Dow 157860 Triple Expanding Foam Sealant, 20 Oz

Used primarily for sealing penetrations and air leaks in the building envelope. For outside applications paint when cured to protect against UV discoloration. Not recommended for use around doors and windows. Adheres to wood, masonry, glass and most plastics. Closed cell for blocking radon gas and air infiltration.

Highlights:

• Fills cracks, gaps and holes
• Sandable, paintable, moldable
• Permanent, rigid, non-shrinking, waterproof and water resistant
• Straw applicator allows for rapid, yet precise, controlled flow
• Can be dispensed at any angle
• Expands approximately 60-percent during cure
• 15 minute tack-free time; 1 hour cure time
• Flammable during dispensing
• 240 degrees Fahrenheit max temperature for cured foam
• 12 Oz yields 275 linear feet in 3/8" bead; 20 Oz yields 460 linear feet in 3/8" bead
• UL Listed

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We ship within the contiguous United States.

Returns accepted within 30 days by mail. Return shipping is paid by the customer. See our refund policy.