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Akfix 805 Gap Filler Polyurethane Expanding Foam Sealant (12x12 Oz.)- Gaps and Cracks Spray Insulation Can, Waterproof Sealant with Straw for Window and Door | 12 Oz. 12 Pack

  • Based on 479 reviews
Condition: New
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Availability: In Stock.
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Arrives Sunday, May 10
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Size: 12 Pack


Features

  • COMPONENT: Akfix 805 Insulation Spray Foam is a single-component, moisture-curing and self-expanding aerosol polyurethane foam. It is designed for easy dispensing through the straw adapter included with each can. Foam expanding sealant does not contain any propellant gases that are harmful to the ozone layer.
  • COMMON USAGE AREAS: Akfix 805 Polyurethane Foam Spray can be used on window and door frames, big gaps, joints, cavities, electrical outlets, water pipes, etc. It is also used for filling of penetrations in walls. After the application, this expanding foam insulation spray is recommended to be used with 800C Spray Foam Cleaner which is sold separately.
  • HOW TO USE: 1.Akfix 805 Waterproof Spray Foam Insulation Can should be shaken at least 20 times before use. 2.When applied it should be turned down. 3.Strongly recommended not to press the trigger hard if you use it for the first time. 4.Make sure to wear protective gloves, safety glasses, and protective clothing during the process. 5.Foam cures in 3-5 minutes. But you can wait 24 hours for a full cure. 6.Cured foam dries rigid and can be trimmed, shaped and sanded.
  • PROPERTIES: Akfix 805 PU Foam is a product that water-proof, over paintable. NOTE: This window insulation spray foam adheres to almost all building materials with the exception of surfaces such as polyethylene, teflon, silicone and surfaces contaminated with oils and greases, mold release agents and similar materials.
  • UL CERTIFIED SAFETY: This product is UL certified, meeting the highest standards of safety and quality. Designed for your peace of mind.

Material: Polyurethane Foam


Brand: Akfix


Style: Gap Filler 12oz


Item Weight: 11.9 Pounds


Item dimensions L x W x H: 8.55 x 8.55 x 11 inches


Brand Name: Akfix


Unit Count: 144.0 Ounce


Number of Items: 12


Part Number: Akfix 805-12 Pack-400Ml


Model: Akfix 805-12 Pack-400Ml


Manufacturer: Akfix


Included Components: Akfix 805-12 Pack-400Ml


Material Type: Polyurethane Foam


Water Resistance Level: Waterproof


Item Form: Foam


Compatible Material: Concrete, Wood


Item Weight: 11.9 Pounds


Item Dimensions: 8.55 x 8.55 x 11 inches


Style Name: Gap Filler 12oz


Color: Pack


Surface Recommendation: Window, Door, Wall, Electrical Outlets, Water Pipes


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 10

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • Worked great
Size: 2 Pack
Worked great. I live in a dinky poorly build apartment that had a terrible draft underneath my front door. This solved my problem. It was easy to use. Definitely worth the price.
Reviewed in the United States on February 28, 2026 by laci

  • works great
Size: 2 Pack
works very well, filled the space with half the can
Reviewed in the United States on March 3, 2026 by P. Matelski

  • I’ll never purchase foam from big box stores again
Size: 2 Pack
I have never had a better experience with spray foam until I’ve tried this product and brand. The spray foam expands evenly compared to the competitors, sticks very well, and the several cans I purchased, each one worked consistently until the end. No spit and sputtering, no wasted material. Nice and even flow, great bang for the buck. Will buy again ... show more
Reviewed in the United States on November 9, 2025 by Travis A.

  • It works.
Size: 2 Pack
It does whay it is suppose to do.
Reviewed in the United States on March 16, 2026 by Edward Kampans

  • mouse issue
Size: 2 Pack
espands above and beyond expectation. happy with the results
Reviewed in the United States on March 23, 2026 by Kindle Customer

  • Dont last you long
Size: 2 Pack
They dont last you long.. bought 4 dollar ones at Walmart that lasted me longer to spray everything
Reviewed in the United States on March 27, 2026 by Henry Perez

  • Price
Size: 2 Pack
As advertised! So far, so good
Reviewed in the United States on March 7, 2026 by ETxKel

  • Waste
Size: 2 Pack
Too hard to come through the straw and trying to aim was nearly impossible
Reviewed in the United States on March 4, 2026 by Diana Floyd

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