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STI leads the industry in developing innovative fire protection systems that help stop the spread of fire, smoke and hot gasses. For over 30 years, our team has worked hand in hand with the construction industry to create simple solutions to complex firestopping problems. Our SpecSeal and EZ Path product lines are engineered to deliver powerful performance. Because our system designs are user-driven, they are easier to apply. The result is simply designed, outstanding fire protection systems which often result in lower installed costs. STI products and systems offer innovative firestop solutions for all types of new construction and retrofit applications. Since firestopping is our only business, we concentrate all our resources on providing the highest quality, fully tested, innovative firestopping solutions.

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SmokeBlock

SpecSeal

SpecSeal® LC

SpecSeal® Fast Tack® Firestop Spray

SpecSeal® ES

SpecSeal® Safing Spray

SpecSeal® Smoke 'N' Sound Sealant

SmokeBlock® 200

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STI leads the industry in developing innovative fire protection systems that help stop the spread of fire, smoke and hot gasses. For over 30 years, our team has worked hand in hand with the constructi

STI Firestop - Fire Protection - Firestopping - Performance

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