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Smooth-Sil Series

Smooth-Sil™ 936, 940, 950 & 960 are mixed 100A:10B by weight and are ideal for production molds of any configuration, large or small. Our new Smooth-Sil™ 945 offers the convenience of a 1A:1B by volume mix ratio. These silicone rubbers exhibit good chemical, abrasion and heat resistance.  Smooth-Sil™ 936 is a lower viscosity platinum silicone rubber (21,000 cps). It is easier to mix, vacuum degas and pour. 

Smooth-Sil™ 940, 950 and 960 are suitable for food related applications. Cured Smooth-Sil™ 945 is skin safe and certified by an independent laboratory.

  1. Watch Video
    Smooth-Sil™ 936
    Smooth-Sil™ 936
    Shore A 36 platinum silicone rubber, 60 minute pot life and 24 hour cure time. 100A:10B Mix Ratio By Weight - Scale Required.
    Trial Size
    $42.44
    1 Gallon Unit
    $166.32
    5 Gallon Unit
    $653.66
    🞩
  2. Watch Video
    Smooth-Sil™ 940
    Smooth-Sil™ 940
    Shore A 40 platinum silicone rubber, 30 minute pot life and 24 hour cure time. 100A:10B Mix Ratio By Weight - Scale Required.
    Trial Size
    $42.75
    1 Gallon Unit
    $164.98
    5 Gallon Unit
    $645.51
    🞩
  3. Watch Video
    Smooth-Sil™ 945
    Smooth-Sil™ 945
    Shore A 45 platinum silicone rubber, 25 minute pot life and 6 hour cure time. 1A:1B Mix Ratio By Volume.
    Trial Size
    $36.64
    1 Gallon Unit
    $268.69
    5 Gallon Unit
    $1,063.88
    🞩
  4. Watch Video
    Smooth-Sil™ 950
    Smooth-Sil™ 950
    Shore A 50 platinum silicone rubber, 45 minute pot life and 18 hour cure time. 100A:10B Mix Ratio By Weight - Scale Required.
    Trial Size
    $42.86
    1 Gallon Unit
    $166.99
    5 Gallon Unit
    $658.82
    🞩
  5. Watch Video
    Smooth-Sil™ 960
    Smooth-Sil™ 960
    Shore A 60 platinum silicone rubber, 45 minute pot life and 16 hour cure time. 100A:10B Mix Ratio By Weight - Scale Required.
    Trial Size
    $42.50
    1 Gallon Unit
    $167.97
    5 Gallon Unit
    $655.76
    🞩

Quick Tech Specs

Smooth-Sil™ 936

  • Mix Ratio By Weight 100A:10B
  • Pot Life 60 minutes
  • Cure Time 24 hours
  • Shore Hardness 36 A
  • Color Blue

Smooth-Sil™ 940

  • Mix Ratio By Weight 100A:10B
  • Pot Life 30 minutes
  • Cure Time 24 hours
  • Shore Hardness 40 A

Smooth-Sil™ 945

  • Mix Ratio By Weight 1A:1B
  • Pot Life 25 minutes
  • Cure Time 6 hours
  • Shore Hardness 45 A

Smooth-Sil™ 950

  • Mix Ratio By Weight 100A:10B
  • Pot Life 45 minutes
  • Cure Time 18 hours
  • Shore Hardness 50 A

Smooth-Sil™ 960

  • Mix Ratio By Weight 100A:10B
  • Pot Life 45 minutes
  • Cure Time 16 hours
  • Shore Hardness 60 A

Videos

How-to videos can educate and improve your mold making skills.

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