STI SpecSeal SIL 20 oz Sausage Tube Silicone Firestop Sealant SIL320

SpecSeal SIL Silicone Firestop Sealant is a one-part, neutral-curing silicone sealant exhibiting superior performance in applications where sealing openings in walls and floors are needed to control the spread of fire, smoke, toxic gasses, and water during fire conditions. SpecSeal SIL Silicone Firestop Sealant reacts with atmospheric moisture to form a high-strength, durable seal that will adhere to most building substrates without the use of primers. SpecSeal products do not contain asbestos or PCBs. BASIC USES: SpecSeal SIL Silicone Firestop Sealant is designed for use in firestop systems for through penetrations and joints. This product excels in applications where greater water resistance is required. Systems have been tested for Class 1 W Ratings per UL1479. SpecSeal SIL Silicone Firestop Sealant is available in non-sag (SIL300) and selfleveling (SIL300SL) grades and may also be used to seal vertical and horizontal joints between metals, masonry, concrete and other common construction materials. SpecSeal SIL Silicone Firestop Sealant is specially designed for use in static or dynamic joints. The low modulus characteristic minimizes strain on the substrate surface and the elastomeric quality allows excellent recovery from extension and compression cycling.

• Low modulus allows dynamic movement in joints
• Non-halogenated
• Auto bonding allows fresh sealant to adhere to cured sealant
• Excellent water resistance for water-tight sealing; including class 1 W ratings (UL1479)
• Ozone and UV resistant for excellent weathering ability and long service life
• Excellent chemical resistance protects in polluted or corrosive atmospheres
• Excellent adhesion to most building substrates
• Excellent smoke seal
• Neutral cure
• Safe, no asbestos, no PCB’s, no inorganic fibers
• Meets LEEDTM v3, v4, & v4.1 requirements. Low emitting materials credit. See general LEED letter for additional applicable credits

• ASTM C920
• ASTM E90
• ASTM E119 (UL263)
• ASTM E814 (UL1479)
• ASTM E1966 (UL2079)
• ASTM G21
• CAN/ULC-S115

• Blank Openings
• Busway
• Cable Tray
• Metallic Pipe
• Multiple Penetration
• Wall-to-Wall
• Head-of-Wall
• Floor-to-Floor
• Floor-to-Wall
• Bottom-of-Wall

• Permanent
• Autobonding
• Flexible
• Joint Movement
• Low VOC
• STC Rating
• Water Resistant
• Smoke Barrier
• Silicone

• Consistency: Trowelable
• Density/(Weight per Gallon): 11.6 lbs/gal
• Viscosity: 1,200,000 cps
• Storage Temperature: Less than 80°F (27°C)
• Application Temperature: 35°F (-37°C) to 140°F (60°C)
• VOC Content: 20 g/L*
• Tooling Time: 25 to 30 minutes
• Tack Free, ASTM C679 (77°F, 50%RH): 3 to 4 hours