Cast-a-Mold 30TF
Made in the USA
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 30TF, faster and slightly harder than Cast-a-Mold 25T, with excellent tear strength and gives accurate detail reproduction.
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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.
| 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 |
Excellent molding compound. Takes fine detail very well. Very happy with how even with slight under cuts I can still extract nice castings without mold tear out. Easy to use and it has adequate work time. Very fine product.
Thick but does a good job. Seems like the molds themselves are very heavy duty.
The Cast-a-Mold 30TF is my best choice item to use.
Great Product. As Said.
Great Mold material for smaller molds as it has a short working time (15 minutes). For big molds this will have to be poured in multiple batches because of the short work time. It's quite thick and might cause some problems with narrow undercuts if poured to quickly. It is virtually bubble free once cured no degassing necessary.
