The Ultimate Guide to Fluid Film Undercoating (NHOU)

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In this video, I'll be showing the process that I use to undercoat a vehicle. If you happen to live in a region with harsh winters and salty roads it is absolutely crucial that you get your vehicles undercoated to protect them from rust and corrosion.
Why you shouldn't use rubberized undercoating (Ziebart) - • Rubberized Undercoatin...
Big thanks to Eric O. over at the South Main Auto channel for making such a great video on why you shouldn't use rubberized undercoating on your vehicle. ‪@SouthMainAuto‬
Please leave any comments or questions down below!

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1 сен 2023

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Комментарии : 137

@SouthMainAuto 11 месяцев назад

Love me a good Fluid Film video 😁

@bradsbuilds 11 месяцев назад

Thank you Mr. O! I get a lot of inspiration from your channel. Thanks for watching!

@northerntoyota7584 9 месяцев назад

I used rust check coat and protect with similar wands. Have a 360 tip on a 42” hose. Good for entire inner of boxed frame where access holes are limited towards the rear. The inner rocker panels are hard to access behind the now plastic outer rockers. I was able to get 90 degree wand in seem and fog this area that’s prone to rust. Good work

@samuelguinta8190 6 месяцев назад

Great Job

@madcowusa4277 10 месяцев назад

Just did the frame of my 41 year old Chevy C10 truck. It looks great a few days later. Ordering more cans.

@bradsbuilds 10 месяцев назад

That's great! I love the old Chevy pickups. Thank you for watching

@davidf9027 5 месяцев назад

As you said, it’s critical to get under the spare. Before you even said that, I was wondering why you didn’t drop the spare first, spray under and reinstall. That’s what I do, and I would hope everyone does.

@k9feces 11 месяцев назад

That angles tip is great

@bradsbuilds 11 месяцев назад

Yes sir! Thank you for watching!

@Pendragon501 6 месяцев назад

I just bought a new vehicle yesterday and I'm planning on doing the whole vehicle in fluid film before I drive it anywhere. I don't have a lift so I'll be doing it via jack stands. I bought 2 gallons of Fluid Film Black, the WoolWax pro series spray gun kit with all attachments, plastic to put on the floor, tape and plastic to cover thew sides, tyvek suit to protect me... I'm not looking forward to this. I also bought the best ceramic coat I could get my hands on for the outside. This thing better last me forever!

@tomstarcevich1147 9 месяцев назад

Love fluid film and PB blaster surface shield 🛡 both are great products i did my 2021ram1500 the first month i got it no rust for me nice vid 😀 👍

@bradsbuilds 9 месяцев назад

They're both great products! Thanks for watching!

@Aerospacer77 8 месяцев назад

Did you use aerosol cans ? I just bought the same two products in aerosol cans. Today I prepped. Tomorrow I spray.

@Swindy1794 9 месяцев назад

My local mechanic has clear or black fluid film, I like the black. I live in Pennsylvania so undercoating is very important, my 2019 Tundra still looks like brand new underneath. 👌👍

@bradsbuilds 9 месяцев назад

Very glad to hear that! It really is a great product. Thank you for watching!

@northerntoyota7584 9 месяцев назад

Do you find the stuff with the black dye dries out over time? The pro form undercoating in black use to dry out, but not the amber

@Swindy1794 8 месяцев назад

@@northerntoyota7584 …. I haven’t noticed any difference between the two… i have it sprayed every fall (Octoberish) and it continues to build up, thicker and thicker with every application. I used to own a 2006 Tacoma and it was completely wasted rotted out underneath. (I never had it sprayed) I had no idea there was a problem until my mechanic showed me. For me at the time Toyota had a recall for that mess and i had it fixed for free…. Still traded it in for my Tundra, i’m not going through that again.

@chrisE815 8 месяцев назад

Can't believe he even offered the black tint. I can see using a little bit on a rusty diff or something but that shit makes a total mess when you go to work on the car.

@josephpuchel6497 10 месяцев назад

Hey great job Tundra Dude34 would be proud of you.

@bradsbuilds 10 месяцев назад

Thank you! Thanks for watching!

@iTsGamerZ 6 месяцев назад

ive tried both fluid film and pb blasters surface shield and i like surface shield the most because fluid film comes off once you powerwash it where as surface shield is like hydrophobic and doesnt wash off and sticks really well

@amacd08 2 месяца назад

I had my 2013 Accord done with Krown the first year (because they drill holes) and Fluid Film every year since. The only issues I’ve had is the car is very messy to work on and the trunk lid drains got plugged from so much undercoating and trunk lid was holding water. Other than that I’ve seen vehicles newer than mine needing rocker panels and other body work where mine just shows a little rust along the rear dog legs. Great stuff!

@dylanbrown3840 9 месяцев назад

Have you noticed any problems with it on rubber and or plastic parts? Also very good hob i do my tacoma every year myself with cans. It probably isnt as good as taking it to a pro like you but its something i want my kids to have my truck and i live in nw Pennsylvania

@VinylTherapy 7 месяцев назад

On the fence about getting my 4Runner done, my only concern is that I read this stuff is hard on any rubber boots, bushings, electrical connectors, etc.

@waynebinky 10 месяцев назад

What's your take on the metal in the fender wells that hides behind factory sound proofing material? It is removable, but not easily. Do you spray in behind this or just let it be? Worried the fabric will become saturated and fail.

@bradsbuilds 10 месяцев назад

I'm not exactly sure what you're referring to. The sound deadening material that I'm familiar with inside of fender wells is usually a fabric pillow that is just held in with friction. I've also seen plastic wrapped foam material that seals the fender to door gap internally. Either way, both can be moved out of the way if necessary when removing fender liners. The fluid film shouldn't bother them. I know I certainly haven't worked on every car out there so I may have never witnessed exactly what you're dealing with, but I hope my response helps regardless. Best of luck and thanks for watching!

@mikemckenzie3634 9 месяцев назад

Great video, can you send a link as to where you get your equipment and which brands of equipment you recommend?

@bradsbuilds 9 месяцев назад

www.lemmer.com/ The gun that I use is pretty good but quite pricey. A Kellsport Products/Woolwax gun works well and is much less expensive. There are many options on eBay or Amazon that will get the job done. Thank you for watching!

@Sampsonay 8 месяцев назад

Do you think fluid film will still do a good job without removing the bottom covers? I dont have a lift so working under my car is a bit difficult. I still was sure to spray all of the visible parts of the frame and suspension and also inside any drain holes in my Civic.

@bradsbuilds 8 месяцев назад

In my opinion having something is better than nothing at all. That definitely isn't the most thorough approach, but considering your situation I think you absolutely did the right thing. Thanks for watching!

@leardi58 7 месяцев назад

I wish I had a lift makes it so much easier thanks for sharing what spray gun you like best

@bradsbuilds 7 месяцев назад

Thank you for watching!

@jon8625 7 дней назад

super video--thanks so much!I am going to give this a try at home. What do you avoid besides brakes and exhaust? Lower engine and oil pan ok to spray? Last question: Do you ever remove the hood insulation for access?

@bradsbuilds 7 дней назад

@@jon8625 thank you! I'm glad you enjoyed it! Lower engine and oil pan should be just fine to spray, but will get quite warm. Very possible to burn off like the exhaust. Generally, removing the hood insulation isn't necessary because there are so many access holes around the perimeter of the hood. It certainly wouldn't hurt though! Best of luck

@jon8625 7 дней назад

thanks! Should be fun!

@richscott2952 5 месяцев назад

Can it hit the muffler, catalytic converter electrical connections

@Maab32 27 дней назад

So i coated my truck 3 days ago. Today i noticed my brake making a slight hissing noise when pressed. Coincidence, or did i end up spraying something rubber that i shouldnt have? Could this stuff ruin a rubber seal?

@josephmckinnon3546 10 месяцев назад

Hello Brad, I'm buying a new 2023 Kia Rio and I live in the salt belt, (Michigan), and I'm wondering what I should do since the car is straight out of the factory. Should I do multiple coatings, black paint, clear coatings underneath the car since the car is brand new? Or should I just stick with fluid film. I want to reapply it every year or so to ensure it doesn't rust, just don't know what I should do for a new car.

@bradsbuilds 10 месяцев назад

Hi! I'm my experience, being as thorough as you can with fluid film or other types of oil based undercoating is your best bet. Taking your time and being thorough will make a big difference over just generally spraying the underside. Relatively inexpensive FF sprayguns can be purchased online. If you don't have access to a compressor, you can get a case of aerosol cans and purchase wand extensions for the tips to reach into the cavities. Depending on how harsh your winters are, you could always reapply after 6 months instead of a year. Be sure to be as thorough with the body cavities (quarter panels, fenders, rockers, door bottoms, etc.) as you are with the underside. Thank you for watching!

@Aerospacer77 8 месяцев назад

Where are you located? I live in Chicago and cant believe I couldnt find anyone out here that uses fluid film or surface sheild. Im actually going to do it myself with aerosol cans. Wouldnt mind paying someone to do it right like you with a car lift and an air compressor and spray gun. I have a brand new Tacoma. Thanks

@Jojo-ni2cg 8 месяцев назад

Ive used the fluid film and its decent, but i found that waxoyl is a superior product and the cost is around the same

@engrxtn 9 месяцев назад

Bought a new car and decided to do fluid film. Bought a woolwax pro gun. Hopefully it goes well. Will be doing my other two cars that I have never coated. I just need the weather to cooperate 😂

@bradsbuilds 9 месяцев назад

Anything is better than nothing at all! It's great you're doing it. I hope it goes well. Thank you for watching!

@MrLoudog7 5 месяцев назад

How did it turn out?

@engrxtn 5 месяцев назад

@@MrLoudog7it was super easy and it looks great. I only did the new car because it was already cold. I’ll be doing the other car in spring. I regret not this before.

@Santiago-je5ki 9 месяцев назад

How did you get the fluid film to atomize so well? When i applied it it came out in clumps, and i did stir it up. Did you warm it up?

@bradsbuilds 9 месяцев назад

Nope I didn't warm it up, it was at room temperature. I think it has to do with the type of gun I'm spraying it out of. If your sprayer has an adjustable fan and fluid setting I'd play with it to see if you could get it to atomize better. Thanks for watching!

@alexl1820 11 месяцев назад

Nice work man!! What is your recommendation of a car that is older like 10-15 years and already started to rust? I live in Sweden and over here they throw salt on the roads to keep the roads icefree. Finaly most cars gives up because of all the rust 😔

@bradsbuilds 11 месяцев назад

Thank you! This procedure is universal for any vehicle! As long as you can encapsulate the metal/existing rust you can stop the corrosion from starting/getting worse. Just make sure you remove any flaking rust/debris before application. Do you see lots of Volvo's out in your neck of the woods? 🇸🇪 Thank you for watching!

@alexl1820 11 месяцев назад

Okej thanks, i will try to undercoat my cars as soon as possible. I have a Mazda 6 (2014) and a Nissan x-Trail (Rogue) (2008) They are getting older but still not too much rust, just on surface. Yes here you can se Volvos everywhere. Its like the most popular car and its used by the police and as ambulance to. The v70 and xc70 (cross country) can be seen everywhere. Sadly they are discontinued right now. Think Volvo stopped the making of pure petrol and diesels. Its all hybrid and electric now....

@bradsbuilds 11 месяцев назад

Best of luck to you! Nice rides! It's a shame Volvo has switched over to all hybrids and EV's. They built such great inline 5s and 6s.

@craigiefconcert6493 8 месяцев назад

Just to mention, there may be a lot of rust that you can’t see. That’s why they spray inside frame and body cavities. Concentrate on those and also on the brake lines.

@Andrew-on5do 9 месяцев назад

Does this stuff get all over your hands if you need to work on something or collect more gunk on gravel roads since it’s always wet?

@bradsbuilds 9 месяцев назад

Yes it can be messy. The dust and silt from the roads will stick to it and create a film on the outside. In my opinion, dealing with the fluid film residue is much better than dealing with broken bolts and flaking rust. Thank you for watching!

@riceburner4747 10 месяцев назад

I own a 2019 Prius & has many panels. Do u remove them? I'd like to see u do annuals & what u look for. I can tell you're very thorough. Gave u a 👍'd & sub'd.

@bradsbuilds 10 месяцев назад

Yes. Any panels that would prevent me from doing a thorough job get removed. Smaller uni-side vehicles usually require the removal of wheels and wheel skirts to coat the structure underneath. I appreciate the compliment! I try my best. I'll try to make a follow up video next year! Thank you for the like and sub!

@WilliamVG 9 месяцев назад

Can you lets us know what psi your were running on the wand with Fluid film? Thanks.

@bradsbuilds 9 месяцев назад

I run anywhere from 60 to 80 psi.

@LulaPlays 8 месяцев назад

the most important question...why aren't you using surface shield? so much better and lasts longer.

@jerrydrosell 10 месяцев назад

What size air tip do you spray with your Binks gun? Have you ever mixed in linseed oil with the fluid fil? A lot of people I know do this but I am curious about the benefits of mixing in the linseed oil with ff instead of straight ff?

@bradsbuilds 10 месяцев назад

The gun is set up with a 63PB air tip and a 63B fluid nozzle. No, I've never mixed linseed oil with my fluid film. As a standalone product I think the consistency is quite good and I'm happy with the performance. Maybe people mix it in to thin the fluid film? I'm not quite sure. Thank you for watching!

@jerrydrosell 10 месяцев назад

Thanks for the reply. Just to clarify the tip you referenced is comparable to a 1.2mm tip?

@bradsbuilds 10 месяцев назад

I believe so yes.

@shaftwood 8 месяцев назад

Fluid Film can be thinned by mixing in a very small amount of vegetable oil. I do that when it's really cold, to make the Fluid Film a little easier to spray. I haven't noticed that thinning it makes it last any less time on the undercarriage, either. Thinned or not, it lasts a winter, for me.

@jvel719 Месяц назад

Are there parts not to spray??

@adammcinnes5615 Месяц назад

I read somewhere that someone mixed a Glade air freshener into their 1 gal can of Fluid Film, so instead of smelling of lanolin, their vehicle smelled like apple cinnamon. I wonder if you could get a similar result by mixing in a bottle or two of essential oils.

@rickfrancis5480 10 месяцев назад

Where do u get the angle wand

@bradsbuilds 10 месяцев назад

www.lemmer.com/store/p121/Air_Extension_wand_90%C2%B0_hook.html

@adamcoe 9 месяцев назад

Not trying to tell you what to do but to anyone attempting this: sweet jesus please wear a respirator WITH an appropriate filter if you're spraying this stuff. It's designed to to stick to steel for months in freezing cold temps. Just think of what even a *tiny* amount of this is doing to your lungs.

@whatitisnt. 7 месяцев назад

True although it's lanolin based (sheep). It's not necessarily toxic

@macfady2181 7 месяцев назад

That's some sound logic right there...

@yoho1021 6 месяцев назад

Fluid film is good grade

@richscott2952 5 месяцев назад

Asbestos is natural

@topperharley9182 5 месяцев назад

@@yoho1021you meant Food Grade

@Bryce_2118 10 месяцев назад

I am looking to get nhou for my 18 silverado do you know if that takes the factory wax off the frame like fluid film does?

@bradsbuilds 10 месяцев назад

That's a good question. Personally I haven't had compatibility issues between FF and factory GM wax frame coatings. I'm not sure how the mouse out would act with it. It's specifically formulated to be applied to vehicles so I'd imagine it would be okay. Wouldn't hurt to contact NHOU themselves about the concern. I'm sure they'd be able to provide a lot more information. Thank you for watching

@williamlocascio8946 10 месяцев назад

Are you near Chicago? Do you offer this service if so?

@bradsbuilds 10 месяцев назад

@@williamlocascio8946 Unfortunately no, I'm over 10 hours away. Thank you for watching though!

@brkbtjunkie 9 месяцев назад

How does this hold up when going through a car wash that has undercarriage spray?

@bradsbuilds 9 месяцев назад

The pressure deteriorates the product more than the water does in my findings. I would try to avoid undercarriage washes if possible. Thanks for watching!

@MrLoudog7 5 месяцев назад

I worry about it getting on brake rotors. Any issues?

@bradsbuilds 5 месяцев назад

Obviously you don't want to target the rotors by any means, but any light over spray on the rotors burns up after a few miles of driving. Thanks for watching

@Nat-kl9mt 8 месяцев назад

Can I keep it like that without washing underneath? How many years until I reapply again?

@bradsbuilds 8 месяцев назад

I try to avoid undercarriage washes. I recommend yearly reapplications but it depends on your driving habits and vehicle.

@chrisallen3741 8 месяцев назад

What is the name of the wand you are using

@chrisallen3741 8 месяцев назад

Where did you buy it from

@derv39 9 месяцев назад

I have the identical Binks gun mine would not spray the fluid film just air

@bradsbuilds 9 месяцев назад

It took me quite a while to get the air/pressure/fluid settings right. Maybe there's another issue with your gun? Thanks for watching

@Tyler-ug1hs 9 месяцев назад

NHOU didnt sell you on the BossWax undercoating? Why did you choose fluid film instead?

@bradsbuilds 9 месяцев назад

I do not work for NHOU. I use MouseOut because I like the idea and added functionality of the product. I've had personal experience with fluid film in the past and I'm happy with the results. Thanks for watching.

@AdkinsDebtDiet 7 месяцев назад

Why not remove the spare tire to have better access where you say it is especially important to treat?

@steve8803 Месяц назад

No need to disassemble and take off wheels, that's just not cost effect. Just need to drill access holes, then plug them. I know people don't like the sounds of that, but there are holes all over the vehicle anyway. A few more to allow quick access to coat critical areas isn't going to harm anything.

@terryburke2587 7 месяцев назад

I'm surprised you didn't wash the under carriage before applying product.

@jerryhaveman5659 8 месяцев назад

why do you use the regular FF vs FF Black?

@bradsbuilds 8 месяцев назад

I personally don't care for the all black undercarriage look.

@TJ-qz6hr 7 месяцев назад

I think the black FF looks awesome.

@carlmcdonald5864 6 месяцев назад

Good work but for a new truck or car CRC 6026 HD rust inhibitor is a better option

@chiefjoseph8154 7 месяцев назад

My only concern is everything sticks to it, pine needles, leaves, dirt etc.

@marcustang-wr4bh 6 месяцев назад

very good job, funny thing is you did not cover the nose but everything else

@sethholsopple3802 8 месяцев назад

Fluid film does a great job but I don’t like there hose kit for airosaw cans half the material sprays out on you I thought I got a bad one I ordered two more no better. Has anyone else had the same problem thanks?

@stevereid2760 8 месяцев назад

Drill a small hole into the spray nozzle of the tip that came with the can. Heat up the tip that attaches to the hose and force it into the hole you drilled. I did this and it works amazingly! Not one drop wasted. Wish I could attach a pic for you, but hope you can figure out what I’m saying. Good luck!

@thomasmeyer5004 9 месяцев назад

Where is your shop located?

@bradsbuilds 9 месяцев назад

South of Rochester NY

@weloveups831 8 месяцев назад

Drop the spare and spray the top of those wheels. Thatbis where they really rust.

@gravelstorm1 9 месяцев назад

I have harsh winters and salty roads here in New York State. Will you Fluid Film my new truck?

@Leon-qc7fe 8 месяцев назад

I bought the Fluid Film spray kit with two plastic hoses that attach to the sprayer. The sprayer is great. Not so much the hose attachments. The hoses are made of thick stiff plastic and will not flex well enough to do inside frames, doors, hoods. When you bend the hose it collapses and blocks the flow. I found it really a useless, messy, waste of time. It is really disappointing that they make a wonderful product and screw you with a substandard applicator.

@timovilkki5209 11 месяцев назад

Respirator?

@steinbauge4591 11 месяцев назад

I use FF on my car with similar equipment, have not felt the need to do this yet. Isn't it just a filter mask though? I would use one working with this all day. maybe the anti rodent stuff should not be inhaled

@bradsbuilds 11 месяцев назад

It wouldn't hurt to wear a mask when spraying. However, both products are non toxic and I haven't had any negative side effects from either. I keep the area well ventilated with open overhead doors and an exhaust fan. My goal down the road is to invest in a full face shield/respirator combo so I can do away with some of the individual headgear. Thank you for watching!

@johnnyringo9759 7 месяцев назад

Looks nice, but it must take all day to apply!!!

@bradsbuilds 7 месяцев назад

Yes it does take a while. A full size pickup usually takes me about 3 hours. I'm very thorough with the application. Thanks for watching

@thecount1001 10 месяцев назад

too bad there isn't just a FF pool you could drive the truck into and have it towed out after a good long soak.

@bradsbuilds 10 месяцев назад

I can't even begin to tell you how many times I've wished that was a thing!!! That would certainly take any question out of coverage haha.

@myriadcorp 9 месяцев назад

Looks like your lungs got a coat of fluid film too.

@bradsbuilds 9 месяцев назад

Can't have them rusting on me!

@gilwolf7556 9 месяцев назад

Where is your shop located ? Thank you

@bradsbuilds 9 месяцев назад

South of Rochester NY

@user-gp6sw 7 месяцев назад

I don't want lanolin in my radiator fins

@kennyl1746 10 месяцев назад

How much?

@bradsbuilds 10 месяцев назад

It depends on the condition of the vehicle, prepwork involved, and size/frame type of vehicle (uniside vs. full frame).

@hassanibrahim818 9 месяцев назад

2023 4 runner. How much?@@bradsbuilds

@zachthompson5113 10 месяцев назад

Shnikes…..I went way overboard

@thecount1001 10 месяцев назад

how do you get the sheep dip smell outta your skin, and nose? it's all i smell for a week.

@bradsbuilds 10 месяцев назад

I use a mixture of dawn dish soap and an abrasive hand cleaner with pumice. Seems to do the trick for me. I've moved over to a full face fresh air mask and that's been much better than inhaling the overspray. Thank you for watching!

@thecount1001 10 месяцев назад

i didn't even know what a full face fresh air mask was; well you're not fooling around when you put that thing on!! @@bradsbuilds

@RoyJones-qq3lo 7 месяцев назад

Good job . But you have on ear protection? A mask with your nose hanging out? Don’t get either . I just hope you are not the person that drives around alone with a mask on😂

@RyGuy- 3 месяца назад

Wear a respirator kids...

@voidisyinyangvoidisyinyang885 2 месяца назад

wax in the lungs - I got some of that from Fluid Film.

@Ram14250 9 дней назад

I watched your video. Some suggestions... do as you may.... I don't like the "feelingless" Robotic voice used (your voice) voice over. Very monotone, emotionless and hard to listen. Gotta lighten up and less dry. By the way... Like the truck very much. Glad you are coating it with protection. You do not nescessarily need to "clean" the underbody. I'm not sure why you guys say that? The first thing you want to do it find a dusty road to drive down after application! Dust/dirt help the product stay on the vehicle...even when sprayed over dirt! Water is your worst enime when prepping for a Lanolin / NHOU oil.