Best Gas Tank Sealer in 2023 (Review)

Sometimes it might be quite difficult to find the best gas tank sealer. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this gas tank sealer buying guide.

Our Favorite Picks:

#	Preview	Product
1		KBS Coatings 52000 Cycle Tank Sealer Kit, Complete Kit - Seals Up to 5 Gallon Tank	Check Price
2		POR-15 Fuel Tank Sealer, Stops Rust, Corrosion and Leaks, Resistant To All Fuels, Alcohols and...	Check Price
3		KBS Coatings 53000 Auto Fuel Tank Sealer Kit, Seals Up to 25 Gallon Tank	Check Price
4		KBS Coatings 5200 Gold Standard Tank Sealer - 8 fl. oz., Silver	Check Price
5		KBS Coatings 5400 Gold Standard Tank Sealer - 1 Quart	Check Price
6		J-B Weld 8217 TankWeld Gas Tank Repair - 1 oz.,Dark Grey	Check Price
7		POR-15 Fuel Tank Repair Kit, Car and Truck Gas Tank Repair, Superior Strength and Fuel Resistance,...	Check Price
8		Kreem Products 19-103 Black Fuel Tank Liner Combo Pack, 3 Pack	Check Price
9		POR-15 Fuel Tank Sealer, Stops Rust, Corrosion and Leaks, Seals Pinholes and Seams, Non-porous,...	Check Price
10		J-B Weld 2110 Metal Fuel Tank Repair Kit , Gray	Check Price

10 Top Gas Tank Sealer Reviews:

Bestseller No. 1

KBS Coatings 52000 Cycle Tank Sealer Kit, Complete Kit - Seals Up to 5 Gallon Tank

• The KBS Cycle Tank Sealer Kit contains everything needed to seal a tank of up to 5 gallons
• Includes KBS Klean, Rust Blast and Tank Sealer
• Permanently seals pinholes & weld seams
• Once cured, Impervious to all modern day fuels, alcohol additives & most solvents
• Flash point: 40.0 degrees_celsius

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Bestseller No. 2

POR-15 Fuel Tank Sealer, Stops Rust, Corrosion and Leaks, Resistant To All Fuels, Alcohols and Additives, 8 Fluid Ounces

• ✅ WHY CHOOSE POR-15 FUEL TANK SEALER? POR-15 Tank Sealer is specifically formulated to provide a permanent seal with superior strength and resistance to all fuels, including the new Stage II fuels which have a high alcohol content.
• ✅ STOP RUST - POR-15 is the gold standard in rust prevention, and our Fuel Tank Sealer is no exception. Formulated and developed in our laboratories due to the demand for a high-tech sealer impervious to all fuels, POR-15 is essential in preventing rust and corrosion for long lasting results.
• ✅ PREP FOR SUCCESS - Drain all fuel from tank, remove tank from vehicle, and clean out tank. All fuel tanks are dirty and have to be cleaned out before sealing. If you try to seal a tank without cleaning it first, the new coating will fail, because Tank Sealer won’t stick to gum and varnish. After taking preliminary steps for cleaning and prep, use as directed for an excellent finish.
• ✅ WHEN DO I NEED THIS? – POR-15 Fuel tank sealer is perfect for automotive restoration. Renew your car, truck, or motorcycle fuel tank through our simple, single application coating. Allow proper time to cure for impervious protection from fuel, alcohol, corrosion and rust.
• ✅ OUR SATISFACTION COMMITMENT - At POR-15 we strive to bring the ultimate in rust prevention. Known for the unbeatable 3-step stop rust system, POR-15 is trusted by DIY & Professionals. We are committed to innovation, quality control, and excellent customer service. If you are not satisfied, let us know & we’ll do everything we can to make it right!

Check Price

Bestseller No. 3

KBS Coatings 53000 Auto Fuel Tank Sealer Kit, Seals Up to 25 Gallon Tank

• The KBS Auto Fuel Tank Sealer Kit contains everything needed to seal a tank of up to 25 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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Bestseller No. 4

KBS Coatings 5200 Gold Standard Tank Sealer - 8 fl. oz., Silver

• Package Dimensions: 7.62 H x 7.62 L x 7.62 W (centimetres)
• Country of Origin : United States
• Package Weight: 0.226 kilograms
• Flash point: 40.0

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Bestseller No. 5

KBS Coatings 5400 Gold Standard Tank Sealer - 1 Quart

• Silver metallic permanent coating
• Eliminates all rust & corrosion
• Impervious to all fuels, alcohol additives & most solvents
• Permanently seals pinholes & weld seams
• Flexible to expand & contract

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Bestseller No. 6

J-B Weld 8217 TankWeld Gas Tank Repair - 1 oz.,Dark Grey

• J-B WELD TANKWELD: A hand mixable, steel reinforced two part epoxy putty stick that is formulated to repair and rebuild various holding tanks. J-B Weld TankWeld is chemical resistant against petroleum, hydraulic fluids and many other harsh chemicals once fully cured. TankWeld is certified by the NSF and is safe for contact with potable water.
• CURE AND SET TIME: After kneading the two part formula together by hand, it takes 5 minutes to set and cures in 1 hour. J-B Weld TankWeld set and cure color is dark grey.
• PRODUCT FEATURES AND STRENGTH: J-B Weld TankWeld has lap shear strength of 900 PSI. TankWeld can be molded, shaped, sanded, drilled and tapped.
• MAJOR USES: Fuel tanks, metal radiators, metal fuel or chemical tanks, metal housings and stripped threads. Surface applications include: iron, stainless steel, copper, brass, aluminum, and bronze.
• DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.

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Bestseller No. 7

POR-15 Fuel Tank Repair Kit, Car and Truck Gas Tank Repair, Superior Strength and Fuel Resistance, Stop Rust, Corrosion, and Seal Pinhole Leaks, 32 Fluid Ounces

• ✅ WHY CHOOSE POR-15 FUEL TANK REPAIR KIT? Our all-in-one fuel tank repair kit seals up to a 25 gallon fuel tank & in typical POR-15 fashion, will stop and prevent rust, corrosion, and seal pinhole leaks. With superior strength and fuel resistance your fuel tank will be impervious to all additives, fuels, including the stage II fuels with a higher alcohol content.

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Bestseller No. 8

Kreem Products 19-103 Black Fuel Tank Liner Combo Pack, 3 Pack

• 3-step system seals and protects tank Prevents rust and corrosion, stops leaks
• Fit type: Vehicle Specific

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Bestseller No. 9

POR-15 Fuel Tank Sealer, Stops Rust, Corrosion and Leaks, Seals Pinholes and Seams, Non-porous, Flexible Film, 16 Ounces

• ✅ WHY CHOOSE POR-15 FUEL TANK SEALER? POR-15 Tank Sealer is specifically formulated to provide a permanent seal with superior strength and resistance to all fuels, including the new Stage II fuels which have a high alcohol content.
• ✅ STOP RUST - POR-15 is the gold standard in rust prevention, and our Fuel Tank Sealer is no exception. Formulated and developed in our laboratories due to the demand for a high-tech sealer impervious to all fuels, POR-15 is essential in preventing rust and corrosion for long lasting results.
• ✅ PREP FOR SUCCESS - Drain all fuel from tank, remove tank from vehicle, and clean out tank. All fuel tanks are dirty and have to be cleaned out before sealing. If you try to seal a tank without cleaning it first, the new coating will fail, because Tank Sealer won’t stick to gum and varnish. After taking preliminary steps for cleaning and prep, use as directed for an excellent finish.
• ✅ WHEN DO I NEED THIS? – POR-15 Fuel tank sealer is perfect for automotive restoration. Renew your car, truck, or motorcycle fuel tank through our simple, single application coating. Allow proper time to cure for impervious protection from fuel, alcohol, corrosion and rust.
• ✅ OUR SATISFACTION COMMITMENT - At POR-15 we strive to bring the ultimate in rust prevention. Known for the unbeatable 3-step stop rust system, POR-15 is trusted by DIY & Professionals. We are committed to innovation, quality control, and excellent customer service. If you are not satisfied, let us know & we’ll do everything we can to make it right!

Check Price

SaleBestseller No. 10

J-B Weld 2110 Metal Fuel Tank Repair Kit , Gray

• Tank Weld: Our Metal Fuel Tank Repair Kit Has All You Need For Making Professional Quality, Permanent Repairs With State Of The Art Components And Easy To Follow Instructions.
• Count On Us: For More Than 40 Years, Our Products Have Earned A Loyal Following From People Who Take Pride In Their Work. With Each Product We Innovate, We Continue To Provide The World'S Strongest Bond For Your Projects.
• Simple To Use: No Removal Of Gas Tank Is Required To Stop Leaks. Easily Fix Holes Up To 3/8" Diam. Or Cracks Up To 4" Long. Includes Epoxy Putty, Fiberglass Cloth, Sandpaper, And Applicator.
• Versatile & Dependable: Great For Gas Tanks, Metal Tanks, Oil Pan Repairs And More. Professionals, Mechanics And Avid Diyers Know J-B Gets The Job Done.

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Last update on 2023-05-27 / Affiliate links / Images from Amazon Product Advertising API

How to find the best gas tank sealer?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best gas tank sealer for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good gas tank sealer recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

• What features does the gas tank sealer need to have to be perfect for my needs?
• What is my budget?
• Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for gas tank sealer to find what you’re looking for:

Brand

In some cases, the brand of gas tank sealer is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given gas tank sealer are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about gas tank sealer are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare gas tank sealer quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best gas tank sealer can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.