LARGE BATCHES OF EPOXY TIPS / TRICKS AND INSTALLING THE TRANSOM CORE!

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Planning out the steps of a particular task is so important when you only have one shot to get it right! This is particularly true when large batches of epoxy / resin will be needed and you're on a limited timeframe ;-)
This week the first part of the transom core went in and I also bring up some good tips / things to think about when you're mixing up larger batches of epoxy resin
Hope this is helpful!!
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Опубликовано:

15 окт 2024

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Комментарии : 232

@dannybevan8093 Год назад

G'Day Andy. I finally bought my first fibreglass half cabin only a month ago at the age of 56. Our kids are raised and flown the nest so it's time for "our fun". Straight away I new I wanted to move the steering position up onto the angular console face because it was to low and almost between my knees. So I got to digging into how-to vid's because I had to strengthen the face to mount the new steerage point. There was no ply in the top face.. You've quickly become my fibreglass work go-to guru for your simple explanations and obvious skills... One tip I might offer you after watching this particular vid is, you can buy 4"x4" vinyl "slip sheets" really cheapy to use as templates to accurately cut out your ply pieces for the stiffened transom centre. That way you'll avoid those gaps where the resin leaked so bad to a degree... They're used on pallets by forklift drivers to push or pull nylon bulk-bags and other products onto pallets without risking fork blade damage... For a big template cut-out you just glue one or two together. They cut and shave super easy with a safety knife.... Cheers, Danny.

@ke4tdm 3 года назад

The only channel I watch where it would be ok for a hour video lol

@mrp6530 3 года назад

I said to myself when I saw him spread the epoxy on the coosa that I would have thickened it a little more, to be close to a consistency of mayonnaise. The end of the video told me I was right. I used to glue the transoms using an M600 with a fatty amount of polyester and used large offset screw clamps (home made ones). In fact, we used polyester resins and puttys most of the time, and we kept the epoxy for very difficult repairs. I love this channel. :)

@sv.scintilla 3 года назад

My wife loved your ziplock bag idea. We have been doing boat projects for 50 years and recently built a boat as our covid project and this would have been helpful.

@chriscarter3588 3 года назад

I wouldn’t worry about how long the videos are I could watch you all day iv learned so much from you alone

@donaldmendes184 2 года назад

Well Andy your conscious will alow you sleep at night, you did the right thing. Well done, this why your a true professional. 👍

@mattray9359 3 года назад

your vids are never too long Andy!

@whitecapmadness7181 3 года назад

Only 6 out of 10? You made a huge job, look so easy. Well done.

@lifeofdave1237 3 года назад

Fantastic as always Andy 👌 Love the longer videos , could watch them for hours . Really helpful and informative. Tip for loading your zip lock bags for piping, put the bag into a plastic measuring cup, then can poor the mix in easier 😉 can't wait for next week now 👍

@svlamancha9877 3 года назад

Great video Andy. Looking forward to the reasoning for such a runny mix. An alternative method may be to prime each surface first let that get tacky then spread a much thicker mix on with a notched trowel. Larger notches for the first layer to account for the rough transom and finer notches for the second layer as it’s two smooth surfaces. 👍

@edstimator1 2 года назад

excellent suggestion!

@janrupus9585 3 года назад

Dear Andy, I am probably overdoing it a bit but I use to roll out 1 thin layer of non thickened epoxy on all surfaces to bond. While this becomes tacky, I prepare another batch of epoxy in which I include way more collodial silica, almost like the putty used at the end of your video. this thickened epoxy I apply with a fine glue comb to both surfaces letting them "suck" together

@SailingFoxyLady 3 года назад

Fantastic job Andy, i had no idea you were fitting 2 sheets of coosa!not paying attention somewhere!🙈guess that's why i joined the army!🤣 love the bag piping,had a few guys recomend to me for filleting. Next big filleting job I'll be getting myself some bags👍🏻👍🏻🤙

@dougulrich5381 3 года назад

Looks great Andy, glad to see i'm not only one that likes a lady with a thick transom ;-), she is going to an amazing boat!

@kyleoglee 3 года назад

I'm not a boat guy, but have been taking a pretty deep dive into composites fabrication lately. Your channel is amazing Andy! Youtubing done properly!

@ascott6804 3 года назад

The prep work was spot on!! You get to concentrate on "the job"! Great work!!

@rchuyck 3 года назад

Thanks for the video, looking forward to next weeks one about the epoxy thickness. What about wetting out both surfaces before mating them?

@ArcticSeaCamel 3 года назад

Great video! Thanks. BTW, I would suggest you to get a new overall...? Or repair it with fiberglass? 🤪

@falseprofit4u 2 года назад

I guess when you're doing a large area like that it's best to be looking at the resin left over than looking for it !! Just an observation though, the second piped mix looked more like the slump consistency I'd be comfortable with for the gluing up of the coosa panels, great video , job and outcome al the same.

@jameshanson5401 3 года назад

Your channel is great . its helped a lot. On to bigger repairs now . when you cut the coosa did you have to angle to meet the bottom

@mwatkins2464 3 года назад

Longer videos are great. It’s looking solid!! Thanks

@mickfisch96 3 года назад

Thanks Andy all the way from Australia. I really learnt a lot for a big recoring job I’ll be doing this winter. Much appreciated

@paulkube3901 3 года назад

I used 3/16 notches trowel, one direction on one side, 90 degrees to that on opposing side. Grades thickness, provides even covering and aboids over application and waste. A lot depends on judgement concerning varied depth of unevenness of surface being applied to. Mayonaise / PB vs ketchup ;) Worked well for me! :)

@finscreenname 3 года назад

Ya, the last Donzi 16 recored I did I used a bigger notched trowel (like 1/4-V notch) and much thicker resin. Great transfer to both surfaces and the knotched trowel marks allows air to escape.

@SkypowerwithKarl 3 года назад

Yes to Mayo but no to a bi-directional trowel. Wet both surfaces with non thickened epoxy. Then apply the Mayo like epoxy with 3/16 -1/4” step trowel so it ends up vertical. Apply surfaces in contact bottom first then clamping pressure working bottom up. Cross patterning trowel is more likely to have little trapped bubbles. Your right, judgement, but I’d like to add planing and logic.

@borismartinez6475 3 года назад

Did the same when I did my friend's and my transom, worked very well for me too.

@peterjmcgowan 3 года назад

Hah! I was in the comments to ask why not use a notched trowel? Probably would need more thickening but that seems like it’s a good idea anyway?

@andrewiannello6548 3 года назад

Yeh, notched trowel gives you better perspective on how even your glue is. It also helps the glue spread more evenly during the glue up.

@johnp3427 3 года назад

Make your video as long as you want, love watching and learning.

@woodwalker15 3 года назад

Aww man, I wish this video had been out before I laid that g10 on the bottom of that jeep you're helping me with. I mixed my epoxy way thicker that what you did here. More like how you mixed the batch you pipped in the zip lock bag. Wasn't runny at all. Should I be worried? I did get some squeeze out. And I used long lag bolts though all of it into 4x4's and tightened the crap out of them. It sounded good with the tap test. Ryan B.

@rickyretic 3 года назад

Love the longer videos.

@gugeflyer7739 3 года назад

I agree!

@drmarine1771 3 года назад

Great video i'm just in the process of trying to fill in a key hole on a stern drive to take a pod with an outboard. it's doing my head in. thanks for your input with repairs cheers from Melbourne Australia.

@dalespringerwilson4233 3 года назад

Excellent video once again. As far as a little long only by your definition I'm sure we would all love longer videos ! Thanks again for all this knowledge and expertise you give us every week.

@zakviviano9981 3 года назад

Excited to hear why you went thinner than I would have. I can't wait for next week! Thanks for all of your lessons over the years Andy!

@DougsMessyGarage 3 года назад

This job was a big step forward getting the transom back together. The result looks good to me.

@garyfroeschner2523 3 года назад

Always learn a lot from your videos. Thanks.

@jordanhailey9949 3 года назад

Thank you for what you do! Gave me my inspiration back to finish my 1975 fiberform 19'er! Got to finish the glass work over the new stringers and lay the deck....ect!!!

@LRBennettInc 3 года назад

Perfect timing for my project and the consistancy allows the epoxy to mesh between the panels well and it will set up quickly. I like how you filled the seams. Can't wait to see the glass install. Thanks for sharing.

@zojo230 3 года назад

You know when I was dealing with Coosa approximately a year ago, there wasn't that much information on RU-vid, I think shipshape had a program. Just a suggestion, you might want to add Coosa to your title for search engine purposes. Just adding Coosa to the transom has made that transom (1.5 inches) far far superior than it ever thought about being. I think you do a fantastic job of explaining ...and I have to say Boatworks is one-stop shopping for anything fiberglass-related.

@victorremick9721 3 года назад

You have really put a lot of work into this project and it shows looking real good.

@CapnJackSB 3 года назад

Andy, After building a fiberglass kit boat years ago, I'm really impressed watching you work. I wonder though, why you didn't place a light, wet layer of glass material under the first layer of CUSA to eliminate any chance of voids in the bound to the transom?

@demoking1422 Год назад

You are a craftsman I learned a lot from the last 3 of your videos I've watched and determined how I will approach my transom problems , Would you like to buy a 1958 Dunphy ? Thanks !

@officialgearhead6736 3 года назад

The longer videos are a good thing 👍🏼👍🏼

@brianwhite5464 3 года назад

I know I am ok with the longer videos! You always have great content and explain what your process is going to be and different option someone could do and have the same results! Great job Andy!

@SalingSamantas 3 года назад

I wish I saw this video before I bought bonded my deck cores to the glass on my sailboat project. The thickened epoxy would have be a good idea. In any case it bonded well,but I see it could have been better. I know you're a busy man. I would love your thoughts on my project if you had the time. All documented here on RU-vid of course.

@georgelewis8904 3 года назад

Happy to watch ,learning more all the time, I have never filled like that, only ever holes with taped edges so find this interesting

@4xfun821 3 года назад

So on a scale of ....uuhm - yeah cool, how comfortable are you with the filler around the coosa? I am just thinking that the boards are now creating stress on the ends where it is joined. You are the expert and want to do a transom replacement so I am making notes in every video until it is done and then I will watch it again before I try it. Awesome as always to watch!!

@robertwalker3168 3 года назад

Been watching this project and very impressed, sometimes find it difficult to read what I sometimes think of as being quite negative crytisism (sp?). Think of it as positive crytique. Keep doing what you do mate, entertaining education, and a brilliant insight for the many.

@TotalBoat 3 года назад

Great progress and super helpful tips!!!

@pettermathersimonsen6029 3 года назад

Interesting work as always. One question; why did you not paint/prep all surfaces with a layer of unthickened epoxy?

@richardvargas9224 3 года назад

You're a master of your craft!!

@erichbrann3643 3 года назад

Good advice on how to deal with the left over epoxy. My neighbor burned his house down after removing a fresh epoxy finish from new flooring and putting all in a garbage bag.

@daveengstrom9250 3 года назад

I get a real kick out of these videos. I have learned a lot here.

@donpound6571 3 года назад

I would really like to know a little more about your through bolt clamp technique. Do you place a sheet of plywood on each side to spread out the pressure? How do you prevent the through bolts from becoming permanently glued in? How do you keep epoxy from running through the bolt hole and permanently attach the plywood if it's there to spread the pressure? Really enjoy your show. I've nearly finished watching all of your episodes a second time through.

@davidneilson3508 3 года назад

I actually enjoy the longer videos 👍👍😊

@sailingstpommedeterre4905 Год назад

Awesome ! I like the ziplock bag trick for epoxy (into gaps).

@glove9806 3 года назад

Perfect! i'm watching my neighbor prepare his transom for a rebuild and i'll be referring him here!

@C3BFA 3 года назад

Learnt a lot from your videos i have just done fiber glassing for the first time on my boat i have cut out an old cupboard and made a bigger one part 1 has just gone on my channel just wanted to say thank you i have subscribed a while back too

@barney2001 3 года назад

I use an old open 19 oz can to hold the plastic bag. Place inside and fold over the opening. Holds the bag upright while filling.

@davecartmell4092 3 года назад

Nice job bro. That bond is wicked good. I disagree with the comments the consistency was too runny. While some ketchup may have squeezed through. at least you have the knowledge that there is total coverage and not a 1/4in silica thickened oreo with a million bubbles between you're 2 pieces of coosa or the transom. 👏

@BCB-Boats-Media 3 года назад

Great work! Its so entertaining to watch your videos and every time I see some good tip that I can use in my own projects. Keep up and thank you!

@kevgermany 3 года назад

Glad you filled those gaps, was worrying me as a weak spot. Hope you epoxy a layer or two of glass over there before reforming all the bits you cut away. Nice job.

@Micington 3 года назад

Andy do a polyester bog mix and watch how long it takes to go hard. Work time for poly bog is a lot longer then I thought and lots more working time then epoxy. It’s hot where I live! So pretty sure you’ll be surprised

@richardnwilson 3 года назад

Great video thank you! I always like to keep a few small projects ready to epoxy when I do a bigger epoxy job and that way (if I have time) I have a use for any extra mixed epoxy.

@hugobokman 3 года назад

Hey man, your genius lies in the way you know how to sublime your slip ups.

@gregm2074 3 года назад

Great to see how others do it. Personally I would wet out both contact surfaces with the runny soup and then add the thickened to peanut butter non runny mix to one side using the notched trowel. Possibly overkill but like you said... If it's worth doing well for peace of mind in a high stress area then it's worth doing well! ✌️👍👌

@mattlevins6754 3 года назад

Is there a reason you didn't thicken the epoxy more when installing the Coosa. My light on experience says I would have, but I'm second guessing myself now. just trying to understand the thought process. Sorry if I'm Digging at something you wish you'd have done different for all of us to see. Love you stuff. New Patreon soon as I can swing it.

@captainjayc9217 3 года назад

I would like to see a video about comparing the strength of thickened epoxy between mixing filler first or mixing hardener first.

@frankpruse19 3 года назад

Really great to watch!

@Stoneface_Garage 3 года назад

I like to pre-wet my coosa with a thin unthickened epoxy coat first, which seems to help the thickened stay put better. I'm using it in a fiberglass car application, BTW.

@capitanschetttino8745 3 года назад

A great video, as always. And I loved your DeWALT saw!!

@alfaspiderveloce6617 3 года назад

Did you consider applying the slightly thickened expoxy to the transom inner surface to insure more complete wet out and adhesion? Also could have used an old paint brush to paint the squeeze out to the gaps around the panels as a pre-filler before inserting the real thick product in the plastic bag? Things seem to go better when both sides have a liquid surface? only asking...

@fishyhobby3697 3 года назад

Thanks so much, always a treat to see your videos!

@joaquimaugustorocha 3 года назад

Just out of curiosity... Does thickened poly work with the zip lock bag??? or does it melt the bag??? Keep up the good work!!!

@Stormer1633 3 года назад

Only an expert (as shown) can do a two person job on their own, nice work

@jimo3129 3 года назад

I think it’s a solid 10. Great job

@SVSecondChance 3 года назад

We would like longer videos. Not 1.5 hr and stuff but a little more than what you just did. We like what you are doing and having to wate for it is hard to do. You do great work. Thats for sharing and thanks for listening to us as well with the ideas on adding glass instead of sanding it off. We really like helping you in those areas.... lol

@mwatkins2464 3 года назад

I totally agree. Longer is a lot better and would make you the greatest to watch out there. Thanks Andy 👍👍

@cdupointe 3 года назад

Is there ever an instance where you would glass between coosa? If you were using ply would you use a layer of glass between? And if so what kind of glass? I am going to be replacing the transom on an 87 Chris Craft SeaHawk and have been using your channel religiously to learn!

@Cavalier-lp8tr 3 года назад

You're a good teacher

@Yambolic 3 года назад

I couldn't find ziploc bags here when I was doing epoxy fillets but I could get piping bags that cake makers use for icing etc. The ones I got are pretty thick polythene and triangular. Just fill em up and snip off the bottom for the size of fillet. I think they're a lot better than ziplocs. And I thought your epoxy wasn't thickened enough as well. Looking forward to the reasoning!

@calvynvandenberg6943 3 года назад

Really enjoy your videos.....have learned a lot. Thank you!

@walter2990 3 года назад

Thanks for the video, stay safe!

@russell2546 3 года назад

Hi Andy I have a very old piece of barn wood that I would like to make into a table top. The piece is 20 in wide by 1 1/4 in thick and heavily weathered. I do not want sand the surface as I would like to retain the grey patina of the wood. I would also like the finish to be clear when set. Which material do you think would work best, epoxy or resin ? Thanks in advance for any advice you can provide. Russ

@barryinkpen6026 3 года назад

Epoxy in a zip-loc bag! Outstanding!!

@todddunn945 3 года назад

I was a bit surprised that you didn't wet out the surfaces with unthickened epoxy, particularly the Coosa to Coosa bond, before putting the thickened epoxy on. I guess that you used such a thin mix was the reason. Personally I would have wet the surfaces then used a thicker mix for gap filling, but that is just me. Looks like it came out fine though. Did you actually put the left over epoxy on gravel or just stick it into a snow bank. The latter is what we would have done in February here in Maine, but maybe you are snow free there in northern Wisconsin.

@larrywilliams1756 3 года назад

Hey Andy great channel sir been watch for a few year about to start a project redoing a Carolina skiff j16 replacing the fiber glass floor and foam can I use epoxy with 1708 biaxial

@karlschmitt6231 3 года назад

I'll give it a 10 ...Nice job Andy ...

@EdblDD 3 года назад

Wow can't believe all the comments about thickened Epoxy! My question is why 2:1 as apposed to 5:1? Thanks for your site!

@scottschlather4945 3 года назад

Andy, what would you do if after you glassed EVERYTHING in...you tapped on the outside and heard a hollow spot?

@Matsci101 3 года назад

I luv the Smell of Epoxy in the morning! DLUX Brother!

@mitch_the_-itch 3 года назад

I must say Ive never wanted to do Fiberglass work before. Now after watching your Channel Im totally sure I made the right choice ;) Even if it were in VR I wouldnt itch. Question: Why do you suppose Epoxy and Fiberglass are so expensive? In other words my titebond2 and canvas is super cheap yet still weighs about the same as the good stuff. Moving any liquid is expensive and is typically the biggest cost in mfg.

@williamjohnson1126 3 года назад

Hi Andy, I have a question. When do I use epoxy with hardener and when not. When do I use gelcoat with wax and when not. Thanks

@curtisgore1611 2 года назад

You do good work dude! Also you make a good video!

@peterihre9373 3 года назад

Great video as always! Was it to late to thicken the extra epoxi you scooped up more and use it around the edges insted of mixing new?

@boatworkstoday 3 года назад

Might have had time to do that, honestly it never crossed my mind lol.

@borismartinez6475 3 года назад

At that point all the pieces to pressure the coosa was on place, could have been done, but would have been harder to do it with all the obstacles in your way.

@n1352-m1i 3 года назад

it is so fluid, how can you be sure it did not just flow by gravity leaving hollows between the boat and the first layer of coosa? the batch in the plastic bag was holding itself a lot more...

@andyharris3376 3 года назад

That’s what I was thanking

@boatworkstoday 3 года назад

There was some reasoning for having it so thin that I'll touch more on next week in video (easier to explain in video than typing lol :-)

@peterengel7885 3 года назад

@@boatworkstoday Yes I want to know.

@johninerie9251 3 года назад

@@boatworkstoday Good - I was wondering the same thing - when I have bonded with Epoxy I have been mixing a bit thicker so i am curious as the reason I have a core repair to do in the spring with Balsa

@n1352-m1i 3 года назад

@@boatworkstoday now that's some teasing... ;) I would have watched anyway.

@firemansailorjim 3 года назад

Another GREAT video lesson30 minutes of video would be fine. I appreciate all the instruction.

@DonHarden 3 года назад

When you scooped up the squeeze out back into the bucket could you have added more silica to it and then piped that into the voids? Or was it done as soon as it squeezed out?

@TheBeaker59 3 года назад

I would have wanted to do that but not easy with all those props in place and once those are in never move them until epoxy is cured. I would also have used some talc and microspheres its only packing until its glassed over after all. In my shop there's always some filling or fairing elsewhere to use up excess epoxy :)

@royconde3176 3 года назад

great video , would it be ok to also epoxy the transom side before pancaking together thanks

@stevengunter8845 Год назад

For the areas that were piped in with a zip-lock bag, could you have also folded in saturated glass cloth first?

@jaysparc 3 года назад

I could watch for an hour no problem.

@dondonaldson1684 3 года назад

It was good to start with a thin mix to allow wetting into the Coosa, but in order to hold more epoxy I would have thought some biaxial glass mat would have helped. I was surprised when I saw you go straight to Coosa. I know you ran into a time crunch but why not anticipate squeeze out and just use the scooped out squeeze out with cabosil, mix it and pipe it into at least the top gap?

@moviezaftermidnight6348 3 года назад

Have you made your own boat yet? Jig and everything? This is something I would really like to do, for what it costs it would be cheaper than buying one brand new.. Really want to make a carbon/kevlar/eglass 2 person sunfish that can fit on a trailer that can be pushed by hand or attached to my bike like any other trailer. The boat mast would be collapsible aluminum or carbon and hull would have to be short like a sunfish.. poly seems better than epoxy for this.. shouldn't be too hard to make 2 jigs for the hull & deck.... would be neat to 3d print a small sailboat.. 8D Would like to make a hydroplane keel & rudder adaptation to give the option..

@daveengstrom9250 3 года назад

Can you tell me the difference between 5 to 1 and 2 to 1 epoxy? When to use which? Or does it matter?

@whitecompany18 3 года назад

My only problem with not mixing the hardner first is my thinking that if the media is absorbent it's only soaking up the un-hardened mix then only getting hardner on the outside of the particle when mixed and not entirely through it ... I'm probably over thinking it though.