BOSS® 350
Duct Sealant


BOSS® 350
Duct Sealant


A high performance duct sealant designed for use in high, medium or low velocity heating and air conditioning systems. Provides excellent strength, flexibility and resistance to heat and cold, forming a seal against air leakage.


  • Paintable
  • VOC compliant
  • Water cleanup


Packaging Types

  • 10.1 oz. Cartridge

Technical Information