On the subject of releasing silicone mold materials --
I like Castaldo's Mold Separating Cream. I put it on the edges of
the mold frame. I don't think that was their intention, but it
I also put super parchment on the outside of the mold frame, on top
and bottom, as it were. What is super parchment? It's this Teflon
sheet that is sold for use in home baking. It keeps your cookies
from getting stuck to the cookie sheet. Works great for that.
When you're done vulcanizing, just peel back the super parchment!
No sticking. Saves time.
Where to buy super parchment? Up scale kitchen shops or specialty
stores. Williams Sonoma has it. Sometimes you can find it at Bed
Bath and Beyond or Whole Foods.
You can also get it from me, by the way. (and for less than
Metalsmith, Certified PMC Instructor
Hard to Find Tools for Metal Clay