SIL Silicone Firestop Sealant
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).
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!