• High Expansion & Fireblock Formulated: Seals gaps up to 3 inches; resists flame spread through concealed spaces (UL Classified)
• Durable & Airtight: Forms a water-resistant barrier that helps block air, moisture, insects, and allergens
• Fast Cure Time: Tack-free in 3–10 minutes; trimmable within 1 hour
• Precision Dispensing: PRO foam gun delivers adjustable, no-drip bead control for cleaner application
• 30-Day Reusability: Can stays pressurized and usable for up to 30 days when attached to gun
• Easy Maintenance: Great Stuff™ Foam Cleaner simplifies cleanup of uncured foam and tool flushing
• Bright Orange Color: Enhances inspection visibility
• Paintable, Sandable & Stainable: Finish-ready after full cure
• Cost-Effective: 24–30 oz cans yield equivalent of 22–33 quart tubes of caulk

• Plumbing, pipe, and gas line penetrations
• Electrical wiring and conduit holes
• Rim joists and sill plate gaps
• Attic and HVAC system penetrations
• General building envelope sealing in new construction and retrofits

Common Substrates

• Wood framing
• OSB and plywood
• Concrete and masonry
• Metal (steel, aluminum)
• Glass and rigid plastics

Prep Area

• Clean surface of dust and debris
• Shake can vigorously for at least 60 seconds before use

Attach Can to Gun

• Screw can onto dispensing gun (do not overtighten)
• Open the gun valve to begin use

Apply Foam

• Pull trigger gently to dispense foam
• Fill gaps about 1/3 full—foam expands as it cures
• Adjust bead size using the gun’s flow control knob

Curing

• Tack-free in 3–10 minutes
• Trimmable in approximately 60 minutes
• Fully cured in 8–12 hours at 70°F / 50% RH

After Use

• Close gun valve to retain pressure in the can
• Clean nozzle and exterior with GREAT STUFF™ Foam Cleaner
• For storage beyond 30 days, detach can and flush gun with cleaner

Storage

• Store upright in a cool, dry place
• Do not expose cans to temperatures above 120°F (49°C)

Safety Tips

• Always wear gloves, long sleeves, and eye protection
• Use in a well-ventilated area
• Keep away from ignition sources and open flame
• Do not use in enclosed voids (e.g., behind walls)