Castaldo Rapido jewelry molding rubber is a VERY FAST version of our Super High Strength, Econosil™ and other silicone jewelry molding rubbers that can speed up your work...
Self hardening protective film for almost any material. Permanently elastic, acid and base-resistant, tearproof, can be taken off without residues. Bottle of 50ml content.
Firm and flexible. A good all purpose mold rubber that is suited for thin molds. Rubber is 1/8 thick, vulcanizes at 310°F -15 minutes for 1/4 mold frame thickness.