Platinum Silicone

Platinum Silicone

Platinum-Cured RTV Silicone Rubber for Long-Lasting, Zero-Shrink Molds

Silpak platinum-cured silicone rubber, also known as RTV silicone rubber, is formulated to cure without shrinkage and maintain performance over time. Compared to tin-activated systems, platinum silicone resists deterioration, helping molds stay accurate and consistent through repeated use. With strong chemical resistance, these silicone rubbers are a dependable choice for molds used to cast polyesters, polyurethanes (plastics, foams, and rubbers), epoxies, and other demanding materials.

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Zero Shrink Cure for Dimensional Accuracy

Produce molds that hold their shape and maintain detail over time.

When precision matters, shrinkage can compromise fit, alignment, and surface quality. Platinum-cured silicone rubber is designed to cure without shrinkage, supporting accurate mold geometry and reliable part replication for prototypes, production runs, and repeat casting.

 

Long-Term Mold Performance Compared to Other Systems

Durable silicone molds that resist aging and breakdown in real-world use.

Tin-activated silicone molds can degrade over time, especially in demanding shop conditions. Platinum silicone is engineered for stability, helping molds maintain flexibility and integrity so you can rely on consistent results across projects and over longer mold lifecycles.

 

Chemical Resistance for Casting Resins and Urethanes

Mold materials suited for polyesters, epoxies, and polyurethane plastics, foams, and rubbers.

Platinum silicone molds provide the chemical resistance needed for casting a range of resin systems, such as polyesters, epoxies, and polyurethane materials. This makes them a strong option for multiple casting processes and material types.