Dow Great Stuff Pro Gaps and Cracks

In the United States, GREAT STUFF PROâ„¢ Gaps & Cracks was the first foam to be recognized as a fireblock, which means it resists the free passage of flames to other areas of...

Buy Now From Amazon

Dow Great Stuff Pro Gaps and Cracks

In the United States, GREAT STUFF PROâ„¢ Gaps & Cracks was the first foam to be recognized as a fireblock, which means it resists the free passage of flames to other areas of the building through concealed spaces. The foam is a bright orange color, easily identifiable by U.S. code officials.

Considering the combined open space created by gaps, cracks and penetrations in the average home can total as much as a 4' x 4' window left wide open, it’s no wonder that air infiltration is one of the biggest threats to a home’s energy efficiency. And as uncontrolled air movement drives up energy bills, it may also increase the potential for mold, mildew and other moisture-related problems.

Great on Benefits For a professional seal, rely on GREAT STUFF PROâ„¢ Gaps & Cracks.

  • Ideal for gaps and penetrations up to 3" (75 mm)
  • Expands to form airtight and waterresistant seal
  • Bonds to wood, metal, masonry, glass and most plastics
  • Repels and deflects water
  • Quick cure time (tack-free in less than 20 minutes, trim within 30 minutes)*
  • Cost-effective: 24 oz (680 g) can equivalent up to 22 quart tubes of caulk; 30 oz (850 g) can up to 33 quart tubes of caulk†
  • Easy cleanup with GREAT STUFF PROâ„¢ Gun Cleaner
  • Orange colored foam

*Actual cure time will depend on temperature, relative humidity and size of foam bead.
†Based on estimated yield under ideal conditions using gun foam, 3/8" bead.



  • USA Manufactured: Proudly made in the USA
  • Seals Gaps Up to 3 Inches: Fills and insulates larger penetrations around framing, pipes, vents, electrical runs, and sill plates; expands to form a water-resistant, airtight barrier
  • Fireblock Rated for Code Compliance: Orange color makes it easily identifiable as a fireblocking sealant; designed to slow the spread of flames and smoke through concealed spaces
  • Reduces Energy Loss: Helps prevent up to 40% of heating and cooling loss from air leaks, improving energy efficiency and lowering utility bills (U.S. Department of Energy)
  • Fast-Setting and Trim-Ready: Tack-free in 3–10 minutes and ready to trim in 60 minutes; allows for efficient application and cleanup on the job site or during home projects
  • USA Manufactured: Proudly made in the USA
  • Seals Gaps Up to 3 Inches: Fills and insulates larger penetrations around framing, pipes, vents, electrical runs, and sill plates; expands to form a water-resistant, airtight barrier
  • Fireblock Rated for Code Compliance: Orange color makes it easily identifiable as a fireblocking sealant; designed to slow the spread of flames and smoke through concealed spaces
  • Reduces Energy Loss: Helps prevent up to 40% of heating and cooling loss from air leaks, improving energy efficiency and lowering utility bills (U.S. Department of Energy)
  • Fast-Setting and Trim-Ready: Tack-free in 3–10 minutes and ready to trim in 60 minutes; allows for efficient application and cleanup on the job site or during home projects

Similar Products

GREAT STUFF PRO Dispensing Gun Cleaner, 12ozDow Great Stuff Pro Gaps and Cracks 24 oz Foam (12) + Pro Foam Gun (1) + Dow Great Stuff Pro foam Gun Cleaner (2)Great Stuff 99046685 Stuff Pro 14 Dispensing Foam Gun, SilverDOW CHEMICAL COMPANY 11029297 Wood-Wall-molding-and-Trim, 6 PieceFoam Gun, Picowe Foaming Gun Pu Expanding Caulking Gun Metal Body Pro Heavy Duty PU Foam Gun Grade Expanding Spray Application ApplicatorGREAT STUFF PRO Window & Door 20 oz Insulating Foam SealantFoam N' Seal FNS500 Insulating Foam Dispensing GunGREAT STUFF PRO 14 Dispensing Gun