There are two things you MUST do when creating molds and castings. The first is to mix your two-part product thoroughly... really really mix it a lot, while at the same time trying not to introduce bubbles.
The second thing is to use the correct release agent. Liberaly, and according to instructions.
Yesterday I tested a plastic mother-mold material (a plastic paste) on my poly mold... using a silicon release agent (it's what I have) instead of a general-purpose release.
Needless to say, it stuck. Doesn't matter in this mold.
I have one more mold where I can allow stickage... so I'm going to try acrylic fixative to see what it does. I really want a local supply of release agent! I don't want to order more of the "official" stuff, because I don't want to pay shipping...
So, at lunch, I'll try experiment #2.
Failing that... I guess I'll be making an order.
At work, I've actually been productive lately. My stress goes way down when work is going well. Which is good, because a number of things are going down the crapper for the Haunted Trails -- all outside events, of course, so now we get to see how well we can adjust and adapt to a hostile universe bent on our destruction.
Posted by Edwin at September 3, 2004 11:12 AM