Product Review

RTV Silicone Rubber for Mold Making - Food Grade - 1:1 Mix Ratio

Cast-A-Mold Platinum is a platinum (addition) cured silicone rubber used for a variety of applications. It exhibits an easy 1:1 mix ratio, low viscosity, excellent tear strength, tensile strength, elongation, heat deflection, and long library life. Cast-a-Mold Platinum can be used to make translucent rubber molds for casting candies, cakes, polyurethanes, epoxy's, polyester's, cement, low mely alloys, concrete, soap, wax, plaster, etc.. It is user friendly, translucent, FDA compliant, and will cure at room temperature.

Platinum cured silicone rubber can be heat accelerated. For example if you heat the mold at 150 f the cure time will be reduced from 8 hours to 30 minutes.

Properties:

Product: Cast-A-Mold Platinum
Mix Ratio: 1:1 by weight
Working Time: 40.0 Minutes
Demold Time: 8.0 Hours
Heat Deflection: 400 f +
Tensile Strength, psi: 580
Elongation %: 500
Tear Resistance, ppi: 160
Color: Semi-Clear
Hardness: 20-A
Viscosity: 10,000 - 12,000 cps

Note: For food applications you will need to wash the cured mold with warm water and soap before using. Addition cured silicone rubber may be inhibited by certain contaminants resulting in tackiness on the surface of the mold. Latex, sulfur based clays, tin cured silicone rubber, amines, nitriles, should be avoided. If you are unsure of the compatibility a small test is recommended. To prevent inhibition it can be helpful to coat the pattern with a clear acrylic lacquer.

We typically ship same day when orders are received by 2 pm EST Monday-Friday