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RTV Silicone Rubber

RTV Silicone Rubber

Room Temperature Vulcanizing

A pourable mold rubber that vulcanizes at room temperature without pressure, Contenti RTV Silicone is a 0% shrinkage, condensation (tin) cure rubber that cures in 16 hours. While this rubber can render a wax pattern of exceptional detail, it can also withstand the casting temperature of most tin alloys, making it an ideal medium for prototype casting. A two-part mold can be made by pouring mold halves on successive days. When you need to reproduce a pattern that cannot withstand the heat and stress of vulcanization, RTV Silicone is the ideal mold rubber. Furnished in 1 lb. cans or 48.5 lb. pails. Activator packaged separately. 28 durometer.

  • Specific Gravity 1.11
  • Hardness 28 Shore A
  • Tensile Strength 670 ppi (4.6 N/mm2)
  • Elongation 480 %
  • Tear Resistance 140 ppi (24.6 N/mm)
  • Linear Shrinkage 0.2% (24 hours) / 0.4% (7 days)
Lower Price Date Item No. Description Price Qty
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179-050 1 lb. silicone and activator
  • (12 or more) $26.84
179-054 48.5 lbs silicone and activator