RTV high-temperature lead-zinc alloy silicone rubber is designed specifically for manufacturing of metallic art crafts, especially for gold, silver, bronze, ironcrafts and molds. It features resistance to high temperature or some variety It is the most advanced RTV-2 high-temperature resistant material in China and the best option for lead-zinc alloy crafts. . Application: mold for resin or low melted alloy . Viscosity: 15,000 cps . Type: Two-component condensation type Typical properties (after cured): . Appearance: white . Specific Gravity: 1.22 g/cm3 . Durometer hardness: 60 (Shore A) . Tensile strength : 2.0 N/mm2 . Elongation : 120% . Tear strength : > 4 N/mm . Shrinkage: < 0.3% . Working time: 20 ~ 40 min/25oC . Released Time: 3 ~ 6 hr/25oC . Current Time: 24 hr/25oC . Harder available in 1kg or 0.7 kg.Harder dosage about 10%. Primary Competitive Advantages : Well and High Quality Control . Prompt Delivery .Competitive Prices. Fit for Gifts & Premiums. Small Order Acceptable. OEM Accepted