TAP Platinum Silicone Mold Making Rubber

Ultra-Flexible, Bubble-Free, Platinum-Cure Silicone for Mold Making

TAP Platinum Silicone is a revolutionary two-part, platinum-cure RTV silicone that combines professional-grade quality with unmatched ease of use. Designed for high-detail mold making, it features an ultra-low viscosity formula that mixes easily, pours smoothly, and self-degasses—no vacuum chamber required.

With a soft Shore A8 hardness, this silicone is incredibly flexible, making it ideal for molds with deep undercuts, delicate features, or complex geometries. Its translucent finish allows you to see the master model during pouring, helping ensure complete coverage and precision.

Why Choose TAP Platinum Silicone?

✔ One-to-One Mix Ratio – No scale required; just mix equal parts of A and B
✔ Super Low Viscosity – Easy to pour and self-levels; no vacuum needed to remove air bubbles
✔ Fast Cure Time – Demold in as little as 2 hours; full cure in 24 hours
✔ High Tear Strength & Dimensional Stability – Long-lasting molds for production runs
✔ Excellent Chemical Resistance – Compatible with polyester, epoxy, polyurethane, and plaster resins
✔ No Mold Release Needed – Non-stick surface eliminates the need for additional sprays in most applications
✔ Crystal-Clear Cast Compatibility – Polyester resins like TAP Clear-Lite cure without tackiness or surface defects

Perfect for These Applications:

• Block molds, brush-on molds, and 2-part molds

• Intricate resin castings and reproduction of fine detail

• Mold making for models, prototypes, and sculptures

• Cushioning and sound dampening parts

• Transparent and clear resin jewelry or art pieces

• Prosthetics, orthotics, and flexible production parts

Block Mold or Brush-On?

Create full block molds for strength and simplicity—or save time and material with brush-on molds, which use up to 60% less silicone. Add Thixotropic Additive for vertical or brush applications to thicken the silicone like peanut butter and maintain coverage on uneven surfaces.

Mixing & Coverage:

• Mix by volume: 1:1 ratio (no scale needed)

• Use plastic or metal tools for best results (avoid wood/paper)

• Yields approx. 15 fl oz per pound—that’s 20% more than standard tin-cure RTV silicones

Whether you're casting resin, creating custom molds, or duplicating detailed models, TAP Platinum Silicone offers the ultimate combination of performance, flexibility, and ease of use. It's the top choice for DIYers, artists, prop makers, engineers, and professional mold makers alike.