Cast-a-Mold 25T

Made in the USA

When you buy from SRC, you'll receive fresh American-made materials every time, direct from the source.

Cast-a-Mold 25T is a general purpose silicone with excellent tear strength. It's easy to mix and will cure at room temp over virtually any surface.

Regular price $24.99
Regular price Sale price $24.99
Shipping calculated at checkout.
Size: 16 oz 1.1 lbs
Regular price $24.99
Regular price Sale price $24.99
Cast-A-Mold 25T is a general purpose rtv silicone elastomer which exhibits excellent tear strength, long library life, and accurate detail reproduction. Cast-A-Mold 25T is a condensation cured silicone (tin catalyzed ) It is used to make rubber molds that can be used to cast polyurethanes, epoxy's, polyester's, cement, concrete, soap, wax, plaster, etc.. It is easy to mix and de-air, and will cure at room temperature over virtually any surface. Cast-A-Mold 25T is extremely useful for applications where superior physical properties are required.
Mix Ratio 10:1 by weight
Working Time 1.0 hour
Demold Time 16 hours
Heat Tolerance 300°F +
Tensile Strength 600 psi
Elongation 500%
Tear Resistance 150 ppi
Color Green
Hardness 25-A
Viscosity 30,000 cps

Customer Reviews

Based on 14 reviews
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S
Stephen Wolff

Good product overall. The detail recovery is exceptional.
I would like the tear strength to be a bit better, though.

M
Mike Dawson
Dinosaur claws and teeth

Just made some great utahraptor and velociraptor claws.

J
Jose
Excellent Silicone - long working time

I strongly recommend you vacuum degas it. But it can be used without this process it on low-detail models. Very flexible. long lasting, I've got some molds with over 40 castings and still strong.

j
janice
Cast a Mold

Great product. Easy to use. No bubbles, lots of work time.

J
Jeff
Cast A Mold 25T

Great rubber. Easy to mix and use. Become my go to rubber for production molds.