Smooth-Sil™ 940

SS940x ⓘ 0329605B-26C5-3247-A131-F2257602E554
Platinum Cure Silicone

Food-safe and durable platinum-cure silicone rubber with Shore 40A hardness.

  • Food-safe certification
  • Pot life: 30 minutes
  • Demold time: 24 hours
  • Low viscosity for easy mixing
  • High tear strength
€ 196.18

(€ 162.13 without 21% VAT)

In stock

Description

This platinum-cure silicone rubber is known for its durability, flexibility, and stability. With a Shore 40A hardness, it creates firm yet resilient molds suitable for extensive production runs. Its low viscosity facilitates easy mixing and pouring, capturing fine details with minimal bubbles.

The silicone cures with virtually no shrinkage, ensuring accurate and repeatable results for applications such as resin casting, architectural elements, prototyping, special effects components, and high-precision industrial molds. It boasts outstanding tear strength and excellent resistance to heat, chemicals, and mechanical stress, making it ideal for demanding workflows.

Once fully cured, it is certified food-safe, expanding its use to culinary molding, chocolate, specialty baking, and custom food presentation. The silicone can be thickened for brush-on applications or modified with pigments and additives to meet specific project needs. Reliable and versatile, it is a trusted choice for creating strong, long-lasting molds with consistent, high-quality detail reproduction.

Instructions

  • Measure equal parts of Part A and Part B by weight or volume, then mix thoroughly, scraping the sides and bottom until fully uniform. 
  • Its low viscosity allows easy pouring, but vacuum degassing is recommended for best detail. 
  • Pour slowly into the mold box from one point to reduce air bubbles. 
  • Allow curing at room temperature without disturbance. 
  • Demold after full cure and allow the mold to rest before use. 
  • Ensure all surfaces are clean and free of sulfur or contaminants.
  • Shore Hardness: 40A
  • Pot Life: ~30 minutes
  • Cure Time: ~24 hours

Specifications

Hundred Percent Modulus 200 psi
Color Pink
Die B Tear Strength 100 pli
Mixed Viscocity 35,000 cps
Useful Temperature Min -65 °F
Cure Time 24 hours
Pot Life 30 minutes
Specific Volume 23.4 cu. in./lb.
Specific Gravity 1.18 g/cc
Mix Ratio By Weight 100A:10B
Shrinkage <.001 in. / in.
Tensile Strength 600 psi
Elongation At Break 300 %
Shore A Hardness 40
Available in Platinum Cure Silicone
Product Cure Time Shore A Hardness Specific Gravity Specific Volume 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 Mix Ratio By Volume Mix Ratio By Volume Thermal Conductivity Thermal Conductivity
Smooth-Sil™ 936 24 h. 36 1.21 g/cc 22.9 cu. in./lb. 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 - - - -
Smooth-Sil™ 940 24 h. 40 1.18 g/cc 23.4 cu. in./lb. 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™ 945 6 h. 45 1.24 g/cc 22.3 cu. in./lb. 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™ 950 18 h. 50 1.24 g/cc 22.3 cu. in./lb. 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. 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 - - - -

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