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KBS Coatings 52050 Large Cycle Tank Sealer Kit, Seals Up to 12 Gallon Tank

4.4 4.4 out of 5 stars 279 ratings

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Purchase options and add-ons

  • The KBS Large Cycle Tank Sealer Kit contains everything needed to seal a tank of up to 12 gallons. It is an All Inclusive Kit!
  • This Kit Includes KBS Klean, RustBlast, Tank Sealer, Gloves and Complete Directions.
  • The Tank Sealer Permanently seals pinholes & weld seams and is Impervious to all fuels, alcohol additives and most solvents.
  • This Kit eliminates all rust and corrosion meaning no clogged fuel filters.
  • The Tank Sealer is flexible and able to expand and contract with your tank.
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$27.67 ($0.22/Fl Oz)
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From the manufacturer

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About Us

KBS Coatings was founded in the heartland of America by key personnel having collectively over 85 years of experience in material science formulation, manufacturing and distribution of coatings all around the world.KBS Coatings growing success comes from its commitment to research, ability to evolve and innovate, manufacturing and its revolutionary rust stopping products. The addition of never seen before colors of Safety Blue, Off-White, Oxide Red, Cat Yellow, Galvanized Steel and Green to our RustSeal paint pallete has led xto one of the advanced non-porous coating technology break-through others have yet to achieve.

Our products and permanent results have placed KBS Coatings at the forefront of Rust Prevention Products, Gas Tank Sealers, Clear Coat Paints, Extreme Temperature Coatings and much more for literally thousands of different types of applications. Our mission at KBS is simple --- make it even better! Our promise to you is that our exclusive KBS product line will always keep pace with the technology and offer revolutionary choices with uncompromised quality.

Product Description

The 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.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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KBS Coatings 52050 Large Cycle Tank Sealer Kit, Seals Up to 12 Gallon Tank


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What's in the box

  • 1 Quart - KBS Klean
  • 1 Quart - RustBlast
  • 1 Pint - Tank Sealer
  • Brush
  • Stir Stick
  • Gloves
  • Detailed Directions
  • Looking for specific info?

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    279 global ratings

    Customers say

    Customers like the performance, ease of use, and quality of the auto accessory. For example, they mention that it works well, it's simple to understand, and the instructions are well written. That said, opinions are mixed on rust and seal.

    AI-generated from the text of customer reviews

    35 customers mention31 positive4 negative

    Customers like the performance of the auto accessory. They say it works well on rusty motorcycle tanks, goldwing tanks, and other vehicles. Some say the product is time consuming but the results are great. Overall, most are satisfied with the performance and quality of the product.

    "...Sealer worked great for me, tank is back on the generator and working great." Read more

    "Products worked well. All products was ample enough for my project of restoring an 8 gallon fuel tank." Read more

    "Have a burial tractor. Needed to seal it. And get the rust out. Work great." Read more

    "...Took a risk on this kit, Worked AWESOME. Fixed the rusted spots inside, now I just let chill for 4 days, then refill. Awesome product...." Read more

    14 customers mention11 positive3 negative

    Customers find the auto accessory fairly simple to use and do a great job of renewing their tank. They say the sealer is fantastic, goes on easy, and is easier than the lead they soldered in to the holes. Customers also say the instructions are very well written, so if you follow them you can't fail.

    "...-The sealer is fantastic. It goes on easy and has a fairly long work time to get the tank coated...." Read more

    "...The product is well represented and simple to use...." Read more

    "...out, the etching and coating steps went very well and were quite easy to do, My fuel tank now looks like a new tank inside...." Read more

    "...this product was a complete waste of time and money. do not buy it." Read more

    6 customers mention6 positive0 negative

    Customers are satisfied with the quality of the auto accessory. They mention it's a great product, feels good to hold, and is of good quality.

    "...This multi-speed bullet is really nice, it feels good to hold and good elsewhere ;)..." Read more

    "Great product but be warned that curing takes 4 days...." Read more

    "Great product..." Read more

    "Great Product...." Read more

    5 customers mention5 positive0 negative

    Customers are satisfied with the appearance of the auto accessory. For example, they mention it looks nice, is well represented, and has an absolutely perfect finish. Some appreciate the crystal clear finish.

    "...It works very well and never disappoints, as some dates might. It looks nice and is a bargain for the price. So you should pick one up tod" Read more

    "...and etching steps are absolutely necessary and the inside of the tank looked great after etching. I feel like my rust problem is solved...." Read more

    "...The two cleaners did their part and the tank looked great when I poured in the can of sealer...." Read more

    "...tank, 3 years ago.. Still going strong.. Fuel system in bike, crystal clear.. Company send me the wrong amount of tank sealer by mistake...." Read more

    4 customers mention4 positive0 negative

    Customers are satisfied with the coating of the auto accessory. They mention that it's tough and should last a long time.

    "...Seems like a tough coating that should last a long time. The stubborn rust in the corners of the tank were covered over and sealed in...." Read more

    "...Used this kit on a 13 gallon tractor gas tank. Had plenty of coating left over" Read more

    "...No rust left after the rust treatment. The sealer looks to have coated great as well. Very impressed." Read more

    "Used this to derust and seal auto fuel tank . Creates a tough surface coating." Read more

    3 customers mention3 positive0 negative

    Customers are satisfied with the cleaning of the auto accessory. They mention that it cleans pretty good, but the cleaning and etching steps are absolutely necessary.

    "...The cleaning and etching steps are absolutely necessary and the inside of the tank looked great after etching. I feel like my rust problem is solved...." Read more

    "Cleans pretty good, didn't get everything out and I used hot water, along with aquarium rocks and the cleaner and shook it around for about an hour...." Read more

    "...Followed the directions carefully. It cleaned it up beautifully. No rust left after the rust treatment...." Read more

    17 customers mention6 positive11 negative

    Customers are mixed about the rust of the auto accessory. Some mention that it fixes the rusted spots inside, while others say that it didn't do a thing.

    "I did a 7gal generator gas tank. It was pretty rusty inside, I put a handful of half inch nuts and bolts in the tank and drove around with it in the..." Read more

    "...Took a risk on this kit, Worked AWESOME. Fixed the rusted spots inside, now I just let chill for 4 days, then refill. Awesome product...." Read more

    "...Previous liner looked reddish brown. Peeling up and rusting. Blocking some fittings. I used high quality stripper and used 3 foot chain inside tank...." Read more

    "...The tank bottom was the most heavily rusted, with a 1/4 inch thick layer of caked rust...." Read more

    8 customers mention3 positive5 negative

    Customers are mixed about the seal. Some mention that it's fantastic and thick, while others say that it started leaking again.

    "...apparently the sealer was breaking down, becoming part of the gas and getting into the carbs. this product was a complete waste of time and money...." Read more

    "...-The sealer is fantastic. It goes on easy and has a fairly long work time to get the tank coated...." Read more

    "...When I looked in after the 4 days, the sealant had broken and bubbled up in several places and rust was rolling around underneath the layer of..." Read more

    "...any fuel, and it was a total waste of money and time, my gas tank started leaking fuel an hour after adding fuel, very disgusted, now I get to start..." Read more

    Large tank kit
    5 Stars
    Large tank kit
    Used 12 gallon kit on 15 gallon tank looks like I barely had enough but it did the job,my thought was the one quart size does 25 gallon tank and that may have been bit too much
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    Top reviews from other countries

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    carlo brouard
    5.0 out of 5 stars Produit de très haute qualité
    Reviewed in Canada on September 1, 2020