Durable Platinum Silicone Rubber – Sil-Craft Elastomers

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Discover Sil-Craft 820 Platinum Cure Liquid Silicone - exceptionally pure with high tear strength. Perfect for crafting platinum silicone molds.
Sil-Craft 820 is a two-part platinum liquid silicone with low viscosity, high tear strength, and excellent durability. Sil-Craft 820 is a soft (shore A-20), platinum cure liquid silicone that has excellent flow properties, allowing it to reproduce fine details of the original master accurately. Molds are highly flexible and elastic, making it easy to remove the original model without damaging the mold or the casting. Applications Sil-Craft 820 is ideal for casting the following materials: Wax Resin Concrete Gypsum Plaster Soap Platinum Silicone Rubberand more Sil-Craft 820 is very durable, ensuring that each mold yields the maximum number of castings. By using a mold release, you can significantly extend the life of your molds. Additional Effects Sil-Craft 820 is translucent but can easily be pigmented to create a number of special effects, or brushed on to your mold by adding a few drops of thickener. Handling Recommendations Working (mixing) time is a comfortable 30-40 minutes, and the mix ratio is 1:1 by weight, so please have a gram scale ready. Vacuum degassing the material before pouring is required. Demold time is 3-4 hours. Sil-Craft 820 is heat resistant up to 400°F (204°C). Post curing with heat (optional) will decrease curing time and enhance the mechanical properties of the silicone. Get a Sample Find out how Sil-Craft 820 looks and feels before you start your project. To get a cured sample of our mold making silicone, choose the Cured Sample option from the Products menu above. You'll only need to cover the shipping and handling fee of $9.95. Detailed Guidelines For detailed guidelines and instructions for storing, mixing, degassing, pouring, and curing Sil-Craft 820, see Mixing Silicone Rubber: Best Techniques. Technical Details Technical Data Sheet (TDS) FOR INDUSTRIAL/PROFESSIONAL USE ONLY.