Vinylester/CSM moulds...


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GROPIUS
GROPIUS
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Hi there
I recently made some moulds made out of Vinylester/CSM.
The gel coat is Polyester based.
So now the question is...
...how long do I have to wait until I'll be able to use the moulds to build composite parts?

Btw...
...I'll be using ECs GC50 gel coat combined with epoxy resin on the composite parts.

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fgayford
fgayford
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I have used easylease and another product called Chemlease. They seem to behave the same. I shoot clear coat in my molds the night before I infuse. The problem is the beading up because the surface is so slick. (by the way easylease is awesome and I wouldn't be without it)

One trick is to apply wax over the chemical release to make the surface a little more active, perhaps 3 coats of wax. Now you have the superior protection of the easylease and the greater tack of the wax. When you brush keep going over it until it lays down in one layer without beading and then stop. I have actually done this on a fairly large mold with clearcoat using a wide art painters brush. I kept brushing untill it no longer beaded. (it was gelling) That was on a surface of chemlease release agent.

 My opinion.

Hope this helps

Fred      
GO

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