BOSS® Product




BOSS® 333 Gap Filling Foam Straw Grade

  • Easy-to-use, multi-purpose urethane foam
  • Unlike ordinary sealants, it expands three times its original volume
  • Adheres to all building materials except PTFE, silicone and polyethylene
  • Seals by expanding into gaps, cracks and crevices
  • Uses include insulating, sealing and filling gaps around pipes, plumbing fixtures, ductwork and foundations
  • UL Classified
SDSTDS

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