STI is the industry leader in developing innovative fire protection systems that help stop the spread of fire, smoke and hot gases to protect Life and Property. For over 30 years, our team has worked closely with the construction industry to develop simple solutions to complex and continuously evolving firestopping for all types of new construction and retrofit applications.

STI SpecSeal® and EZ Path® Fire Rated Pathway product lines are innovative firestop solutions that are easier to apply and engineered to deliver outstanding fire protection performance.

Since firestopping is our only business, we concentrate all our resources on engineering excellence to provide the highest quality, fully tested, innovative firestopping solutions backed by STI’s readily accessible Engineering Service Team and Field Representatives to help you achieve code compliance and optimize productivity.