description

Smooth-On Smooth-Sil™ Platinum Silicones cure at room temperature with negligible shrinkage. With different hardnesses to choose from, Smooth-Sil™ products offer tremendous versatility and are suitable for making production molds of any configuration, large or small. These silicones exhibit good chemical, abrasion and heat resistance. Materials such as plasters, concrete, wax, low-melt metal alloys or resins (urethane, epoxy or polyester) can then be cast into these silicone rubbers without a release agent.

Smooth-Sil™ Platinum Silicones are used for rapid prototyping, wax casting (foundries and candle makers), architectural restoration and for casting concrete. Smooth-Sil™ 950 is suitable for food-related applications.

Specifications

• Specific Gravity 1.24 g/cc
• Specific Volume 22.3 cu. in./lb.
• Color Blue
• Pot Life 45 minutes
• Cure Time 18 hours
• Mix Ratio By Weight 100A:10B
• Shore Hardness 50 A
• Tensile Strength 725 psi
• 100% Modulus 272 psi
• Elongation @ Break 320 %
• Die B Tear Strength 155 pli
• Shrinkage <.001 in. / in.
• Useful Temperature (min) -65 °F
• Useful Temperature (max) 450 °F
• Thermal Conductivity 0.261 W/M*K
• Mixed Viscosity 35,000 cps