Wednesday, June 27, 2018

Questions about Using Polymer Clay with ImPRESSive Putty

We had some great questions about using the Reusable Molding Putty, ImPRESSive Putty for polymer clay molds. I'd like to share those questions and answers with you:

 If I melt the molds, will I need a teflon bag or can I just do it in a glass dish? 
            Glass dish is fine. Just put the Putty on a plate or plastic bag. If you melt it in a toaster oven, maybe not plastic, but anything just to hold the putty. Be careful it will be hot, let it cool before forming. In a microwave a small mold will soften in about 20-30 seconds. You can also heat it in the toaster oven. It will be quick. Keep the temperature at 200-220 F. Don’t go above 220 F on the toaster.

Will I need activator to reuse the ImPRESSive Putty? 

No activator needed. The dampness on the molds is the activator, just wipe it away with a paper towel when the mold is solid.

Do I need some type of mold release to mold polymer, or polymer with metal leaf on it? - Will mica powder damage the putty if I use that as a mold release?

You will likely not need a mold release. The activator that is already in the Putty will work as an activator in most cases. If you want to use the mica powder, that’s no problem.  When you re-melt the Putty, just dust off as much as you can and kneed it into the Putty when it’s soft.

What temperature can the putty withstand in a regular oven, and can it be used for molding liquid clay (liquid clays bake from 265-300 degrees)?

The Putty melts  at about 185 F, so you probably can’t use the liquid clay directly. You can chill the mold in the freezer to enable temperatures up to about 220 F, but that still seems a little high.

Let me know what other questions you have. It’s super easy, heat, press, cast, and re-use J You can remelt and reuse that mold you have dozens (and dozens) of times so feel free to experiment. That's why ImPRESSive Putty exists.

Thank you!



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Enjoy Mold Making and Casting with ComposiMold, ImPRESSive Putty, and EpoxyColors