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Issues with what i think is shrinkage!
Issues with what i think is shrinkage!
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Issues with what i think is shrinkage!
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Undercover
Undercover
posted 9 Years Ago
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ive been attempting to make a mould. I got the part and cleaned it up, gave it 3 or 4 coats of #8 release wax. I also gave a few coats got the surface that the plug was sitting on.
I gave it a good coat of tooling gelcoat, bit thick in places but a good coverage all over. I taped up any holes where i didnt want gelcoat or resin going.
I let that pretty much go off, so there was still a little bit of tackiness left. And starting laying. About 2 layers thick but up to 4 maybe 5 and intricate areas.
I let it all dry and attempt to demould.
As you can see from the picture, didnt go too well. Once i did get it removed i attempted to put the part back in but it wouldnt fit
Mould seemed smaller than part. Any ideas?
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Issues with what i think is shrinkage!
Undercover
-
9 Years Ago
For one, 2 layers is no where near enough. You need one layer of 100 or 225g csm and let that cure...
Hanaldo
-
9 Years Ago
Also, 3-4 coats of wax is lean. I would be going 8-10.
Hanaldo
-
9 Years Ago
Im using 300g csm, the only stuff i have available to me! I only done a few layers then more would...
Undercover
-
9 Years Ago
Then do 7-8 layers of the 300g. Your mould is no where near strong enough to demould a part like...
Hanaldo
-
9 Years Ago
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