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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 366 reviews
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Size: 12 Pack


Style: Gap Filler 12oz


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.
  • SAFETY: Akfix 805 Spray Foam Insulation Harmful by inhalation. Irritating to eyes, respiratory system and skin. Do not breathe spray/vapour. Use only in well-ventilated areas. It is a pressurized container. Keep away from direct sunlight and do not expose temperatures over 50 C. Do not pierce or burn the product, even after use. Keep away from sources of ignition, no smoking.
  • RESTRICTIONS: Storage above +25 C and below +5 C shortens shelf life. Akfix 805 Polyurethane Spray Foam should be stored and transported in vertical position. It also should be kept in room temperature for at least 12 hours before the application. Paint or coat the cured foam for best results in outdoor applications. NOTE: Cured foam will discolor if exposed to ultraviolet light.
  • MANUFACTURERS & AMATEURS CHOICE: Exports more than 108 countries Akfix, all over the world are preffering for more permanent and fruitful outcomes by professionals and amateurs.
  • QUALITY WARRANTY: As a 30 year manufacturer with more than 200.000 sqft manufactring plant, If you have any questions about our items, please contact us by email, and do not forget at any problem be sure we will be here to solve.

Brand: Akfix


Specific Uses For Product: Window, Wall, Pipe, Electrical, Door


Material: Polyurethan Foam


Compatible Material: Wood, Concrete


Item Form: Foam


Product Dimensions ‏ : ‎ 8.55 x 8.55 x 11 inches; 11.85 Pounds


Item model number ‏ : ‎ Akfix 805-12 Pack-400Ml


Date First Available ‏ : ‎ November 14, 2022


Manufacturer ‏ : ‎ Akfix


Best Sellers Rank: #13,928 in Automotive (See Top 100 in Automotive) #41 in RV Sealants


#41 in RV Sealants:


Customer Reviews: 4.2 4.2 out of 5 stars 366 ratings


Frequently asked questions

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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


  • Works well! although a bit expensive
I used it on a small/medium (2-4 foot high with 3 tiers) waterfall. It was barely enough for one. A professional would have used it with more efficiency i'm sure. WEAR GLOVES! If it's stuck on your fingers and nails, then a nail filer will help with the nails. Nothing but time will help with your fingers. ... show more
Reviewed in the United States on May 20, 2025 by Kenneth Lee

  • WORKS!
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

  • Wear gloves, it's messy but it works!
Great! Much easier than other options. My recommendations: Spray down from inside if you're sealing an RV floor. It's challenging to spray up., wear gloves (it's near impossible to get this off your hands), and wear a mask if your sensitive to things like spray paint - it smells but it's not as strong as other spray foams I've used in my house and the odor was gone after an afternoon. ... show more
Reviewed in the United States on June 27, 2025 by Beach Dude

  • Good buy
Size: 2 Pack Style: Gap Filler 12oz
Gap filler works great
Reviewed in the United States on June 11, 2025 by Jennifer Emerick

  • Does not hold
Size: 2 Pack Style: Gap Filler 12oz
Horrible stuff. It is hard to use. It just fell off off everything I sprayed it on. Didn't stay in seams. Most of it is on the ground, not in my wall seam
Reviewed in the United States on July 21, 2025 by Ang

  • Quick and easy
Size: 2 Pack Style: Gap Filler 12oz
Got sprayed in form insulation in my attic need to patch a place that got damaged this worked great for that. Can does not go very far so get an extra. Very easy to apply for do it yourself.
Reviewed in the United States on July 8, 2025 by brandi barnes

  • Matches OEM foam on travel trailer underbelly
Had to replace waste valve on my travel trailer… had to open up my “sealed underbelly. Used this foam to seal underbelly after valve change out. Worked fine and closely matched OEM foam I disturbed and had to remove. NOTICE: you will most likely use both cans!There is a learning curve to applying the foam! Haha! Was a bit messy as I was laying on my back and shooting it in tight places.It wants to drip and drool!🤨 wear clothes u can throw away! Wear disposable gloves! Sticks to you and everything else! Drys reasonably fast. Similar to spray foam cans available in big box stores. However, none carry black color! I you want the OEM look… this works! I ended up using 4 cans total. Your job and skills may differ. Happy with results on my end. ... show more
Reviewed in the United States on June 5, 2025 by Brenda K

  • Expanding Foam
It works great. But you have to use up the whole can as the nozzle and hose plugs up after use. I had over 1/2 a can left over that I had to throw away because of that.
Reviewed in the United States on July 2, 2025 by Alan Leggett

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