Top 10 Best foam sealer in 2026

Last Updated - 6/29/2026

🏆Best Choice

Loctite

Loctite Tite Foam Big Gaps Spray Foam Sealant, 12 fl oz Can, 1 Pack - Polyurethane Expanding Insulation

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Expands To Fill: Loctite Tite Foam Big Gaps fills, seals, and insulates effectively around gaps and cracks up to 3 inches in size
•High Density Foam: Offers high density with a uniform cell structure for durability and overall insulation for your remodeling needs
•Superior Flexibility: Withstands building and material movement without compromising its seal
•Strong Adhesion: Sealant bonds to most building materials like wood, concrete, brick, stone, metal, pvc, and more
•UV Resistance: Withstands harsh UV rays for long lasting results

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$7.98

$9.99

-20%

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Loctite

Loctite Tite Foam Gaps & Cracks Spray Foam Sealant, 12 fl oz Can, 1 Pack - Polyurethane Expanding Insulation

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Expands To Fill: Loctite Tite Foam Gaps & Cracks fills, seals, and insulates effectively around gaps and cracks up to 1 inch in size
•Premium Durability: Polymer foam based on purified and concentrated ingredients withstands harsh UV rays for long-lasting results
•High Density Foam: Offers high density with a uniform cell structure for durability and overall insulation for your remodeling needs
•Superior Flexibility: Withstands building and material movement without compromising its seal
•Strong Adhesion: Sealant bonds to most building materials like wood, concrete, brick, stone, metal, pvc, and more

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$10.39

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Great Stuff

Great Stuff 99112809 Smart Dispenser Pestblock, Gray

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•This ready-to-use foam sealant expands up to 1" to take the shape of gaps, creating a long-lasting, airtight seal. Block out nuisances entering your home.
•PUT FOAM WHERE THEY ROAM. Take on common areas where nuisances get in such as PVC pipe penetrations, around electrical cable lines, water faucet penetrations, attic hatch frames, rim joists, sill plates and more.ates and more.
•DISPENSE SMARTER. Securely thread the Reusable Smart Dispenser and leave attached to the can to seal projects for up to 30-days. Insulating foam stops as you stop for clean, easy, no-drip dispensing and increased precision with more control.
•SPRAY ANYWHERE. Fill gaps and keep nuisances out with exceptional adhesion to building materials on both the interior and exterior of your home. Adheres to wood, metal, masonry, glass and most plastics.
•VERSATILITY. Stop waiting around and keep the pace of your projects on target. This foam sealant dries tack-free in 20 minutes and cures rigid for trimming in 1 hour. Trim, sand, stain and paint for a truly GREAT finish to your DIY projects.
•Light Grey in color - Forms a long-lasting, airtight and water-resistant barrier
•Helps improve the home’s energy efficiency by sealing gaps and cracks
•Interior/Exterior use - Bonds to most building materials and surfaces
•Tack free in 10–15 minutes; Trims in one hour
•UL Classified

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$10.10

$12.99

-22%

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STANLEY

Stanley F993 Expanding Foam Sealant Spray – (2x12oz) Gaps & Cracks Filler, PestBlocker for Indoor/Outdoor Use – Paintable, Waterproof, Polyurethane Insulation Foam with Straw Applicator | 2 Pack

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Powerful and Long-Lasting Seal: Strengthen your home’s defenses with Stanley Block Spray Foam, a high-expansion formula that seals gaps and cracks from 1" to 3". Ideal for use around doors, windows, pipes, and wall openings to create a secure and protected environment.
•Total Coverage for Entry Points: This versatile foam expands to fill cavities, joints, and structural gaps, helping block unwanted air and environmental elements from entering. An excellent choice for use in garages, attics, crawl spaces, and basements.
•Strong Adhesion Across Surfaces: Bonds firmly to wood, concrete, drywall, and more—delivering tight insulation with durable sealing. Ideal for reducing drafts and improving energy efficiency in both residential and commercial settings.
•Weather-Resistant and Durable: Cures into a rigid, waterproof barrier that stands up to sunlight and changing temperatures. Meets fire class B3 standards for added peace of mind and long-term performance.
•Clean, Paintable Finish: Designed for smooth application and clean results—this foam is odor-free, easy to trim, and fully paintable once cured, making it ideal for exposed areas and final touches.

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$19.49

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Red Devil

Red Devil 0909 Spray Foam, Fill Large Gaps & Cracks Expanding Insulation Polyurethane Foam Sealant, 12 Oz, Off White

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•FILLS LARGE HOLES, GAPS & CRACKS: Ideal for insulating and preventing drafts
•USE INSIDE OR OUTSIDE: Can be used anywhere around the home
•SANDABLE, PAINTABLE & STAINABLE: Can be sanded, painted or stained after curing
•ADHERES TO: Painted and unpainted wood, concrete, cinder block, aluminum & fiberglass
•SOLVENT CLEAN UP: Requires the use of a solvent for cleanup
•12 oz aerosol great for smaller jobs
•Seals bonds and insulates
•Fills large and small holes in ceilings floorboards concrete and cinder block walls
•Seals around ducts cables plumbing areas and central heating pipes
•This item is not for sale in Catalina Island

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$7.19

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DAP

DAP Touch 'n Foam Mouse Shield Foam Sealant & Blocker, Off White, 12 Oz (7565012506)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•For Interior & Exterior, Pest Blocker Air-Seals & Insulates
•EPA Registered Pesticide That Protects The Foam From Attack By Mice & Other Pests Such As Birds, Tree Squirrels, Blocks Ants, Roaches, Spiders & Bees
•Use To Seal Gaps & Cracks Inside Your Garage

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$12.78

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KRAKEN BOND

Kraken Bond Black Spray Waterfall Foam Sealant - (2x12oz) Expanding Polyurethane Pond Foam Sealer Black, UV Resistant Insulating Spray for Landscape & Exterior, Straw Use, 2 Pack

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•UNIQUE BLACK FOAM SOLUTION: Specialized black expanding foam designed for discreet and aesthetic filling in waterfall and landscape settings. Seamlessly blends into the environment, providing a professional and natural finish.
•ALL-SEASON PERFORMANCE: Features black spray foam insulation that remains effective even in low temperatures. Perfect for year-round applications, particularly in cold climates, ensuring reliable performance.
•OPTIMAL TEMPERATURE GUIDANCE FOR BEST RESULTS: Achieve peak performance by ensuring the can is at an optimal temperature of 68°F before use. Application is effective in a range of 41°F to 86°F, allowing for flexibility in varying weather conditions. For cold climates, let the can acclimate to room temperature to maintain top-notch results without any compromise in product quality or performance.
•AQUATIC AND WILDLIFE SAFETY: Environmentally friendly and non-toxic, making it safe for aquatic life and wildlife. Ideal for use in sensitive environments where safety is a top priority.
•VERSATILE AND DURABLE APPLICATION: Suitable for a wide range of uses, from pond spray foam in water landscapes to foam adhesive spray for insulation in automotive and marine settings. Offers strong bonding, water resistance, and UV protection.

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$18.99

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GORILLA

Gorilla Spray Foam Sealant, Light Gray Color, 12 Ounce (Pack of 2) - Multi-Purpose Expanding Foam, Polyurethane Spray, Fills Gaps & Cracks

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Multi-purpose formula: This polyurethane sealant is an ideal foam insulation and gap filler of up to 1 inch voids or cracks
•Fast dry: Gorilla insulation foam dries fast and is trimmable in 45 minutes, sealing out air, moisture, pests, and insects quickly
•No warping/bowing formula: Our spray insulation meets AAMA 812-19, meaning no warping or bowing
•No shrinkage: When cured, our spray foam insulation maintains its integrity even in extreme temperature swings
•Use on: Our polyurethane foam is ideal for wood, metal, glass, masonry, plumbing, HVAC, electrical**, basements, crawlspaces, attics, ceilings, skylights, and more.

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$17.68

$22.99

-23%

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DAP

DAP Wall and Cavity Foam with Wide Spray Applicator Aerosol, Off White, 20 oz. (7565000370)

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Use foam insulation sprayer to fill, air seal, and insulate stud wall cavities, rim joists, crawlspaces, attics and basements on homes and buildings
•Closed cell spray foam formula keeps moisture out of structures and is Class A Fire Rated to meet building codes; interior use on a variety of materials: including wood, masonry, metals, drywall
•Foam dries tack free in 7 to 12 minutes and fully cures in 4 hours (depending on foam thickness, temperature/humidity)
•Patent pending technology provides spray similar to a two-component product in an easy one part system; Wide spray applicator with responsive flow control trigger and a consistent wide-angle pattern
•Enhances R-Value of structures, seals out air and provides thermal insulation savings year round; saves energy and up to 30% on energy costs - meets ASTM C518 Aged R-Value of 4.1 at 1" (25mm)

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$26.53

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Great Stuff

Great Stuff 99108824 Smart Dispenser Gaps & Cracks, Cream, 12 Ounce

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•THE GAP AND CRACK ATTACKER! Reduce drafts and save energy
•THE GAP AND CRACK ATTACKER! Reduce drafts and save energy
•No drips, less mess - foam stops where you stop
•Reusable for up to 30 days - use again and again
•Precise, greater control

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$8.18

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