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Home > Tank Sealers

Auto Fuel Tank Sealer Kit

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Auto Fuel Tank Sealer Kit

The Auto Fuel Tank Sealer Kit contains everything you need to clean, prep & permanently seal up to 25 gallon tank. Detailed instructions included. Satisfaction guaranteed!

Part #: 53000-S

Usually Ships Same Business Day. +More Info

(+See 11 Questions)



KBS RustSeal

The KBS Fuel Tank Sealer Kit contains everything you need to seal a tank of up to 25 gallons.

Gold Standard Fuel Tank Sealer is a superior, single-component, ready-to-use fuel tank sealer.

Gold Standard Fuel Tank Sealer is specifically formulated to stop rust and corrosion by forming a tough, fuel impervious coating while simultaneously sealing small pinholes and weld seams.

This kit contains our KBS Klean (a water-based, heavy-duty, cleaner/degreaser) and KBS RustBlast (a powerful rust remover/metal etch) to obtain a permanently sealed, rust-free fuel tank. These KBS prep products are formulated to extend storage times by leaving a zinc phosphate film.

KBS RustSeal


  • KBS Klean - 2 Quarts (1/2 Gallon)
  • RustBlast - Quart
  • Tank Sealer - Quart
  • Black Nitrile Gloves
  • Stir Stick
  • Detailed Instructions


KBS RustSeal
  • Silver metallic permanent coating
  • Eliminates all rust and corrosion
  • Impervious to all fuels, alcohol additives and most solvents
  • Permanently seals pinholes and weld seams
  • Flexible to expand and contract
  • Non-flammable
  • Environmentally safe
  • Contains no Methyl Ethyl Ketone (MEK)


steel, aluminum & fiberglass fuel tanks • oil tanks • utility tanks • non-potable water tanks • diesel tanks

Search The KBS FAQ's

Part #

Auto Fuel Tank Sealer Kit ... #53000

Instructional Videos

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Questions and Answers
+See All Questions  |  +Ask a Question

Q: Will this kit work on a diesel tank?

Asked by:  - 8/31/2013

A: Yes, the KBS 3 Step Tank Sealing steps is used on Diesel Tanks all of the time. The Gold Standard Tank Sealer is completely impervious to diesel fuel.

Was this answer helpful?   44 of 48 Customer(s) found this Answer helpful.

Answer provided by:   (9/8/2013)

Q: Will this Tank Sealer Kit work on a small water tank used for a steam engine?

Asked by:  - 12/5/2013

A: Yes, the Auto Fuel Tank Sealer Kit will work on a tank 25 gallons or less that holds water used for a steam engine.

Was this answer helpful?   17 of 19 Customer(s) found this Answer helpful.

Answer provided by:   (12/6/2013)

Q: Will this product work on a fiberglass tank?

Asked by:  - 1/24/2014

A: Yes, the Auto Fuel Tank Sealer Kit will work on fiberglass tanks. Be sure to check out the section on fiberglass tanks in our Tank Sealer directions found HERE.

Was this answer helpful?   11 of 14 Customer(s) found this Answer helpful.

Answer provided by:   (1/28/2014)

Q: Can I use this on a Bio-Diesel fuel tank?

Asked by:  - 4/16/2014

A: Yes, the Tank Sealer is impervious to bio-diesel fuel.

Was this answer helpful?   11 of 11 Customer(s) found this Answer helpful.

Answer provided by:   (4/30/2014)

Q: I have a pickup with a 60 gallon steel auxiliary fuel tank for gasoline. Do you offer a kit for something of this size? Any help would be greatly appreciated.

Asked by:  - 4/30/2014

A: For a tank that size, we would recommend:

(1) Gallon of KBS Klean

(1) Gallon of RustBlast

(1) Gallon of Tank Sealer

You can also find out what to order based on your tank size on this Handy Chart.

Was this answer helpful?   10 of 10 Customer(s) found this Answer helpful.

Answer provided by:   (4/30/2014)

Customer Reviews - Others Say It Best +See All Reviews
review 313 Total Reviews Sorting:
Rating New Life for old Tank
This was a large gas tank from a boat (30 gallon) so a little extra work in getting it cleaned out of rust. I used a meratic wash a couple of times before useing supplied remover and that worked well. Had enough material to coat the interior well.
Reviewed by:  from McHenry Ill. - 8/25/2011
Rating Slick finish but I made a mess
It's a good product with easy to follow instructions. I only had two things that slowed me down. Living in the desert and trying to find a time frame where the temperature was cool enough was tough in August; when afternoon temps hover over 100 deg F. Also, draining the excess sealant out of the tank was very messy. Neither of these things keep me from recommending this product. I'm very satisfied. Thanks KBS.
Reviewed by: (Verified Buyer)  from Lancaster, CA. - 10/1/2011
Rating Great Product
Great service and delivery
Reviewed by: (Verified Buyer)  from Medford, OR. - 4/26/2012
Rating Amazing
I cant beleive this actually worked, especially with such a thin coat...I was very skeptical at first because i tried just about everything. I keep waiting for a leak, but so far so good. Thank you
Reviewed by:  from Painesville, Ohio. - 8/28/2013
Rating good product
Used this kit on a Farmall gas tank that had a good bit of rust from years of sitting, and from contaminated fuel. There was so much fine rust ending up in the fuel bowl that the tractor wouldn't run for more then 5 minutes. Time will tell how durable this coating is, but so far it's holding up great.
Reviewed by:  from Harrisburg, PA. - 6/2/2013
Rating Excellent Product
Delivery was timely, product was easy to use, and it did the job perfectly. Saved me a good bit of money not having to buy a new gas tank!!
Reviewed by:  from Louisiana. - 9/26/2013
Rating just what I was looking for
As long as you follow the directions it works great. I had some problems with it drying but it got better once I got a fan to dry it.
Reviewed by:  from Horicon, WI. - 4/30/2014
Rating I would buy JUST the sealer again if I could.
Gas tank sealer. Didn't want or need the other products.
Reviewed by: (Verified Buyer)  from Shepherdstown, WV. - 12/27/2016
Rating Good product very good instuctions
Very pleased with product and info
Reviewed by:  from Lakeville,Mn. - 4/26/2012
Rating Great product
Just follow the directions included. Take your time with each step. And make sure you drain the coating as much as you can! And make sure you use gloves with the coating also. That stuff is hard to get off. This is a great product! I used it for my 73 Plymouth duster's tank an work just like I wanted it to.! It was my first time sealing a gas tank and didn't know which Product to get. I'm happy I chose this one and I would definitely get it again if I had to do another one.
Reviewed by:  from Discovery bay. - 1/2/2013
Review Auto Fuel Tank Sealer Kit
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