Pro Sil 35A Silicone Rubber delivers high detail mold making performance with precision and ease. As a platinum catalysed, addition curing silicone, it cures evenly and cleanly—making it ideal for professional and educational applications. Since it’s translucent, you can easily monitor embedded details and cut lines during the process. Furthermore, it captures fine textures and sharp edges with impressive accuracy.

To use, simply mix Part A and Part B at a 1:1 ratio by weight. Then stir thoroughly and pour in a steady stream to minimize bubbles and ensure a smooth finish. Thanks to its versatile formulation, you can apply Pro Sil 35A in resin, wax, and chocolate mold making, as well as in prototyping, special effects, and polymer chemistry kits.

Additionally, the silicone offers excellent tear resistance and low shrinkage (<0.1%), allowing you to demould after 6–8 hours at room temperature. Although vacuum degassing is optional, it enhances clarity and reduces trapped air. For brush-on molds, you can add RTV Thixo thickener for better control.

Importantly, avoid contamination from tin cure silicones, PVC plasticizers, or sulfur based compounds, as these may inhibit curing. Ultimately, Pro Sil 35A combines flexibility, precision, and food-safe performance—perfect for artists, educators, and industrial designers seeking reliable, professional results.

Other products you may be interested in:

Foodsil Food Safe Silicone Rubber – AMT – Crafty Arts

Pure Sil 20 – 1.03kg – for casting polyester resins

Pure Sil 30 – 1.03kg – Crafty Arts