Smooth-Sil 945

SKU: 799841

Size: Pint Kit
Sale price$52.69

unit(s) in Stock.


unit(s) in Stock.


unit(s) in Stock.

*Price and availability may vary.


Unit Size Net Weight
Pint Kit 2 lb
Gallon Kit 18 lb
Five Gallon Kit 90 lb



Smooth-On Smooth-Sil¨ 945 Platinum Silicone cures at room temperature with negligible shrinkage. Smooth-Sil 945 exhibits good chemical, abrasion and heat resistance. Materials such as plasters, concrete, wax, low-meltmetal alloys or resins (urethane, epoxy or polyester) can then be cast into Smooth-Sil 945 without a release agent. Smooth-Sil¨ 945 offers the convenience of a 1A:1B by volume mix ratio, 25 minute pot life, and a fast 6 hour cure time. Applications include rapid prototyping, wax casting (foundries and candle makers), architectural restoration and concrete casting.
Technical Properties
Mix Ratio by Weight 1A:1B
Mix Ratio by Volume 1A:1B
Pot Life 25 minutes
Cure Time 6 hours
Color Purple
Shore Hardness 45A
Mixed Viscosity 30.000 cps
Shrinkage < .001 in./in.
Specific Volume 22.3
Specific Gravity 1.24g/cc
Useful Temperature (max)< 450¼F
Useful Temperature (min)< -65¼F
Tensile Strength 700 psi
100% Modulus 260 psi
Elongation @ Break 320%
Die B Tear Strength 120 pli


Special Order Items
The products listed below are currently SPECIAL ORDER items and require pre order.
Lead times may vary - For more information please contact our staff.

799843 - Smooth-Sil 945 - Five Gallon Kit
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