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Smooth-On Mold Star 20T Silicone Mold Making Rubber - Trial Unit 2 lbs

Smooth-On Mold Star 20T Silicone Mold Making Rubber - Trial Unit 2 lbs

$ 20.69

Availability: 37 in stock
  • Condition: New
  • All returns accepted: ReturnsNotAccepted
  • Handmade: No
  • Country/Region of Manufacture: United States
  • Brand: Smooth-On
  • Model: Mold Star 20T
  • Custom Bundle: No
  • MPN: Does Not Apply
  • Modified Item: No

    Description

    Smooth-On Mold Star 20T
    Size: Trial Unit 2 lbs / 2 Pints
    Description
    Mold Star 20T is an easy to use Shore 20A translucent platinum silicone that is mixed 1A:1B by volume (no weighing scale necessary). It features a relatively low viscosity and vacuum degassing is not required for most applications. Pot life is 6 minutes and cure time is 30 minutes at room temperature..
    Mold Star 20T cures in to a soft, strong rubber that is tear resistant and exhibits very low long term shrinkage. Molds made with Mold Star will last a long time in your mold library and are good for casting wax, gypsum, resins, concrete and other materials. An infinite number of color effects can be achieved by adding Silc Pig silicone pigments.
    Mold Star 20T is heat resistant up to 450F (232C) and is suitable for casting low-temperature melt metal alloys.
    Note: This product will not cure against surfaces containing sulfur, even when sealed.
    Mix Ratio By Volume
    1A:1B
    Mix Ratio By Weight
    1A:1B
    Specific Gravity
    1.08 g/cc
    Specific Volume
    25.6 cu. in./lb.
    Pot Life
    6 minutes
    Cure Time
    30 minutes
    Color
    Translucent
    Shore Hardness
    20 A
    Tensile Strength
    420 psi
    100% Modulus
    47 psi
    Elongation @ Break
    740 %
    Die B Tear Strength
    90 pli
    Shrinkage
    <.001 in. / in.
    Mixed Viscosity
    11,000 cps