2-part molds
I'm trying to make some 2-part molds, but the mold release paste that came with the rubber is too thick. What do you use to keep the 2 halves of a rubber mold from sticking to each other when you...
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I've used vasaline (petrolium jelly) brushed on the mold half. Use a stiff brush and try to get as thin a coat as you can when you get next to the item you're making a mold of. Thanks, Bruce Hirst
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if the paste is more like a solid wax, you should return it because it's been sitting too long and useless now.
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I use Rubber to Rubber mold release from Micromark. I've used it for a couple of molds and it works fine. It's a liquid and brushes on easy. It does sound like the release you have is no good.
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Thanks for the tips! :) Part of the issue is I am using Castaldo's Quick-Sil, which is a very soft putty-like rubber before it cures. It's 2-part stuff (like a lot of the stuff we use). You mix up...
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I've heard some people use PAM cooking spray as a mold release agent for 2 part RTV molds with good success. I've never tried it personally, so I can't say for sure but did find some articles on the...
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I was told to use silicon spray at a Model Railroad store for mold release. Haven't tried it yet, but the nice thing about it if it works is I can get an even coat with the spray easier than trying to...
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you have to be careful if you are using an un-proven method for a mold release. I used a "mold release" spray but found out the hard way that it was only the mold release for resin and silicon and...
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I've done quite a lot of two-part moldmaking with several different brands of RTV silicone... for my mold release I've always used a can of regular spray gloss finish. (such as this:...
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for my mold release I've always used a can of regular spray gloss finish freakin brilliant! must remember to cover the piece being molded so it doesn't gain that glossy sheen to it.
View ArticleRe: 2-part molds
must remember to cover the piece being molded so it doesn't gain that glossy sheen to it. Actually, coating the positive-master is part of the plan.... I'm usually using baked polymer clay (Super...
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