Smooth-Sil 940 Platinum Silicone cures at room temperature with negligible shrinkage. This Food Safe Silicone is popular with making ice trays, chocolate molds and more! 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 be cast into these silicone rubbers without a release agent.
Data At-A-Glance
Specific Gravity |
1.18 g/cc |
Specific Volume |
23.4 cu. in./lb. |
Color |
Pink |
Pot Life |
30 minutes |
Cure Time |
24 hours |
Mix Ratio By Weight |
100A:10B |
Shore Hardness |
40 A |
Tensile Strength |
600 psi |
100% Modulus |
200 psi |
Elongation @ Break |
300 % |
Die B Tear Strength |
100 pli |
Shrinkage |
<.001 in. / in. |
Useful Temperature (min) |
-65 °F |
Useful Temperature (max) |
450 °F |
Mixed Viscosity |
35,000 cps |