reusable mold, and one that’s a sad waste of silicone. If you’re helpless to know the difference, then check out [Eric Strebel]’s 9-minute masterclass teaser video on making a two-part mold ...

When you need a smooth and polished finish, or you want to make exact copies of an existing injection molded part, casting resin parts in silicone ... the two sides of the mold will touch, to ...