STI Firestop

Specseal Silicone Sealant

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As low as $17.03
Financing Available for orders over $1,000
SpecSeal® SIL300 Silicone Sealant is a high performance silicone firestop sealant tested to resist the passage of smoke, flame and water through construction joints and through-penetrations. SIL300 Sealant cures to form a flexible seal and carries a Class 1 W Rating for water resistance (Per ANSI/UL1479).
More Information
Manufacturer STI Firestop
Product Sheet (496.24 kB)
Safety Sheet (152.74 kB)
Available in a Gun Grade or Self Leveling

Ozone and UV Resistant

Excellent recovery from joint extension and compression

Listed in over 175 UL® Tested Systems!