Great Stuff Big Gap Filler Insulating Foam Sealant - 12 oz

Big gaps call for big seals. Great Stuff Big Gap Filler Insulating Foam Sealant fills, seals and insulates larger gaps, providing a water-resistant barrier to help minimize unwanted airflow and improve energy efficiency in high-loss areas. This ready-to-use sealant is specially formulated to take on common areas of energy loss such as rim joists/sill plates, plumbing, HVAC, and other larger penetrations.

Features

• Expands to fill, seal, and insulate gaps up to 3" (76mm)
• Smart Dispenser provides precision, control, reusability
• Forms a long-lasting, airtight, weather-resistant seal
• Adheres to wood, metal, masonry, glass and most plastics
• All-direction dispensing.
• Interior/exterior use¹
• Tack-free in 5-15 min²; trimmable in one hr.
• Paintable, stainable and sandable
• Cream-colored foam

¹Skin of cured foam can discolor if exposed to natural light. Paint or coat foam for the best results.

²70 ± 5°F and 50 ± 5 % RH, 1" bead diameter, 6" length. The cure rate is dependent on temperature, humidity, and size of the foam bead.

Directions

• Shake vigorously for a minimum of 60 seconds. If the can sputters, simply shake the can while held upside down
• Any uncured product that gets on the skin can be removed with acetone
• Best results if used when product temperature ranges from 60-90°F (15-32°C). Optimal 75°F (23°C). The can should not be exposed to temperatures more than 120°F. Cured foam should not be exposed to temperatures in excess of 240°F
• Firmly screw straw assembly onto valve and dispense SLOWLY
• Fill gaps<50%
• Mist with water to speed cure
• Trim cured foam with serrated blade
• Not to be used for filling closed cavaties or voids. Not for use in aviation, or food/beverage contact, or as structural supprt in marine applications
• If product does not flow easily, do not force product from can
• If applied outdoors, be sure to paint or cover foam to prevent discoloration and UV damage
• Check for expiration date on the bottom of the can as product may not dispense after date displayed

For Great Stuff Smart Dispenser, Follow These Additional Steps Before Application

Great Stuff cans featuring the Smart Dispenser may be reused up to 30 days with the straw left attached to the canister, just clean the tip after your first use.

For Best Results

• Thread the Smart Dispenser onto the valve until it is secure, ensuring there is no gap between the dispenser and the valve
• Do not unwind the dispenser after you have started using it
• Let up on the trigger slowly to release pressure in the straw and prevent spurts during the next use and to achieve the most consistent bead

Specifications

• Size: 12 oz
• Form: Foam
• Certification: UL Classified

Safety Data Sheet.pdf