mold star
Easy to Use Silicone Mold Rubber
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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, 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. 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. They feature relatively low viscosities making vacuum degassing optional and is not required for most applications. A uniform flow will help minimize entrapped air.
Highlights:
Highlights:
- Mold Star translucent series 14T, 19T, 20T, and 31T are certified Skin Safe, fast curing silicones for making molds or casting into alginate molds. They offer an infinite number of color effects achieved by adding Silc Pig™ silicone pigments or Cast Magic™ effects powders.
Important: Mold Star silicones are not compatible with: materials containing sulfur such as clays, latex, condensation or tin silicones, newly cast polyester, epoxy, some types of 3D printing materials and some metal alloys containing tin.

SELECT A PRODUCT BELOW | HARDNESS SHORE A | POT LIFE | CURE TIME | COLOR |
Mold Star 15 SLOW | 15 | 50 min. | 4 hrs | Green |
Mold Star 16 FAST | 16 | 6 min. | 30 min. | Blue-Green |
Mold Star 30 | 30 | 45 min. | 6 hrs | Blue |
Mold Star 14T | 14 | 3 min. | 9 min. | Translucent |
Mold Star 19T | 19 | 3 min. | 12 min. | Translucent |
Mold Star 20T | 20 | 6 min. | 30 min. | Translucent |
Mold Star 31T | 31 | 5 min. | 23 min. | Translucent |
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