Magikmold P-545 Platinum-Cure Silicone Rubber - 2.2-lb Kit

Magikmold P-545 Silicone Rubber is a platinum-cured, two-component silicone rubber compound designed for making flexible molds that require dimensional stability. Magikmold P-545 molds are commonly used to cast the following materials: Wax, Urethane (polyurethane), Plaster, Concrete, Epoxy Resin and Soap. This is a pourable rubber, but it can be easily thickened with silicone thickener (not included) for brush-on application. - PHYSICAL PROPERTIES - Type: Platinum-cured (addition-cure). Mix Ratio by Weight: 1 Part Catalyst : 10 Parts Base. Shore Hardness: A45. Pot Life: 40 min. Demold Time @ 77°F: 16 hr. Cured Color: Green. Mixed Viscosity: 30,000 cP. Specific Volume: 21.3 in³/lb. Specific Gravity: 1.3. Tensile Strength: 630 psi. Elongation: 600%. Die B Tear Strength: 150.0 pli. Die T Tear Strength: 75.0 pli.