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Flat-Free Tire Sealant



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Flat Free Tire Sealant

FLAT FREE Tire Sealant prevents flat tires before they ever happen.

FLAT FREE Tire Sealant is a revolutionary chemical solution that once injected into your tires, provides full protection against leaks and punctures for the ENTIRE LIFE OF YOUR TIRES!

FLAT FREE is designed to:
  • Protect Tires Against Punctures
  • Extend the Life of your Tires
  • Maintain Proper Tire Air Pressure
  • Improving Fuel Economy
  • Improve Safety

FLAT FREE Tire Sealant utilizes a revolutionary chemical structure that causes it to remain a fluid, so that it will immediately fill and seal any hole or puncture (up to 1/4”) as soon as it occurs.

Consider it an insurance policy for your tires. Simply inject FLAT FREE into all of your tires and you can say goodbye to punctures and leaks FOREVER.

FLAT FREE Tire Sealant saves you money by extending the life of your tires, lowers tire maintenance costs, keeps air pressures at the proper inflation, improves fuel mileage and improves safety for you and your family, all of which add up to increased peace of mind and huge $$$ Savings!

Installation is easy, all you need is the correct quantity of FLAT FREE (see below), the valve core remover (included with each purchase) and a source of air to re-inflate your tire after you’ve injected the sealant into the tire.

NOTE! Flat Free Tire Sealant is not recommended for use in very low profile tires.


Installation Amounts Per Tire Size and Type
  • ATV - 32 oz.
  • Automobile Tires* 13& & 14" Rims - 8 oz.
  • Automobile Tires* 15" & 16" Rims - 10-12 oz.
  • Automobile Tires* 17” & 18” Rims - 13-14 oz.
  • Automobile Tires* 19” and over (use formula: tire height (inches) x tire width (inches) x .068
  • Bicycles - 4 oz.
  • Golf Carts - 16 oz.
  • Motorcycles* 4.50-18 size - 8 oz.
  • Riding Mowers Front - 8 oz.
  • Riding Mowers Rear - 16 oz.
  • Trailer Tires 6.90-12 size - 8 oz.
  • Trailer Tires 8.25x15 - 16 oz.
  • Truck, Van, Motor Home* 15" & 16" Rims - 10-12 oz.
  • Truck, Van, Motor Home* 17” & 18” Rims - 13-14 oz
*Automobile, motorcycle, van, truck and motor home tires must be balanced prior to installation.


Frequently Asked Questions

What is Flat Free?

Flat Free is a chemical product that when installed inside a tire, will provide full time protection against air loss for the legal life of the tire as well as extend the life of the tire by maintaining proper inflation and preventing under inflation.

How does Flat Free seal a hole in the tread of the tire?

Flat Free is drawn to the area of the escaping air. As the tire rotates and strikes the surface of the road, the hole is stretched open and the polyethylene chips and other fibers enter the cavity. The fibers wrap around the polyethylene chips and form a permanent and flexible plug, similar to the action of a beaver dam.

How does Flat Free prevent rim and bead leaks?

The escape of high pressure air from the tire into the atmosphere draws fibers and particles to the area of the escaping air. The leak is thus located and sealed.

What is the shelf life of Flat Free?

The shelf life of Flat Free is practically indefinite as long as the container is closed and no evaporation occurs.

Does Flat Free react chemically with the rubber tire?

Not at all. Flat Free is chemically inert.

Is Flat Free affected by extreme temperatures?

Flat Free has been tested to -35o F. (maximum testing ability of laboratory) and has not frozen. This is 67o below the freezing point of water. Furthermore, the tire sealant remains in a stable condition in heat so extreme, the tire itself will disintegrate.

Will Flat Free rust the rim of the tire?

Not at all. Flat Free contains anti-corrosive agents to prevent corrosion from occurring as well as to deal with any corrosion on the tire prior to installation.

Does Flat Free run to the bottom of the tire when the tire is not in motion?

No! Flat Free contains specially selected compounds which prevent this from happening. The sealant remains in place covering the interior of the tread at all times.

Can Flat Free be used in a tube tire?

Yes. However, it is vital to remove the penetrating object. Failure to do so will result in the object flexing in the tire and shredding the tube until it is destroyed. Although we can't guarantee the sealant to always permanently seal a puncture due to the condition of the tube, we do guarantee that as long as the tire is in motion, you will reach your destination, and then, should some damage have occurred to the tube, it may lose air.

Will Flat Free seal a puncture in the sidewalls of the tire?

No. There is too much flexing in the sidewalls and a temporary plug would be a safety factor.

Will Flat Free dry out in the tire?

No! Flat Free will always stay in the same condition as it was when it was inserted into the tire because the tire is a closed container and no evaporation of the liquid can occur.

Who are some of the users of Flat Free?

Users are many and varied. They include: construction companies, police forces, municipalities, golf courses, pallet manufacturers, truck fleets, airports, quarries, industry, utilities, RV manufacturers, new car dealers, used car dealers and more.

Can Flat Free be used in heavy-duty equipment?

Yes. Flat Free is designed for use in any pneumatic tire. For tires requiring an extra amount of protection, such as those on construction equipment, or tires used in rugged off-road environments, we have an industrial formulation.

What tools do I need to install Flat Free?

The tools needed are:

- Valve core remover (included)
- Tire pressure gauge
- Source of air

What is the difference between Flat Free and other similar products?

Other liquid sealants are either a paste, solvent, gel or water-based, which consequently dry out at low temperatures. Many of the liquid tire sealants congeal, which can cause balancing problems and alteration of the rubber composition. That, in turn, shortens the life of the tire.

Flat Free is Glycol based and will not break down or dry up inside the tire. Flat Free, if properly installed, will not affect tire balance.

What is the difference between Flat Free and other products sold in aerosol cans?

Aerosol products treat tires only after a puncture has occurred. Even then, they offer no more than a temporary seal. The tire will still have to be taken to a repair shop, where it will be broken down, the seal removed, the puncture patched and the tire remounted, all at the customer's expense. (The average cost for this service is $20 or more.) If the flat tire resulted in damage to the rim or sidewalls, the costs will be even higher. In respect to safety hazard, aerosol products are usually highly flammable. Flat Free is a preventative installed before the fact, and is nonflammable.

Is Flat Free hazardous?

No. Flat Free is environmentally friendly, non-hazardous, and non-flammable. It even meets the requirements of the California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65)

How does Flat Free affect the Manufacturer's Warranty?

Flat Free exceeds the Tire Manufacturer's Warranty by committing to a full reimbursement to the tire user who, after using Flat Free, experiences a puncture. Flat Free will not affect the Tire Manufacturer's Warranty.

What is the effect of Flat Free on the tires?

Flat Free extends the life of the tire. Being a Glycol based product, it protects the tire from excessive heat, prevents porosity, dry rot, and bead and rim leaks.

Does Flat Free extend the life of the tire? In what way and why? How does it perform?

After application, Flat Free remains liquid for the life of the tire and rim installation. As the tire rotates, centrifugal force spreads the solution evenly over the tread area of the tire. When any puncture occurs, thousands of interlocking fibers seal the opening and prevent any loss of air. This process is repeated each time a puncture occurs.

How do you install Flat Free and how long does it take?

Flat Free tire life extender is installed quickly and easily through the valve stem (average installation time is just minutes per tire). We have detailed instructions on how to install Flat Free.

Can Flat Free be used only in new or also in used tires?

Both. However if the tires are used, you should add approximately one more ounce of Flat Free than the chart indicates. Due to open pores of the used tire, some of the Flat Free will be absorbed into the tire.

How many punctures will a measured dose seal?

This cannot be pre-determined as size of opening, air pressure, tire surface area and where the puncture occurs in relation to rotation will vary the results.



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Flat Free 16 oz. Bottle Flat-Free Tire Sealant 16 oz. Bottle
ItemPriceQty 
#0456 $12.95

Flat Free 32 oz. Bottle Flat-Free Tire Sealant 32 oz. Bottle
ItemPriceQty 
#0457 $19.95

Flat Free 1 Gallon Jug Flat-Free Tire Sealant 1 Gallon Jug
ItemPriceQty 
#0458 $49.95

Flat Free 5 Gallon Pail Flat-Free Tire Sealant 5 Gallon Pail (Pump Not Included)
ItemPriceQty 
#0459 $179.95

Flat Free 55 Gallon Drum Flat-Free Tire Sealant 55 Gallon Drum
ItemPrice 
#0460 Call For Pricing

Flat Free Pump for 5 Gallon Pail Flat-Free Tire Sealant Pump for 5 Gallon Pail
ItemPrice 
#0461 Call For Pricing


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