STI Firestop

STI leads the industry in developing innovative fire protection systems that help stop the spread of fire, smoke and hot gases. For over 25 years, our team has worked hand in hand with the construction industry to create simple solutions to complex firestopping problems.

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Sealants and Adhesives

  1. STI Firestop - Intumescent Firestop Red Fire Caulk - 20oz Sausage
    STI Firestop - Intumescent Firestop Red Fire Caulk - 20oz Sausage $16.63
  2. STI Firestop - 20oz Sausage Tubes (WHITE)
    STI Firestop - 20oz Sausage Tubes (WHITE) $13.73
  3. STI Firestop - Intumescent Wrap Strip 2" x 1/8" x 12" (BLUE)
    STI Firestop - Intumescent Wrap Strip 2" x 1/8" x 12" (BLUE) $111.77
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Sprays and Collars

  1. STI Firestop - FastTack Spray 5Gal. Pail (RED)
    STI Firestop - FastTack Spray 5Gal. Pail (RED) $418.12
  2. STI Firestop - Smoke and Sound Sealant (WHITE)
    STI Firestop - Smoke and Sound Sealant (WHITE) $4.52
  3. STI Firestop - Elastomeric Spray 5Gal. Pail
    STI Firestop - Elastomeric Spray 5Gal. Pail $181.05
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