BOSS® 368 Butyl Rubber Sealant

A one component skinning product for sealing standing seam roofs, flashings and side walls. Provides excellent adhesion to metal, asphalt, wood and masonry substrates.

  • Filling cracks and joints around HVAC ducts, pipes and vents
  • Excellent in sealing joints in sheet metal
  • Compatible with and suitable for use on polyurethane foam and extruded polystyrene

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