|Mixed Viscosity||30,000 cps|
|Mix Ratio By Volume||1A:1B|
|Mix Ratio By Weight||1A:1B|
|Pot Life||25 minutes|
|Cure Time||6 hours|
|Shore A Hardness||45|
|Specific Gravity||1.24 g/cc|
|Specific Volume||22.3 cu. in./lb.|
|Die B Tear Strength||120 pli|
|Tensile Strength||700 psi|
|Elongation @ Break||320 %|
|100% Modulus||260 psi|
|Shrinkage||<.001 in. / in.|
|Useful Temperature (min)||-65 °F|
|Useful Temperature (max)||450 °F|
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™ 945 offers the convenience of a 1A:1B by volume mix ratio and a fast 6 hour cure time.
Smooth-Sil™ Platinum Silicones are used for rapid prototyping, wax casting (foundries and candle makers), architectural restoration and for casting concrete.