Release agent for creating oogoo object with oogoo mold? Answered
I have a mold of a webcam which, due to steep undercuts, I made with oogoo. Worked great!
Now I want to make a rubber duplicate off of that. Only problem is silicone sticks to silicone like crazy!
First I tried a sample with cooking oil and also wd-40. It still stuck. I heard cooking spray is a no-go since it actually contains silicone. In fact, they say that's what most cans of mold-release you buy are made out of. Just cooking spray! Interesting factoid, but doesn't solve today's problem.
A mold-making book I found at the library said something called "spray wax" is what you need. After searching Amazon and Smooth-on plastics I wasn't able to find any mold release called that, so I just tried grabbing some cheap spray-on car wax from Walmart. That's either not the same thing, or oogoo is too different from the official casting silicone that the book was talking about.
Anyway, I'm about out of clues now. Anybody got any more tips?