Carbon and resin not taken to gel coat

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Carbon and resin not taken to gel coat

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Howie7	Howie7 posted 10 Years Ago HOT Topic Details
Group: Forum Members Posts: 1, Visits: 17	Hi everyone, first post on here. I have a small background doing some fibreglass repairs and mould making so have a slight clue about what I'm doing. But obviously not too good as I'm having a nightmare here. Recently got myself some carbon and making some small stuff and decided to take on the rather ambitious task of taking a mold of the splitter from my car (Honda civic type r ep3) and making a cf replacement. First time round making the mould I used easy composites tooling gel coat followed by resin and a fair few layers of csm. When I tried to release it the gel coat had taken to the bumper and the csm and resin was separate from it. Absolute nightmare so stripped it all off and started from scratch and my mould was complete without a hitch. After that I gave the bumper 2 coats of wax and 2 coats of clear gel coat. I ran out of time and had to leave it 4 days because of work. Then I gave it a coat of resin followed by 2 full layers of cf mat and some reinforcement cf around the edges with finally some honeycomb core material in the centre for extra strength. I gave it 24 hours to cure and when I tried to release it the same thing has happened as what happened with the first mould and the gel has taken to the mould leaving it basically stuck in the mould. I have tried to get it released but it's just releasing between the gel and the cf/resin. I'm aware albeit slightly disheartened that I have made a booboo and wasted a fair amount of material. But I am more so concerned about where I went wrong and how to ensure this doesn't happen again. Thanks in advance for any advice or help, thoroughly appreciated Howie.
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Blackrat	Blackrat posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 20, Visits: 85	remember .. wax provides the slip and PVA provides a barrier .... once the mold has been seasoned and all the millions of tiny pores have been blocked up, then you can switch to wax only yes , there are guys who do wax only .... all i can say is well done and your braver than me ;-)
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Carbon and resin not taken to gel coat

Howie7 - 10 Years Ago

Basically you have a "stick up" where the gelcoat has bonded to the paintwork of your original....

Fasta - 10 Years Ago

Totally agree with Fasta. 2 coats of release wax is never enough, if you're using wax alone then I...

Hanaldo - 10 Years Ago

Definitely not enough coats of wax, or other release, and most likely combined with too long a cure...

Dravis - 10 Years Ago

remember .. wax provides the slip and PVA provides a barrier .... once the mold has been seasoned...

Blackrat - 10 Years Ago

I use wax only, and yes it can be tricky! Wax only is not dissimilar to semi-permament in that you...

alex.mc - 10 Years Ago

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Carbon and resin not taken to gel coat

Carbon and resin not taken to gel coat

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