Permathane® SM7108 is a one component, gun-grade, non-sag, moisture-cure polyurethane sealant designed to skin and cure rapidly.


  • Accommodates 50% joint movement
  • Permanently flexible, superior weatherability
  • Easy to gun – Easy to tool
  • Cures to a tough, durable, elastic consistency with excellent cut and tear resistance
  • Paintable
  • Tack free after cure
  • Architectural sealant VOC compliant
  • Phthalate free
  • Primerless adhesion to substrates including galvanized steel, aluminum, concrete, glass, Galvalume®, Zincalume®, Kynar 500®, wood, vinyl, fiberglass, and most painted surfaces
  • Adheres to wet, nonporous substrates
  • Sealing in association with building/lath papers


  • 20 Oz. Sausage
  • 10.1 Oz. Cartridge


  • Black
  • Almond
  • White
  • Limestone
  • Gray
  • Bronze