Cast-A-Mold 30TF is faster and slightly harder than the Cast-A-Mold 25T. It is a general purpose rtv silicone elastomer which exhibits excellent tear strength, long library life, and accurate detail reproduction. Cast-A-Mold 30TF 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 30TF is extremely useful for applications where superior physical properties are required.
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| Mix Ratio | 10:1 by weight |
| Working Time | 15.0 minutes |
| Demold Time | 8 hours |
| Heat Tolerance | 300°F + |
| Tensile Strength | 600 psi |
| Elongation | 500% |
| Tear Resistance | 150 ppi |
| Color | Blue |
| Hardness | 30-A |
| Viscosity | 30,000 cps |
