Pouring Mold Star into a two part mould.
Mold Star Pourable Silicone
Mold Star Pourable Silicone
Mold Star Pourable Silicone
Mold Star Pourable Silicone
Mold Star Pourable Silicone
url:https://cdn.shopify.com/s/files/1/0361/6889/files/MOLD_STAR_15_16_30_TB.pdf?529|alt:Mold Star 15, 16 and 30 Technical Data Sheet

Mold Star Pourable Silicone

  • Smooth-On
  • From $79.99
    Unit price per 
  • Incl. GSTExcl. GST: $69.56

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Manufacturer Information

Mold Star 15, 16 and 30 Technical Data Sheet


Easy to Use Silicone Mold Rubber

Mold Star™ silicones cure to soft, strong rubbers which are tear resistant and exhibit 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. Cured Mold Star™ rubber is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys.

NOTE: This product will not work with modeling clays containing sulfur under any circumstances.

One to One Mix Ratio

Mold Star™ rubbers are mixed 1A:1B by volume (no weighing scale necessary) for precise measurements even at a very low mass and cure at room temperature with negligible shrinkage.

No Vacuum Degassing

Mold Star™ silicones feature relatively low viscosities making vacuum degassing optional and is not required for most applications. A uniform flow will help minimize entrapped air.

Translucent Options

Make Fast Cut Molds or Castings

Mold Star™ 19T, 20T, and 31T are translucent silicones for making fast molds or casting into alginate molds. They offer fast cure times, multiple hardnesses, and an infinite number of color effects achieved by adding Silc Pig™ silicone pigments or Cast Magic™ effects powders.

Mold Star - Safety Data Sheet (SDS)


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Customer Reviews

Based on 16 reviews
Peter Harris

Mold Star Pourable Silicone

Nigel Ogle
Tawhiti Museum review mold star silicone

I’ve used this product on a good range of projects now and I’m very satisfied with how it performs. Just get the price down and I’ll use it for bigger projects…!

anthony lindsay
Mold Star

Great product for the mold i made of old small plastic toy parts no longer available AAA

Maureen Callander
Pourable silicone

Fabulous product, did exactly as required

Norman Thomas

Mold Star Pourable Silicone