Hard Silicone Rubber Mold Making (35.27 oz), Platinum Liquid Silicone Non-Toxic, Making Silicone-Mixing Ratio 1:1 Ideal for Casting Resins Molds & Silicone Molds,Silicone Molds DIY Manual Making.

Key features

• ✔️BEST RUBBER FOR MOULDS: 1:1 mix ratio (both by volume and weight), it hardens at room temperature. The moulds made with R PRO 30 are very rigid, they last a long time and are excellent for casting resin, wax, plaster, cement and other materials.
• ✔️HIGH PERFORMANCE: R PRO 30 silicone rubber faithfully copies even the smallest details, it allows you to make 15% more castings than other silicone rubbers and the moulds have no linear shrinkage. Pot life: 45 minutes - Hardening time: 3 hours. It is a very fluid rubber with easy mix ratio and does not need to be degassed.
• ✔️HARDNESS: with this catalyzed rubber you can create high hardness moulds, very elastic and highly resistant to tearing - 30 hardness ShoreA;
• ✔️MOULDS PERFORMANCE: The physical life of the moulds depends on how it is used (cast materials, frequency, etc.). Casting abrasive materials such as concrete can quickly erode the details of the moulds, while casting non-abrasive materials (such as wax) does not affect the details of the moulds. Before storing, the moulds should be cleaned with a soap solution and dried completely.
• ✔️NOTE: Sulfur-based plasticine is NOT compatible and can inhibit the catalysis of R PRO 30 silicone rubber.