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12Oz Great Stuff Insulat Foam
12Oz Great Stuff Insulat Foam

DOW® Great Stuff Insulating Foam Sealant 12 Oz.



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• Tack free in 15 minutes
• Trims in 30-60 minutes
• Fills, air-seals and insulates small gaps up to 1 inch inside or out
• Adheres to wood, metal, masonry, glass and most plastics
• Forms a permanent weather-tight seal to minimize drafts and insect infestation
• Expands to take the shape of cracks and voids to form a durable, airtight, and water-resistant bond that eliminates unwanted airflow and helps reduce condensation

Manufacturer's Part Number: #157901

Big R SKU: #457440

• Foam elasticity allows for movement/shifting within a structure
• Cream colored foam cures rigid
• Paintable, stainable and sandable
• All-direction dispensing
• UL Classified


  • Wear appropriate personal protective equipment. Cover all skin, at a minimum wear long sleeves, safety glasses or goggles and gloves.
  • Make sure you are working in a well-ventilated area and that you read ALL instructions carefully before use.
  • Make sure the can has been stored properly and is at the right temperature. (consult can label)
  • GREAT STUFF™ is not to be used for filling closed cavities or voids such as behind walls and under tub surrounds; this improper use of the product could result in the accumulation of flammable vapors and/or uncured material. Failure to follow the warnings and instructions provided with the product, and/or all applicable rules and regulations, can result in injury or death.
  • Shake the can vigorously for a minimum of 60 seconds.
  • Screw the threaded end of the straw assembly securely onto the valve.
  • Practice using the foam on newspaper.
  • Insert tip into gap and dispense slowly. Do not force it from the can.
  • Fill openings approximately 50% full; the foam will expand to fill the space. Overfilling can buckle materials. If required, mist foam with spray water bottle to speed curing.
  • Foam is tack-free in 5 -15 minutes, trims in one hour and cures in 8 hours.1
  • Cured foam can be trimmed, shaped, sanded, painted or stained. To trim, use a sharp knife or serrated blade.
  • The can is good for one-time use only, so plan your projects accordingly. After 2 hours without use, the can will seal shut and can’t be reused.
  • Now it’s time to clean up and dispose of empty can(s) properly. Empty cans can be recycled and non-empty cans should be handled according to your local regulations
1*70 ± 5°F and 50 ± 5 % RH, 1 inch bead diameter, 6 inch length. Cure rate is dependent on temperature, humidity, and size of foam bead.

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