Reynolds Advanced Materials
Since 1963

Mold Star® 20T

1A:1B Mix By Volume Platinum Silicone Rubber

Mold Star® 20T is an easy to use translucent platinum silicone that is mixed 1A:1B by volume (no weighing scale necessary) and features a relatively low viscosity (vacuum degassing is not required for most applications). Mold Star® 20T cures to a soft, strong and tear resistant rubber that exhibits very low long term shrinkage. Molds made with Mold Star® will last a long time in your mold library and are good for casting wax, gypsum, resins, concrete and other materials. Mold Star® 20T silicone can be thickened with Thi-Vex® thickener for brush-on application and effects. An infinite number of color effects can be achieved by adding Silc Pig® silicone pigments or Cast Magic® effects powders.


Subtotal: $0.00
ProductSizeNet WeightPriceQuantity
Mold Star 20T
1:1 by volume, Shore 20A, Pot Life: 6 min, Demold Time: 30 min
How Does It Work?
Look Closer Trial Unit 2 lbs. $32.22
Look Closer Gallon Unit 16 lbs. $164.52
Look Closer 5-Gallon Unit 80 lbs. $774.68

Technical & Safety

Technical Bulletin


Additional Documents

alertA release agent may be required to remove cured silicone rubber from glass, silicone, or some other surfaces. Many surfaces need to be sealed before applying silicone rubber.
alertThis material is not compatible with sulfur-based modeling clay.