Castaldo® Gold Label® is a Premium, soft highly pliable molding rubber. This rubber is pre-cut for molds that are 1-7/8 x 2-7/8" (48 x 73 mm) with rounded corners. It has about 30 pieces that are 1/8" (3mm) thick, which will be enough for at least 5 molds, depending on the thickness of the mold. This rubber works great for molds with under cuts. Molds must be vulcanized at a very specific temperature.
Comes with instructions. Store away from heat. Sold in a 1 LB./0.45kg bag.