GREAT STUFF™ Insulating Foam Sealants, Adhesives & Accessories
Seal, fill, and insulate gaps, cracks, and penetrations with high-performance foam solutions for pros and DIYers.
- Improve energy efficiency by sealing air leaks
- Block moisture, drafts, and pests
- Precision application for cleaner results
What Are GREAT STUFF™ Foam Sealants?
GREAT STUFF™ products are insulating foam sealants and construction adhesives used to seal gaps, cracks, and penetrations in residential and commercial projects. These products help improve energyefficiency, reduce air infiltration, and protect against moisture and pests.
Shop GREAT STUFF™ Products by Category
Foam Sealants
Seal and insulate gaps and cracks to prevent unwanted airflow, moisture, and pests.
Cleaning Solutions
Foam cleaners and removers designed to maintain tools, extend product life, and ensure proper performance.
Specialty Coatings
Advanced coatings engineered for durability, flexibility, and specialized sealing applications.
Tools & Accessories
Dispensing guns and accessories for improved precision, control, and maximum yield.
Great Stuff’s One-of-a-Kind Dispenser Options
PRO Dispensing Gun
Get more control of your seal, access to more spaces, and max yield out of your can with the Great Stuff Pro™ 14 Dispensing Gun. Just dial in your bead size and go to work.
- Flow-control mechanism dispenses beads from 1/8” to 3”
- Lightweight, high-strength aluminum body with a metal trigger
- Works with all GREAT STUFF PRO™ cans
- No-drip dispensing
- Greater precision and access to hard-to-reach areas
Smart Dispenser™
The Great Stuff™ Smart Dispenser™ with its patented applicator and no-drip tip lets you fill gaps and cracks neatly and cleanly. Use the spring-loaded handle to apply foam with ease and precision.
- No-drip dispensing for less mess
- Reusable up to 30 days
Smart Dispenser Products
Original Dispenser
Use the Great Stuff™ Original Dispenser to apply a neat bead of foam in a variety of gaps, cracks, and crevices.
- Convenient, disposable straw
- Flexible nozzle fits in hard-to-reach places
Original Dispenser Products
GREAT STUFF™ Foam Sealant FAQs
What is spray foam sealant used for?
Spray foam sealant is used to fill and seal gaps, cracks, and penetrations to improve insulation and protection.
How does foam sealant improve energy efficiency?
It blocks air leaks that cause heating and cooling loss, helping maintain indoor temperatures.
What size gaps can foam sealants fill?
Different products fill small cracks to large openings, from 1 to 3 inches depending on formulation.