Selsil 310mL Red RTV Ductwork, Pipes and Gaskets High Heat Silicone Sealant

Item No. 27738
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The Selsil 310-mL RTV High Heat Silicone Ductwork, Pipes and Gaskets is for any application that requires a permanently flexible waterproof seal that will withstand moisture, heat and vibration. Fully cured, it can be used for extended periods at temperatures up to 260C (500F) and for shorter periods as high as 316C (600F). Exceeds ASTM C920 and ISO 11600:2002. It works as excellent adhesion to a variety of non-porous substrates such as Glazed Ceramic Tiles, Glass, Aluminum, masonry, concrete, metal, wood and most plastics.


  • One-component
  • Vibration Resistant
  • Solvent free
  • 12 minutes tack free
  • 25% joint movement +/-
  • Form permanently water-repellent layer after curing
  • Crackproof
  • Mold & Mildew resistant


Service Temperature-5 C to +260 C
MeetsASTM C920 and ISO 11600:2002