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Fuel Tank Liner

KREEM FUEL TANK LINER is designed for use as a preventive maintenance product in
metal tanks new and old; containing gasoline, gasohol, or diesel. KREEM TANK LINER has a
unique formulation with extremely rapid set-up that prevents leakage from hairline cracks and
seam pinholes by coating the tank’s inner surface with a fuel resistant elastomer. Not for plastic
tanks. KREEM is NOT compatible with all fiberglass tanks. You must spot test before use.
Read the Kreem “how to” brochure for detailed application instructions.

Supplied as a liquid, quickly cures to a tough, white elastomer compound. This newly-advanced formula offers
better adhesion, faster set-up, and smoother finish. Resists leaded and unleaded gasoline, gasohol, octane
boosters, and fuel additives at recommended concentrations


DESCRIPTION; Pint Part A & 1/2 Pint Part B

Dissolves Rust – Etches Metal KREEM Tank Prep is a two part system to prepare metal fuel tanks before
coating with KREEM FUEL TANK LINER. Used as directed Tank Prep will remove rust and etch metal surface
to ensure maximum adhesion.

1. Read warning statements on this label and on Part B label.

2. Remove the tank from the vehicle, remove any valves and petcocks and stop all outlets.

3. Wash out tank with hot soapy water. If the tank is badly rusted and has loose flaky rust add stones or nuts
and bolts to agitate to remove loose rust.

4. For new tanks, it is important to remove oily protective coating before using Tank Prep. An industrial strength
detergent or commercial degreaser/cleaner like KREEM’s New Tank Cleaner/Degreaser or acetone should be used.

5. Pour Tank Prep A into tank and add 5 gallons of warm water. Tank Prep A works best when
tank is completely full and in contact with all metal surfaces. If this is not possible you should turn
the tank to different positions so that the solution has extended contact with all metal surfaces.

6. Leave Tank Prep A in the tank until all the rust is dissolved and the metal is etched to a dull gray finish.
The time required will depend on the amount of rust in the tank. New tanks can be etched in 4 hours.
Rusty tanks will take longer; we suggest overnight.


7. Drain Tank Prep A solution into a plastic container and check tank. If all rust is removed
proceed to step B. If rust is still present add saved Tank Prep A solution to tank again until
rust is removed.

8. Flush the tank with clean water until rinse water no longer foams and all traces of Tank
Prep are removed. Remove all excess water.

9. Immediately rinse tank interior with full-strength Tank Prep B and agitate to ensure thorough treatment.
 Drain out all excess Tank Prep B.

10. Immediately seal the tank with KREEM FUEL TANK LINER according to label directions.


It is critical that the inside of the tank have an oil-free surface without rust to insure proper adhesion.
We recommend Kreem Tank-Prep Kit A & B, our two part system for rust removal and metal etching.

1. Wash out tank with hot soapy water. If the tank if badly rusted and has loose flaky rust add stones or
length of basic hardware chain and agitate to remove the loose rust. For new tanks it is important to remove the oily
protective coating. An industrial strength detergent, or a commercial degreaser/cleaner like KREEM’s
new Tank Cleaner/Degreaser, acetone, M.E.K. should be used.

2. After completing step 1, and to obtain maximum adhesion, the surface rust should be removed and
the metal surface etched, this can be accomplished by using Kreem Tank Prep A & B Kit, or some
other acid based rust remover that also etches metal. Repeat if necessary until all rust is removed.

3. Rinse tank with water until all traces of Tank-Prep A (acid etch) are removed. Drain out excess water.
Using Tank-Prep B (acetone or M.E.K.) rinse thoroughly removing trace amounts of water.
CAUTION: these chemicals are flammable. The tank is now ready for immediate coating.


Shake or stir well before use. Keep container tightly closed when not in use.
Stop all outlets except fill spout.

2. Pour Liner into tank and coat entire inner surface by slowly rotating tank in all directions.When all surfaces
have been completely coated, a generous excess should remain. Let tank stand for 8-10 minutes with spout
open, then close spout and slowly rotate tank allowing excess to re-coat all surfaces. Let tank stand for an
additional 8-10 minutes with spout open however, this time on a different side. Repeat this until the tank has the
desired coating. Do not allow coating to drain to one area and dry. Drain off excess coating for later use.

3. Drain any excess, remove all stops and allow to air-dry in a well ventilated area for at least 24 hours. A nozzle
from a low pressure air compressor blowing lightly into the fuel spout and out another opening will greatly
reduce setup time.

4. For extra protection, air-dry first coat for 6 hours or longer and repeat step 2 of application process.

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