it may be worthwhile to get a large nozzle spray gun and the non spray can version of this product. You can follow the same process.

@nadiasosa5242 6 лет назад

Brad Angove ok will do. Thank you!

@BradAngove 6 лет назад

You’re welcome.

@devanbogan954 6 лет назад

I'm assuming you've experimented with the product in quarts at this time. have you tried rolling it on? since you're basically wanting a thick coat and sanding down anyways, in my opinion, you could probably roll it on to get a thicker coat of the non-rattle can without a spray gun.

@BradAngove 6 лет назад

Yes, I gave it a try. It works ok, but as with most products that dry this fast, the roller tends to leave a fairly textured finish.

@Marzen216 5 лет назад

Could I use Zinser Bin shellac based sealer underneath Duplicolor acrylic lacquer? A rattle can of vinyl sealer lacquer runs about $25 and the Zinser is only $10. I have two large mdf Marty subs to finish for my home theater and my kid is building one your guitar kits so I need a lot of coverage w/o breaking the bank. Thanks, we've gotten a lot out of your channel!

@BradAngove 5 лет назад

It may take a couple extra coats, but yes that should work.

@gebrilsamuelbastiaan2280 6 лет назад

Hi, awesome video! explained in cleary and concise. Is this for all kinds of finish or just gloss finish?

@BradAngove 6 лет назад

I would apply the same sealing technique for any finish.

@MoOdaso 5 лет назад

Hey Brad.. you should've made a clean up using air blow or wipe before each coat for a good bond of the next coat

@BradAngove 5 лет назад

To put it bluntly, not I should not have. If anything, waiting a few hours and sanding lightly with 329!grit would have been the ideal option for that purpose.

@damnitdang 2 года назад

I need to cover a 11cf HT subwoofer enclosure

@MWSRD 5 лет назад

For a budget try water based polymer wood glue and dilute with water 1:1 fast curing, sanding between every stage 1 coat. And then any acrylic primer or clear 1 coat it will be "sealed" then at least 2 coats of color and possibly 2 coats of clear gloss to finish build it up D4 wood glue is one solution. Formaldehyde gas will still escape from MDF for upto 6 months after it was cut...... soooo not too good! just a thought.

@jeffbeck6501 3 года назад

Try to do that spraying outdoors.

@LynnLaceyLLWW 6 лет назад

I have found simple shellac seals MDF quite satisfactory. Dries fast no over spray fumes to breath

@BradAngove 6 лет назад

I've tried shellac a few times and found it to be incredibly slow. Perhaps we are approaching it differently?

@BradAngove 6 лет назад

+Jerk Of All Trades words to live/die by haha.

@scrapper666 6 лет назад

It's "breathe"; a breath is what you breathe.

@scrapper666 6 лет назад

Shellac dries incredibly quickly unless it's past its best-by date (which should be printed somewhere on the can), and then it can just stay tacky forever.

@BradAngove 6 лет назад

Shellac takes about 45 minutes dry fully. Not bad, but not as fast as the vinyl sealer. That’s not the issue though. The problem is that it takes a long time to seal the MDF because of how many coats are required.

@gajewel58 Год назад

Hello Brad, I am a new subscriber and I'm hoping you can answer a question for me. I am working on a DIY project, a door hanger with MDF board. I have watched this video and another one of yours, but I didn't quite get an answer. I'm slightly confused. I plan on staining it with a gel stain. My confusion is whether I seal it first and then stain it or stain then seal. I know that MDF is very porous, especially the edges. I also want to ask if Mod Podge can be used to seal it or should I use polyurethane. I purchased Rust-Oleum Painter's Touch 2X Ultra Cover clear gloss spray. Is that a good sealer? I'm sorry for so many questions, but I chose a DIY that I really have no knowledge of, but I am determined to do it because it is going to be a birthday present for my sister. Any help, info, or answers you could give me would truly be appreciated! Thank you in advance! 🙂

@BradAngove Год назад

Hi there. Have you ever tried staining mdf? It doesn’t have grain, so the effect is different than with wood. Anyway, I would stain first and then seal. Mod podge isn’t really designed to be painted over if I’m not mistaken, so you could probably seal with that but wouldn’t want to clear coat over it. The rustoleum would work, but it will soak in so you may need quite a bit.

@gajewel58 Год назад

@@BradAngove thank you so much for replying. So, you don't think the MDF will absorb too much stain and warp if I don't seal it first? I'm sorry for so many questions. I appreciate your time and help.

@BradAngove Год назад

It is very unlikely that it would absorb that much gel stain.

@gajewel58 Год назад

@@BradAngove ok, thanks so much!

@myz98f150 7 лет назад

Mdf mdx is awesome Regular mdf seal the edges with a mixture of yellow glue n water than some vinyl sealer sand it apply color top coat it done

@BradAngove 7 лет назад

+Z Lopez what do you typically use to apply the mixture?

@myz98f150 7 лет назад

Brad Angove mdf edge

@myz98f150 7 лет назад

Brad Angove mdf edge with a spray gun ,n spray on the face too

@maddire2585 2 года назад

Hi, will this method work to make a bath panel with gloss finish?

@BradAngove 2 года назад

I’m not sure what a bath panel is.

@maddire2585 2 года назад

@@BradAngove sorry im not sure what its called in the US. Its the panel that goes around the outside of a bath to hide plumbing. Usually its plastic but the bath I have is an unusual size so wanted to make my own cut and finish

@BradAngove 2 года назад

Sounds like you could potentially use this method for that, but you would have to be extremely carefully about fully sealing it. Mdf swells badly when it gets wet. Btw, I’m not American.

@maddire2585 2 года назад

@@BradAngoveok thanks for replying. I’m not good with accents. I can see you are a Canadian. Apologies :)

@FreqBand 4 года назад

Good tutorial. Can I add a few tips ? -- For small pieces like yours, wear a glove and hold the piece in your hand.....and just spray the sides, heavily, several times....until it nearly stops soaking-in. Let dry. It will prob need at least two coats. -- MDF can be very brittle on the hard/sharp edges.I always lightly hit the edges with 220 grit paper, by hand, so there are no sharp edges.. This makes it more durable in the end (less accidental chipping). -- My favorite way to seal the porous edges, is to skim them with automotive polyester filler (Bondo) , then sand. But don't sand through to the MDF, otherwise you are back to where you started. (Skim again if this happens.). Then spray with an automotive "sandable primer"....and carefully sand it smooth with 220 grit or finer.