liquid Silicone rubber

Specifications Silicone rubber Features:1) Low linear shrinkage 2)Good operation 3) high tear strength 4)curing agent for free 5)Easy de-mold Sell Silicone rubber for plaster /gypsum moulding (Tin catalyst series) Silicone rubber HY-638 application: Silicone RTV (HY-638 ) is two parts condensation liquid silicone rubber that can be cure under room temperature. silicone rubber mainly used for the manufacturer of products made of unsaturated resin, epoxy resin, polyurethane, etc. Silicone rubber(HY-638) features: HY-638# silicone rubber is mainly with the advantages of good tensile strength, high tear strength, high temperature resistance, high duplication times and repeated use, etc. Silicone rubber(HY-638) is the most suitable for small products or fine and precision products which is difficult to demould. This silicone rubber is one of the products with the highest use level in the production of craftwork gifts and the shrinkage less than 0.2%. Silicone rubber(HY-638) datasheet : Model Appearance Viscosity (cs) Hardness (Ao) Tensile Strength (kgf/c) Tear Strength (kgf/) Elongation (%) Mixing ratio(%) Operating Time(H) Curing Time(H) 638 White *~* 25~28 ≥35 ≥25 ≥500 2~3 0.5 2~4 Silicone rubber (HY-638 RTV-2) instruction: 1. Adding curing agent 1%, the silicone can still be operated within 2.5 hours and can be demoulded after 6-8 hours. 2. Adding curing agent 2%, the silicone can still be operated within 50 minutes to 1 hour and can be demoulded after 2-3 hours. 3. Adding curing agent 3%, the silicone can still be operated within 28 - 30 minutes and can be demoulded after 1.5-2 hours. 4. Adding curing agent 4%, the silicone can still be operated within 10 - 15 minutes and can be demoulded after 1 -1.5 hours. Frequently asked questions of moulding silicone rubber Why does the silicone rubber mold have few molding times? The silicone rubber mold has few molding times is due to fo....

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