Magikmold® P-540T Translucent Platinum Cure Silicone Rubber

Magikmold® P-540T is a platinum-cured, room temperature curing (RTV), translucent silicone rubber designed for the manufacture of high-performing, flexible molds. This two-part (Catalyst & Base), liquid silicone rubber has a Shore Hardness of A40, a pour time of 90 minutes, and a demold time of 24 hours. Magikmold® P-540T molds are commonly used to cast the following materials: Urethane (polyurethane) plastic and rubber Plaster Polyester Casting Resin Cement, Concrete Epoxy Soap Wax Low-Melt Metals Release agent is not necessary for casting most materials into Magikmold® P-500 Series molds, but for longer mold life with epoxy, polyurethane or polyester resins, a barrier coat or release agent (e.g., Stoner E-236 Urethane Mold Release) is recommended. This is a pourable rubber, but it can be easily thickened with silicone thickener for brush-on application. FOR INDUSTRIAL/PROFESSIONAL USE ONLY.    Physical Properties Type Platinum-cured (addition-cure) Mix Ratio by Weight 1 Part Catalyst : 10 Parts Base Shore Hardness A35 – A40 Pour Time 90 min. Demold Time @ 77°F 24 hr. Cured Color Translucent Mixed Viscosity 38,000 cP Specific Volume 26.6 in³/lb Specific Gravity 1.04 Tensile Strength 438 psi Elongation 296 % Die B Tear Strength 98.6 pli Die T Tear Strength 32.9 pli CURE INHIBITION: Contamination from amines, sulfur, tin compounds, polyester resins, some paints and some silicone rubbers may inhibit surface cure of this product. Perform a test cure on an identical surface to determine that complete curing and good release are obtained. Product Literature Technical Bulletin: Magikmold® P-500 Series Technical Data Sheet Safety Data Sheet: Magikmold® P-540T Catalyst | Magikmold® P-540T Base