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FAQ's

US Standard Gas Tank Sealer

Fuel Tank Sealer
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U.S. Standard Fuel Tank Sealer(tm) was formulated and developed in our own laboratories due to the demand for a high-tech sealer impervious to all fuels, including the new Stage II fuels which have a higher alcohol content. It has superior strength and fuel resistance, and does not contain Methyl Ethyl Ketone, a highly flammable and deadly carcinogen (cancer-causing). In fact, U.S. Standard Fuel Tank Sealer(tm) is non-flammable and is environmentally safe.



Features:
  • Resistant to all Fuels, Alcohol, Additives and Solvents
  • Stops Rust, Corrosion and Leaks Permanently
  • Seals Pinholes and Seams - POR-15 Tough
  • Chemically Bonds to Metal Surfaces (event rusted)
  • Permanently Flexible
  • Light Gray Color for easier viewing inside the tank
  • Available in Quarts, capable of sealing a 25 Gallon Tank

Who uses Gas Tank Sealer?
  • People who restore, rebuild, or repair cars, boats, or other vehicles
  • Companies with gasoline storage tanks
  • Non-restoration people who have gas tanks in need of repair

What are some typical problems requiring need of sealer?
  • Tanks may be very rusty inside due to years of non-use.
  • Tanks may have gunk or caked sludge inside, which must be removed and the tank walls must then be coated.
  • Tanks may have pinhole leaks or leaking seams.
  • Tanks may have a combination of the above.
Can my tank be treated without having to remove it from my car?

Usually not. Occasionally a tank will have a small leak on the bottom which can be treated without removal, but this is the exception. Proper gas tank sealing almost always requires tank removal from the vehicle. You claim US Standard Gas Tank Sealer is "The Best Gas Tank Sealer Money Can Buy". Why is it better than the others?

It's better because it seals pinholes and seams far better than any other sealer and has great intrinsic film strength, which the others do not have. It's film coating is non-porous, keeping moisture permanently away from the metal, and in this way prevents future rusting.

Does US Standard Gas Tank Sealer contain "rust inhibitors" that other sealers claim to have?

ANY chemical can be called a rust inhibitor, since practically all coatings will stop rust for a short period of time until they are destroyed by moisture or wear and tear. Some types of oil, especially fish oil, have been known to inhibit rust for a limited period of time, also. But the only real way to stop rust permanently is to keep moisture away from metal with a non-porous coating that will get stronger as it is exposed to moisture. Only US Standard Gas Tank Sealer, does this, and that's why it's the best product.

How many types of Gas Tank Sealer are there?

There are two types of tank sealer other than US Standard, and they are similar to each other in basic structure:
A. PVC type sealer is similar to the adhesive used to seal PVC pipe as used in waste disposal lines, sewer lines, etc. This material is white in color, coats well, but doesn't fill holes or seams well because it has poor film strength and is essentially an adhesive rather than a coating. It is highly flammable and has strong ketone vapors which are dangerous to people with heart conditions.
B. PVC-type non-curing sealer is yellow in color and will dissolve in gasoline containing alcohol and other additives, which makes it dangerous to use in ANY gas tank. Adheres well but never loses its stickiness, and it can easily be scratched off with your fingernail. Contains highly hazardous ketone solvent M.E.K.

What tank preparation is required before using US Standard Gas Tank Sealer?

  • If tank contains sludge, gums, varnishes, or rust due to years of neglect or non-use, it should first be cleaned thoroughly with POR-15 Marine=Clean to remove all foreign matter.
  • Mix 1 quart Marine=Clean with 1 quart hot water, put in tank for 24 hours and agitate frequently. Repeat process until tank is clean.
  • Next, use POR-15 Metal-Ready to etch inside surface of tank and to remove all rust.
  • Next, rinse tank thoroughly with water several times to remove all remnant chemicals and let dry.
  • Tank must be completely dry inside before using U.S. Standard Gas Tank Sealer.

    Should I always use a Gas Tank Sealer after thoroughly cleaning out my tank?

    No. Gas tank sealer should be used as a last resort, and is not always necessary. Gas tanks that are rust-free and have no pinholes or leaks may not need sealing at all. They should, however, always be kept full of gasoline, which prevents condensation and further rusting.

    If vehicles are not used frequently, gas tanks should be treated with POR-15 Gasoline Preservative/Stabilizer, which will keep gasoline fresh for more than two years and insure quick starts even after months of non-use.

    Can U.S. Standard Gas Tank Sealer be re-used?

    No. Used Gas Tank Sealer should be discarded because it absorbs moisture from the atmosphere during application and will not adhere properly a second time.

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