Smooth-Sil™ Series

The Smooth-Sil™ Series offers versatile platinum-cure silicone rubbers for mold making, prototyping, and industrial production. Available in various Shore hardnesses, they provide excellent tear strength, low viscosity, and fine detail capture, with minimal shrinkage and heat resistance. Many are food-safe for culinary use.
Available in Smooth-Sil™ Series
Product Cure Time Shore A Hardness Specific Gravity Specific Volume Color Tensile Strength Shrinkage Elongation At Break Hundred Percent Modulus Die B Tear Strength Useful Temperature Min Mixed Viscocity Mix Ratio By Weight Pot Life Hundred Percent Modulus Color Die B Tear Strength Mixed Viscocity Useful Temperature Min Cure Time Pot Life Specific Volume Specific Gravity Mix Ratio By Weight Shrinkage Tensile Strength Elongation At Break Shore A Hardness Thermal Conductivity Thermal Conductivity Mix Ratio By Volume Mix Ratio By Volume
Smooth-Sil™ 940 24 h. 40 1.18 g/cc 23.4 cu. in./lb. Pink 600 psi <.001 in. / in. 300 % 200 psi 100 pli -65 °F 35,000 cps 100A:10B 30 min. 200 psi Pink 100 pli 35,000 cps -65 °F 24 h. 30 min. 23.4 cu. in./lb. 1.18 g/cc 100A:10B <.001 in. / in. 600 psi 300 % 40 - - - -
Smooth-Sil™ 950 18 h. 50 1.24 g/cc 22.3 cu. in./lb. Blue 725 psi <.001 in. / in. 320 % 272 psi 155 pli -65 °F 35,000 cps 100A:10B 45 min. 272 psi Blue 155 pli 35,000 cps -65 °F 18 h. 45 min. 22.3 cu. in./lb. 1.24 g/cc 100A:10B <.001 in. / in. 725 psi 320 % 50 0.261 W/M*K 0.261 W/M*K - -
Smooth-Sil™ 960 16 h. 60 1.25 g/cc 22.2 cu. in./lb. Green 650 psi <.001 in. / in. 270 % 280 psi 110 pli -65 °F 30,000 cps 100A:10B 45 min. 280 psi Green 110 pli 30,000 cps -65 °F 16 h. 45 min. 22.2 cu. in./lb. 1.25 g/cc 100A:10B <.001 in. / in. 650 psi 270 % 60 - - - -
Smooth-Sil™ 945 6 h. 45 1.24 g/cc 22.3 cu. in./lb. Purple 700 psi <.001 in. / in. 320 % 260 psi 120 pli -65 °F 30,000 cps 1A:1B 25 min. 260 psi Purple 120 pli 30,000 cps -65 °F 6 h. 25 min. 22.3 cu. in./lb. 1.24 g/cc 1A:1B <.001 in. / in. 700 psi 320 % 45 - - 1A:1B 1A:1B
Smooth-Sil™ 936 24 h. 36 1.21 g/cc 22.9 cu. in./lb. Blue 550 psi <0.001 in. / in. 500 % 180 psi 110 pli -65 °F 21,000 cps 100A:10B 60 min. 180 psi Blue 110 pli 21,000 cps -65 °F 24 h. 60 min. 22.9 cu. in./lb. 1.21 g/cc 100A:10B <0.001 in. / in. 550 psi 500 % 36 - - - -

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