Specialty Resin & Chemical
Superior Casting Resins and RTV Silicone Rubber
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 usefull for applications where superior physical properties are required.

Product: Cast-A-Mold 25T
Mix Ratio: 10:1 by weight
Working Time: 3.0 hours
Demold Time: 16 hour
Heat Deflection: 300 f +
Tensile Strength, psi: 580
Elongation %: 380
Tear Resistance, ppi: 150
Color: Green
Hardness: A-25
Viscosity: 30,000 cpds





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 usefull for applications where superior physical properties are required.

Product: Cast-A-Mold 30TF
Mix Ratio: 10:1 by weight
Working Time: 45.0 minutes
Demold Time: 5 hour
Heat Deflection: 300 f +
Tensile Strength, psi: 580
Elongation %: 370
Tear Resistance, ppi: 115
Color: Blue
Hardness: A-30
Viscosity: 30,000 cpds





Cast-a-Mold thixotropic additive is a one to three percent by weight additive that is specifically formulated for brush on molding. After mixing into Cast-A-Mold silicone rubber the material will thicken to a creamy paste that can easily be brushed on to vertical or overhead surfaces without sagging or running. A thin layer of non-thixotropic silicone should be applied first to capture detail and achieve a bubble free surface


RTV SILICONES
Cast-A-Mold 25T
Cast-A-Mold 30TF

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Thixotropic Additive

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