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Akfix 805 Gap Filler Expanding Foam Sealant (1x12 Oz.)- Gaps and Cracks Spray Foam Insulation Can, Waterproof Sealant with Straw, Polyurethane Expanding Foam for Window and Door | 12 Oz. 1 Pack

  • Based on 284 reviews
Condition: New
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$6.95 Why this price?
Easter Deal · 93% off was $95.98

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Availability: In Stock.
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Arrives Thursday, Apr 24
Order within 23 hours and 9 minutes
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Style: Gap Filler 12oz


Size: 1 Pack


Material: Polyurethane


Brand: Akfix


Style: Gap Filler 12oz


Item Weight: 15.8 Ounces


Item dimensions L x W x H: 2.55 x 2.55 x 7.87 inches


Product Dimensions ‏ : ‎ 2.55 x 2.55 x 7.87 inches; 15.8 ounces


Item model number ‏ : ‎ Akfix 805-1 Pack-400Ml-FBA


Date First Available ‏ : ‎ November 14, 2022


Manufacturer ‏ : ‎ Akfix


Best Sellers Rank: #58,495 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #85 in Urethane Adhesives


#85 in Urethane Adhesives:


Customer Reviews: 4.2 4.2 out of 5 stars 284 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 24

This item is non-returnable:

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

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • WORKS!
Style: Black Foam 12oz Size: 12 Pack
Amazing! Every can worked! It doesn't expand too much at all, which is exactly what I needed. It dries hard and sticks to everything - so be careful not to get it on you. Amazing deal, actually, as regular foam at the hardware store costs between 6 and ten dollars a can, and if you want black foam, like for fountains, etc, you are going to pay over $20 a can! Now, I am familiar with foam in cans. I know how to keep the foam from dripping, during application. It's a skill. The foam has to make contact with the receiving surface and if you are fighting gravity, you have to layer small beads. This is true for just about any foam spray. This was amazing and perfect and I'm in love! ... show more
Reviewed in the United States on November 23, 2024 by Matthew Kennedy

  • Really works.
Style: Gap Filler 12oz Size: 2 Pack
Had a mouse problem until I sealed all the open spaces.
Reviewed in the United States on February 22, 2025 by Norma Bishop

  • Does the job but very messy
Style: Black Foam 12oz Size: 1 Pack
Needed this for underneath our motorhome to sell some areas that wore away. Holding the Can upside down is a challenge and they are for the spray drips all over. I would recommend not using it if you have to lay on the ground. But should be fine standing up
Reviewed in the United States on October 9, 2024 by NonnaK

  • Great Product!!!
Style: Gap Filler 12oz Size: 2 Pack
I have tried several products as a gap filler... by far, this is the best product that I have used!! Expands like up to 3 inches, dries pretty fast, and easy to cut.
Reviewed in the United States on March 11, 2025 by Jose Ruben Martinez

  • Great
Style: Gap Filler 12oz Size: 2 Pack
This worked great for what I need it for. Easy to use.
Reviewed in the United States on March 12, 2025 by Brittany B.

  • DO NOT PURCHASE!!!!!!!!
Style: Gap Filler 12oz Size: 2 Pack
RESOLVED ISSUE WITH CAULKING AND NEVER OPENED BOX THIS PRODUCT CAME IN, TRIED RETURNING IT, AND WAS ADVISED IT WAS NOT ELIGABLE FOR RETURN. WHAT A GYP. I WILL ADVISE NOT TO BUY THIS PRODUCT WHAT SO EVER!!!!
Reviewed in the United States on February 22, 2025 by Eric F.

  • Not the same quality
Style: Black Foam 12oz Size: 2 Pack
Product did not seem to be the same quality as comparable products purchased in Big Box stores. Thinner and a little more difficult to use in my application.
Reviewed in the United States on January 30, 2025 by Pork and Beans

  • All foam isn’t created equal
Style: Black Foam 12oz Size: 2 Pack
It has it’s quirks, like not wanting to come out of the can sometimes but overall works better than it’s more expensive cousin. Expands better, doesn’t discolor in the sun as much and is actually waterproof. If you just take a regular wooden toothpick and poke it down in the top before using it then it comes out with no issue. ... show more
Reviewed in the United States on February 1, 2025 by Amazon Customer

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