How To Repair Fiberglass: Step-By-Step Guide

Watch along as we take you through the steps to properly repair fiberglass. Even though we are doing these repairs on our 1962 Elva Mk VI, the same steps can be used to repair all sorts of fiberglass.
See more on our 1962 Elva Mk VI:
classicmotorsports.com/projec...
Thanks:
CRC Industries:
www.crcindustries.com/
Tire Rack:
www.tirerack.com/content/tire...
Simpson Racing Products:
www.simpsonraceproducts.com/

[@dickieb2233]

Here is some positivity. Everyone is an expert and loves to put their point across. I have never worked with Fibreglass and welcomed your approach. There was a bolt hole that had broken free so the plan was to fill and re-drill. Thank you so much. I was going to use gaffer tape but used the inside of a tetra-pak milk container as it is foil and offered support of card. Masking tape used to hold that against the existing bodywork. It just worked perfectly and came away without any pull. Smooth as silk underneath. V happy chap. 👍

[@markkencity3717]

Thanks for extra protection advices! I seen people using catalyst with no eye protections, aero-sil with no masks etc. Great video with detailed informations. I've been learning fiberglass and gel coating repairing for 3 months now thanks for helping me expanding my knowledge.

[@WakeMarine]

I used to do this on the AV-8B Harrier. Showed the boys how to use the vacuum bag and heat blanket. I have an AZ K5 blazer top to save. Thanks for the help.

[@iankirwan8156]

Excellent video, thank you for sharing your knowledge and good luck with the restoration

[@miloudiben]

Great video, thanks for talking through the right way to do things!

[@ClassicMotorsports]

Glad it was helpful!

[@BIMMERZEITT]

Very nice video, thanks for uploading

[@wp5122]

Thanks for a great video!

[@Voyager23B]

Thanks for the video! I learned so much for repairing the fiberglass skin of an RV!

[@ClassicMotorsports]

Glad it was helpful!

[@jamesbashaw5831]

This was super helpful!

[@davidpalmasax5466]

Your Awesome man!! Thanks for sharing 👍👍👍

[@keithsclassicgarage1133]

I learned the hard way! Thanks for the info!👍

[@ClassicMotorsports]

Glad to help

[@kelvindodd5577]

Nice job. Tim, thanks, there is a lot of really good information in this video. It will come in very handy.

[@ClassicMotorsports]

Glad it was helpful!

[@prototype9904]

Great explanation !! Thanks

[@blizteredthumbs7911]

I like this guy. He's always good craic. 🥴

[@andychips6923]

Great video.. im about to dive into repairing the minor front corner damage on my Humvee’s hood

[@benodell9675]

Great job on training

[@jeffnaylor4838]

Great tutorial, learned a lot from this - thanks

[@ClassicMotorsports]

Glad it was helpful!

[@lyntonhowes5154]

Excellent video, probably the best glassing video on KZbin. Thank you sir!

[@bradleyr5172]

Thank you for your wisdom

[@IGNXTION_UK]

Subscribed, great video, im looking to built fibreglass body parts for my 72 bug✌🏼

[@pktmonsters9824]

Very excellent video

[@dh1474]

Great advice, many thanks!

[@ClassicMotorsports]

Glad it was helpful!

[@joewahrerMotorcycleMan]

Thanks I learned a lot...

[@JoelShorey]

well done video, very helpful

[@ClassicMotorsports]

Glad to hear it!

[@poolmotorrepairguyFL]

Jay the Florida pool pump motor repair guy When Service Calls Longwood approved ! that was good info 2 know 👨‍🔧CM

[@LordTwaddle]

This is useful, I need to learn how to work with fibreglass to repair my 1967 Trident Clipper.

[@DG-ou8hx]

Nice concise video.

[@ClassicMotorsports]

Thanks!

[@axel-vancraft]

thanks you very much, I learn a lot from your video. Is it epoxy or polyester resin ?

[@joeycarpeal]

@classicmotorsports is it safe to use paint stripper to remove the old gelcoat??

[@terryday6637]

Great video! The only thing missing is a cure time before sanding or adding additional layers. Otherwise, very helpful!!

[@nicolec7290]

Very helpful. Ty

[@ClassicMotorsports]

Glad it was helpful!

[@charlesisbell4340]

So I have yet to find an answer as to how to repair a dually fender lower bar brace bolt hole that broke off which is slightly under 1"x1". Any suggestions?

[@TheTrinityguy]

You are not using a roller to set your mat and roll out air bubbles and excess resin? That crucial step makes a repair much stronger by squeezing out the air and keeping the ratio of resin to mat correct for better strength and flexibility. A resin rich repair stress cracks easily..

[@kaypthree920]

never mix with the brush, it introduces air into the resin

[@johndeman7749]

what brand of gel coat do you use and also what type of primer for automotive paint would you use on top top of the gel coat? thanks im doing some custom reword on some widebody/fidnder flares i have on my car that are fiberglass an im having problems trying to undersand what i can use a "gell coat" after i have finished all my body work and repairs to the firberglass. basisly what i want to do is rebuild up the out side layer on the flares. hopefully that makes sense haha.

[@TG5879]

Wish there was an answer to this. I had same question.

[@schassis_eddi]

Science 🧬

[@evolutionista]

Can you comment on what kind of resin you use with that type of mat? I’ve read that some chopped strand mat can only be used with polyester resin. Thank you!

[@mitchfan01]

Dan, don’t use epoxy resin with chopped strand matt as it doesn’t have the styrene in it which allows the matt to be wet out

[@DanTheManIOM]

@@mitchfan01 does that mean polyester resin is ok for strand and woven ? But only use epoxy on woven ?? thanks

[@marymidgett2022]

Hey, I thought your explanation was great. Not sure what gel coat is though? I’m repairing a container door on our motor home where it got tweaked when the slider opened before someone closed the container door. Thanks

[@ClassicMotorsports]

Glad the video was helpful. The gel coat is the top coat that is usually applied to fiberglass parts to give them a high-quality finish to the visible surface of fiber reinforced composite.

[@MrMightyytau]

hot glue gun much better than drilling holes, Acetone removes the glue latter

[@nonya1009]

Wow thanks man your pro I wish you made videos so I could watch them and tell you how amazing your work is because you know just about everything.

[@ClausenLT]

God I hate working with fiberglass. I live in Florida, and I'm just not wearing long sleeves/long pants. Hopefully after a shower the itching will go away. I got some USC All Resin, because I'm working with SMC, and I have no idea if its epoxy or polyester, anyway, so far this stuff seems pretty damn good. B ut the damn activator instructions...awful. This stuff came with cream hardener , which is fine I guess, but i had to use at least a 1/4 what they said to use. First 3 oz batched kicked in probably less than 5 minutes. Nothing like throwing away 2.75 oz of resin. After that I cut it in half, and then half again. I'm repairing a Humvee hood, that someone else has worked on, oh joy! Any way, I really like this video.

[@michealfigueroa6325]

Here in the west temperature always problem too hot resin kicks too soon too cold resin Very slow to kick you can alter ratio cat to resin some what experiment, try working when temperature less a problem the itch, dress up cover skin long sleeves gloves lotions containing lanolin rubbed on bare skin blocks pours and washes off easily hope this helps there is good money to be made in fiberglass repair

[@Imwright720]

Do I need to drill a hole at the end of a crack. ❓❓❓

[@marktunstill9076]

Did he expose the fiberglass matting on all the corners? I don’t see that he did.

[@funkyjunky881]

What about bolt rolling the air out

[@nexpro6985]

Wouldn't it have been better to make a mold from the finished item then make a fresh deck lid?

[@ChristopherRIdleyUK]

Assume you used epoxy resin?

[@jeffnations6649]

You didn't show how to remove the tape?

[@michealfigueroa6325]

Poor technique from start to finish: no need for the screw, tape or foil on other side of crack . foil on wrong side, thick part of repair should be on underside so top can be worked to match contour., stir with stick or rod not brush, let resin rest until all bubbles gone. grind repair when resin fully cured just for start In the trade over 25 years, fiberglass repair my specialty

[@murgyj6198]

I'm about to try repair FRP for the first time. I have a small hole in a wheel arch. Any tips? I have glass resin etc etc just need to know what I'm doing 😅

[@michealfigueroa6325]

@@murgyj6198At this distance it is hard to advise ,But Use the coorrect resin, of the two I used polyster sticks to polyester,expocy

[@michealfigueroa6325]

@@murgyj6198 At this distance. use the corect resin for the plastic being repair, mix accurately, grind back/feather edge at least twice the thickness of the material more on backside the observed side if you can. mask off area "cause this is a bit messy soak mat or cloth thoroughly, I perfer mat to cloth for repairs work smoothly but dont rush lay up slightly past repair area grind back when cured lay up in layers small to larger as you fill the hole you have made Probably best to start with back side first when it has kicked do outside work out the sir bubbles in the lay upDO IT WHEN AIR TEMPS ARE LOW specially at this time of year dos and dont outlined in my responce the this post 25 years of doing this can not be reduced to a few lines I wish you the best and if you are not happy with the results grind it out and do it again.....I've had to a time or two there is a lot of "art" in this kind of work

[@86headhunter]

​@@michealfigueroa6325 make a video of you doing it correctly please sir.

[@1DaTJo]

@@michealfigueroa6325please make a video of it done correctly. 🙏🏻

[@sega2229]

I was taught different and you don’t want any bubbles at all I work on boats and if you get a pocket of air you need to make a slice and stuff it with the type of fiberglass he was using would not recommend using that it’s cheap and thin use the combo or something better

[@MrRicosueave]

Shouldn’t cut the fiberglass with scissors should’ve pulled it instead, not a good repair in my opinion

[@lrodriguez9315]

Grandpa always said the white man was an excellent detailed workers

[@mybuddy1221]

No offense brother, but you didn't do one thing right. No Good.

[@piketroy4576]

Not too good. At the points we really wanted to see, you went into warp mode; seemingly, to prevent us from understanding what & how you did it. If you are not going to teach, then don't tease. I don't watch for entertainment.

[@kodiham7532]

What are the air compressor specs? Make model?