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Home > Tank Sealers

Large Cycle Tank Sealer Kit

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Large Cycle Tank Sealer Kit

This great 3-Step cost savings kit designed for the repair of larger sized motorcycles, generators, lawn mowers, tractors, snowmobiles, or other tanks up to 12 gallons. Detailed instructions included. Satisfaction guaranteed!

Part #: 52050-S
Do You Need Mesh?:

Usually Ships Same Business Day.+More Info

(+See 2 Questions)

*Kit includes Black Nitrile Gloves, a Piece of BackBone (Reinforcing Mesh), Brush and Stir Stick.

Working on a Tank with a Previous Liner? Our PLUS KIT contains a Quart of Strip to quickly remove failed sealers. Go HERE for the PLUS KIT.


"I tried this product myself ... WORKED GREAT!!!!!"

Dave Stewart, Product Specialist for JP Cycles


The KBS Large Cycle Tank Sealer Kit contains everything you need to seal a tank of up to 12 gallons.

Gold Standard Fuel Tank Sealer, from the makers of KBS Coatings, is a superior, single-component, ready-to-use fuel tank sealer.

KBS RustSeal

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 with a unique Oxygen-Block Technology which reduces the occurrence of flash rust by over 80% and extends rust-free storage times by leaving a temporary protective coating in addition to a zinc phosphate film.


  • Quart of KBS Klean
  • Quart of RustBlast
  • Pint of Gold Standard Tank Sealer
  • Nitrile Gloves
  • Stir Stick
  • Detailed Instructions


  • Silver metallic permanent coating
  • Eliminates all rust & corrosion
  • Impervious to all fuels, alcohol additives & most solvents
  • Gold Standard Tank Sealer can withstand temperatures of up to 500° F.
  • Permanently seals pinholes & weld seams
  • Flexible to expand & contract
  • Non-flammable
  • Environmentally safe
  • Contains no Methyl Ethyl Ketone


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

Search The KBS FAQ's

Part #

Large Cycle Tank Sealer Kit ... #52050

Instructional Videos

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Questions and Answers
+See All Questions

Q: What is the "mesh" (that is an option on the order form) used for?

Asked by:  - 4/23/2014

A: You can use the piece of BackBone Reinforcing Mesh for exterior repair of pinholes or weld seams. Prior to patching, prep the outside and inside of the tank by using KBS Klean and RustBlast and allow all surfaces to dry completely. Begin by sealing the inside of the tank as outlined above. After sealing, immediately use any remaining Sealer to paint a thin layer on the exterior pinhole area(s). Using a suitably sized piece of BackBone Mesh, embed it directly into the wet Sealer and apply another thin coat of Sealer painting outward from the center. Let cure.

Was this answer helpful?   7 of 7 Customer(s) found this Answer helpful.

Answer provided by:   (4/23/2014)

Q: Can this product be used in diesel fuel tank?

Asked by:  - 11/7/2014

A: Yes, the Gold Standard Tank Sealer is completely impervious to diesel fuel and is used in diesel fuel tanks all of the time.

Was this answer helpful?   7 of 7 Customer(s) found this Answer helpful.

Answer provided by:   (11/9/2014)

Customer Reviews - Others Say It Best +See All Reviews
review 213 Total Reviews Sorting:
Rating Very good product. Good instructions and
Used the large kit to seal a gas tank on small farm tractor. Was easy to use and did a fine job. The instructions were thorough and easy to follow. A very satisfied customer.
  Did you find this helpful?    101 of 105 Found Helpful
Reviewed by:  from Williamsport, Pennsylvanis. - 2/25/2013
Rating Great Gas Tank Coating Product
Don't leave this product on a surface where you don't want it on. It is very durable and difficult to remove once it has dried.
  Did you find this helpful?    101 of 105 Found Helpful
Reviewed by:  from Blacksburg, Virginia. - 2/25/2012
Rating I would buy this product again
I needet a product to prevent rust from forming in the fule tank and cloging up the carb. And I found just what I needet! I gota tell you when I first seen the can I dident think it was going to be enought. But I folled the directions and didnt rush it and the job came out perfect, and there was plenty of coating to do the job.
  Did you find this helpful?    101 of 105 Found Helpful
Reviewed by:  from Palm Coast Florida. - 5/25/2012
Rating Great Product
Used the tank sealer kit on two Honda 3 wheelers that had been sitting in a barn for several years. Rust buildup in gas tanks was significant. I modified the process slightly as I wasn't sure if the rust remover would get all the rust out. After the cleaner, I soaked the tanks with apple cider vinegar for a week to break loose the majority of the rust. Was left with a little bit of rust and some flash rust when I used the Rust remover. It cleaned out the remainder and left me with a clean tank to use the sealer. One of my tanks had a baffle at the gas cap and it was a real pain getting the excess sealer out of the tank. I finally just tipped it on the side and used a paper towel to soak up as much as I could. Then turned the tank some more to spread out the rest and it worked ok. So far, the tank sealer seems to be holding up well. I'll never know how long it will last as I plan to sell the trikes.
  Did you find this helpful?    101 of 105 Found Helpful
Reviewed by: (Verified Buyer)  from Austin, TX. - 10/29/2014
Rating Motor cycle rebirth
Good instructions, easy to follow.[...]My next order will be for your painting kit for my old boat trailer.
  Did you find this helpful?    101 of 105 Found Helpful
Reviewed by:  from milwaukee,wi. - 9/27/2010
Rating 100% satisfied
worked great for me
  Did you find this helpful?    101 of 105 Found Helpful
Reviewed by:  from lafayette, la. - 5/31/2011
Rating Great product
Covers and holds well. I like that the prep materials are water based.
  Did you find this helpful?    101 of 105 Found Helpful
Reviewed by:  from decatur, il. - 9/25/2011
Rating Great fix for an old tractor
Excellent detailed instructions. Easy to follow and great tips. I liked that it gave me ample time to get a great leak repair and told me how long between treatments.
  Did you find this helpful?    96 of 98 Found Helpful
Reviewed by: (Verified Buyer)  from Murfreesboro, TN. - 6/16/2014
Rating Product was easy to use
I found the directions were easy to follow, and the product was easy to use.
  Did you find this helpful?    96 of 98 Found Helpful
Reviewed by:  from Salt Lake City, UT. - 5/1/2011
Rating Finally I got smart!
Works as promised. It doesn't get any better than that.
  Did you find this helpful?    96 of 98 Found Helpful
Reviewed by:  from Urbanna VA. - 1/26/2012
Review Large Cycle Tank Sealer Kit
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