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Model #20120

Store SKU #1003932880

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32 oz. Tube and Tubeless Tire Sealant with Kevlar

  • Pro Grade tire sealant with Dupont Kevlar
  • Seals multiple punctures - up to 1/2 in. punctures
  • Easy to install; lasts 10 years or the useful life of the tire
  • See More Details

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Product Overview

Who wants down time from a flat out or a slow leak. Professional landscapers, contractors and the DIY person, time is money. From your lawn mower to your ATV, FlatOut by MULTI SEAL Tire Sealant with KEVLAR prevents flats and seals leaks. It can be used in tube and tubeless tires. It increases tire life, improves fuel economy and prevents up to 95% of flats, saving you money, time and improving your safety. Its engineered with super-strong KEVLAR fibers to seal puncture after puncture, providing 24/7 protection for 10 plus years or the useful life of the tire. FlatOut provides serious puncture protection- up to 1/2 in. in the tread area. MULTI SEAL has been the global leader in industrial tire sealant technology for over 35-years, trusted by military, delivery fleets and other industrial users. Our unique formula with super-strong KEVLAR fiber is non-toxic and has no latex or glue adhesives. FlatOut by MULTI SEAL Tire Sealant with KEVLAR never gets sticky, always remains liquid and washes out easily with plain water. Its simple to install with the built-in, easy dispensing cap and tube. If you don't need the entire bottle, the cap and tube are reusable. Just reseal it, store it and it's ready for your next tire. Our formula is non-flammable, non-toxic, non-corrosive and non-aerosol. See the chart for the specific amount needed for your outdoor power equipment, lawn mowers, RV and utility trailers, ATV, UTV, dirt bikes, off road vehicles, boat trailers and more.
  • Prevents flats, flat outs and seals leaks
  • Valve core removal tool included, it's part of the cap
  • Serious puncture protection, sealing up to 1/2 in. puncture
  • Install now for 24/7 protection which continues to seal puncture after puncture for up to 10 plus years
  • Prevents up to 95% of flats and virtually eliminates slow leaks: saves money, saves time and stay safe
  • Trusted by military, heavy construction, agriculture, delivery fleets and other demanding industrial users for over 35-years
  • One 32 oz. bottle is enough for 2 trailer tires (follow the application rates for your specific tire)
  • Not intended for passenger cars and light-duty trucks/SUVs, not for use with tire pressure monitoring systems (TPMS), do not use with other sealants or flat fixers

Info & Guides

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Specifications

Dimensions

Container Size (oz.)
32
Product Depth (in.)
2.5
Product Height (in.)
9.5
Product Width (in.)
4.5

Details

Fits Brands
Ariens,Beast,Bolens,Briggs & Stratton,Compatible with Multiple Brands,Craftsman,Cub Cadet,Gorilla Carts,Honda,Hustler,John Deere,Lawn-Boy,MTD,Murray,Snapper,Toro,Troy-Bilt,Turf Beast,Universal,Yard Machines,Yard-Man,Z-Beast
Fits Models
All
Part Type
Wheel/Tire Sealant
Returnable
90-Day
Used with Equipment Type
ATV,Brush Cutter,Chippers/Shredder,Compact Tractor,Cultivator/ Tiller,Generator,Hand Truck,Log Splitter,Mower,Pull-Behind Mower,Push Mower,Riding Mower,Snow Blower,Tractor Mower,Utility,Wheelbarrow

Warranty / Certifications

Manufacturer Warranty
10 year limited warranty or life of the tire

Questions & Answers

6Questions18Answers

Will this work on a slow leak located in the sidwall of a lawnmower tire?

Asked by JB April 25, 2021
3
Answers

I can only guess since your leak is in the sidewall, but I would suggest that this can handle the sidewall as easily as anywhere else, so long as you have it flow over the leak with some air pressure behind it. I was pleasantly surprised with the way this found and stopped the fast leak I had in the tube of my fat bike tire.

how much do tou put in a tire

Asked by edearl April 9, 2021
2
Answers

Depends on your tire size and there is an application chart on the back of the bottle.

Will this seal a very small rim leak

Asked by Bob December 4, 2020
3
Answers

It does seal bead leaks.

Can it be used "after the fact" (i.e. when you have flat/puncture in a bike tire)? ...if so, ho...

Asked by etschrader November 9, 2020
2
Answers

It can be used as repair. There are variables which will effect performance. Are you running a tube? It the tube ripped or sliced? In response to the "how long" we require tire pressure to form a seal since ours contain no adhesives.

Does this work with watered down slime? I put slime in the tire before and water got in it so it'...

Asked by Mason May 28, 2020
3
Answers

Unfortunately, all other sealants should be removed before installing FlatOut.

how do you install the sealant

Asked by JW February 19, 2019
5
Answers

The bottle has a built in tube that you push down onto the valve stem after you remove the valve core. Just squeeze the bottle !

Customer Reviews

  • 4.5
    out of 108 reviews
  • 83% recommend this product
Filter by:
Showing 1-10 of 108 reviews
Does not seal. . Used on a wheelbarrow with a leaky tire - tire went flat within 30-minutes. Rep...
Does not seal. . Used on a wheelbarrow with a leaky tire - tire went flat within 30-minutes. Repeated the next day (using almost the entire bottle) and still the tire leaks. Absolutely garbage would not recommend, with I could return for my money back.
by Wolf
1 person found this helpful
The Tubeless Tire Sealant seems to work great even when installed in tires with tubes, I have ins...
The Tubeless Tire Sealant seems to work great even when installed in tires with tubes, I have installed one bottle of this into my wheelbarrow tire and my two wheel hand cart tires three days ago and all tires are still holding air, normally they would go flat over night. The built in tube that is in the bottle allows you to install the sealant very easily without making a mess too.
by Lucky
3 people found this helpful
Easy to install. Works well. I downgraded it slightly because the product comes with a plastic v...
Easy to install. Works well. I downgraded it slightly because the product comes with a plastic valve stem core remover. In my case I easily removed one but the other was too tight and mangled the plastic tool so it can't be used. If that happens the only recourse is to get a metal core remover. The process is simple, remove the core which deflates the tire, squeeze the liquid into the tire, install the core, air the tire up and rotate the tire to distribute the sealant throughout the tire. I used it on my cruiser bicycle which I use daily for leisurely trips. So far, no leaks.
by mvno
1 person found this helpful
I own a 4 x 8 trailer that I use to haul fertilizer, brush, and just about anything that's too he...
I own a 4 x 8 trailer that I use to haul fertilizer, brush, and just about anything that's too heavy to lift into the back of my SUV. The tires are pretty typical for a light trailer; they're tubeless and only rated for 55mph. I am constantly worried that one of them is going to get a flat while I'm 2 hours from home. So, when I saw MULTI SEAL 32 oz. Tube and Tubeless Tire Sealant with Kevlar available, I grabbed it immediately. Installation was pretty easy. Just use the tool provided by Multi Seal to remove the valve core from the stem, insert the hose, and let the bottle do it's thing until the tire reaches it's recommended pressure, rotate the tire several times to spread the product out, and stop. That's it, pretty much. I haven't had any problems yet with the tire, so I can't speak to whether or not MULTI SEAL 32 oz. Tube and Tubeless Tire Sealant with Kevlar lives up to its claims, but I don't see any reason why it wouldn't.
by Smo77
1 person found this helpful
I;m sick of finding flat tire every time I pull out my wheels barrow or hand truck. So, when I sa...
I;m sick of finding flat tire every time I pull out my wheels barrow or hand truck. So, when I saw the MULTI SEAL 32 oz. Tube and Tubeless Tire Sealant with Dupont Kevlar I knew I had to try it. It is relatively inexpensive and very easy to apply. You just remove the valve core, squeeze in the recommended amount of sealant, put the valve core back in, an pump up the tire. Spin the wheel bit for the sealant to coat the entire inside of the tire. I was tempted to use it on my motorcycle too, but since the product stays liquid, it would run down when parked and then cause a out of balance tire.
by DEStefan
3 people found this helpful
Not for use on passenger vehicles! I got this for a snowmobile trailer and so far so good, no fla...
Not for use on passenger vehicles! I got this for a snowmobile trailer and so far so good, no flats and I have a lot more piece of mind driving at speed. The "Installation" is pretty easy, just follow the directions on the back of the bottle and drive a short distance immediately afterwards. The sealant will coat the entire inside of the tire sealing any leaks and preventing punctures up 1/2" in the tread. It's supposed to last over 10 years. I cannot speak to how well it actually works until I run into a problem with my tires, but I will surely update this review if/when I do. For now, 5 stars for ease of application.
by BobO
1 person found this helpful
I have an old Craftsman riding mower that 3 of the 4 tires have slow leaks. Just setting for the winter 2 are completely flat, so I wanted to get something that would be easy to install, with this one you just screw the hose (supplied) onto the valve stem then squeeze the sealant into the tire. Seams simple enough. As soon as the weather breaks I’ll be out there installing it. For my tractor tire sizes it’ll require 3 bottles. I also have a wheelbarrow that has a flat so I plan on putting some in it to fix that problem as well. For me it’s less hassle then breaking the tires down to get to the tubes and patch.
by Livingthedream
1 person found this helpful
FlatOut is the best flat tire prevention additive I have...
FlatOut is the best flat tire prevention additive I have ever seen and used. Best affordable blowout prevention money can buy!
by MICHAEL25
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
I used 9 ounces in a flat 26x4.0 tubed fat...
I used 9 ounces in a flat 26x4.0 tubed fat tire. After I treated and refilled the tire, I heard hissing. I spun the tire gently a few times and didn't hear the hissing anymore. It's still holding air 4 days later. I'll have to fill the tire to my riding pressure and pay more attention to see how things go. I have 9 years, 11 months, and 26 days to go in order to see if this FlatOut lives up to its suggested lifetime.
by GoodFrog
Showing 1-10 of 108 reviews