GREAT STUFF PRO™ Gaps & Cracks Polyurethane Foam Sealant

GREAT STUFF PRO™ Gaps & Cracks


The Gap and Crack Attacker

All of those gaps and cracks in the average home are letting heat and conditioned air leak out and unwanted air sneaks in. Create greater comfort by sealing those openings with a heavy-duty, fire-blocking version of GREAT STUFF PRO™ Gaps & Cracks Polyurethane Foam Sealant.


This polyurethane Foam Sealant spray foam sealant:

  • Is applied with a foam-dispensing gun for greater precision and access to hard-to-reach places.
  • Comes in a can that’s reusable for up to 30 days, minimizing waste (cans of straw-applied Gaps & Cracks can be used one time only).
  • Sprays right into gaps and cracks up to 3" (25 mm) in diameter.
  • Is a Fireblock sealant.
  • Expands to fill the shape of the gap and crack and adheres to wood, vinyl, metal surfaces, and other building materials.
  • Forms a long-lasting, airtight, water-resistant seal.
  • Helps keep out moisture/condensation and allergens.
  • Allows movement and shifting within a structure.
  • Can be used indoors or outdoors.

It's easy to use because:

  • It dries rigid and is tack-free within 3-10 minutes.1
  • You can scrape away any excess after 8 hours.
  • It's orange-colored for easy recognition.
  • You can paint, stain or sand it.
  • It's UL Classified.

170 ± 5 °F and 50 ± 5 %RH, 1-inch bead diameter, 6-inch length. The cure rate is dependent on temperature, humidity, and size of foam bead GREAT STUFF PRO™ Gaps & Cracks.


How To Use GREAT STUFF PRO™ Gaps & Cracks

Read all instructions and safe handling information before you start. GREAT STUFF™ product should not to be used for filling closed cavities or voids
such as behind walls and under tub surrounds.


GREAT STUFF PRO™ Gaps & Cracks Building Code Compliance

ICC-ES Legacy NER-645. ASTM E331, ASTM E547, ASTM C1620 and complies with AAMA 812-04 and ABAA standards for air leakage per ASTM E283. UL Classified as a sealant. See CCMC 13074-R.


Down To The Details Of Great Stuff™ Pro™ Gaps & Cracks


Select your GREAT STUFF PRO™ Dispensing Gun.

We offer a choice of four dispensing guns for applying GREAT STUFF PRO™ products for bead size control and precise placement.

Great Stuff Pro™ Dispensing Gun

What Project Are you Ready To Start?

GREAT STUFF PRO™ Gaps & Cracks works in multiple applications.

Sealing Pipe Penetrations

Learn how to use Great Stuff spray foam insulation to seal pipe penetrations and prevent air leakage from gaps around pipes in your home.

Sealing Pipe Penetrations
Read more
Sealing HVAC ducts and penetrations

Watch our video to learn how to use Great Stuff spray foam insulation to seal around HVAC ductwork and penetrations.

Sealing HVAC ducts and penetrations
Read more
Air Sealing Attic

Learn how to use Great Stuff spray foam insulation to seal your attic, reduce air leaks, and keep out unwanted guests.

Air Sealing Attic
Read more

Great Stuff™ Insulating Foam Sealants Safe Handling

For warnings and precautions, disposal information and more, download GREAT STUFF™ Consumer Safety Information or view our safe handling videos.

If you need assistance, contact us. We're always here to help you through any project.

Download User Safety Information Download Consumer Safety Information Renseignements Sur La Sécurité Du Produit Great Stuffmc Pour Le Consommateur Sur La Sécurité Du Produit Mousse D'étanchéité Isolante Great Stuff Promc

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