
If you're looking to buy a fuel tank sealer, there are a few options available to you. You can buy a sealer from companies such as POR-15, Eastwood, Caswell, and O'Reilly Auto Parts. These companies offer fuel tank sealers that can be purchased online or in-store, depending on the retailer. When buying a fuel tank sealer, it is important to consider the size of your tank and the type of fuel you will be using, as some sealers are designed for specific fuel types and tank sizes. Additionally, proper preparation of the tank is crucial for achieving the best results, so be sure to follow the instructions provided by the manufacturer.
| Characteristics | Values |
|---|---|
| Brand | POR-15, Eastwood, Caswell |
| Type | Fuel Tank Sealer, Gas Tank Sealant Kit |
| Features | Stops rust, corrosion and leaks, resistant to fuels, alcohols and additives, seals minor leaks |
| Preparation | Use cleaner/degreaser, remove oil and gasoline, use acetone or lacquer thinner, use muriatic acid for rusty tanks |
| Application | Move liquid around to coat all parts of the tank, use enough to gel and flow, ensure proper ventilation |
| Colour | Silver, light gray |
| Volume | 8 fl. oz., 1 pint, 1 quart |
| Coverage | Enough to coat the inside of a 6-gallon fuel tank, 1-5 gallons, 20 gallons |
| Price | N/A |
| Customer Service | POR-15 has excellent customer service |
| Customer Reviews | Positive reviews for ease of use, sealing leaks, and effectiveness; some negative reviews for difficulty opening and pouring |
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What You'll Learn

Eastwood Gas Tank Sealant Kit
The Eastwood Gas Tank Sealant Kit is a product designed to rid your gas tank of rust and seal minor leaks, preventing the need for a replacement gas tank. It is an inexpensive way to repair your gas tank. The kit comes with well-written instructions, and Eastwood offers a 90-day 100% satisfaction guarantee.
The kit is available for purchase directly from the manufacturer, Eastwood, via their website. The website also features a product manual and a Material Safety Data Sheet for customers to download.
The product has received generally positive reviews. One customer review notes that the kit contains everything needed for the task, but recommends purchasing the larger kit for tanks over a few gallons in size. Another review highlights the importance of thoroughly cleaning the tank before applying the sealer, especially in the case of very rusty tanks.
The Eastwood Gas Tank Sealant Kit can also be purchased from third-party retailers and forums, such as IH8MUD Forum, where customers have shared their experiences and results using the product.
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POR-15 Fuel Tank Sealer
Before applying the sealer, the fuel tank must be free from plastic parts, contamination, and loose rust. It should also be cleaned with POR-15 Cleaner Degreaser and etched with POR-15 Metal Prep for the best adhesion. The degreaser removes grease, oil, and surface debris, while the metal prep coats the tank with zinc phosphate and etches the metal. Once the tank is clean, it should be drained, rinsed, and dried before applying the sealer. After coating all surfaces, the tank should be drained again to remove excess sealer.
The POR-15 Fuel Tank Sealer has received positive reviews from customers who have successfully sealed leaking fuel tanks. It is available for purchase on Amazon in 8 fluid ounce containers.
In addition to the sealer, POR-15 offers a range of fuel tank restoration products, including gas tank restoration kits, to help prevent leaks in rusted or new metal tanks.
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Caswell Epoxy Gas Tank Sealer
The Caswell Epoxy Gas Tank Sealer has a stronger bond than single-component products, with strengths of up to 3000 PSI. This higher strength reduces the need for a clinically clean surface as it adheres better to rough, rusty surfaces. The product's phenol novolac is more thixotropic, allowing it to 'hang' on the tank walls during the coating process, resulting in a thicker overall coating.
When recoating a gas tank, it is important to first remove any old, failed coating using a paint stripper containing methylene chloride. Drywall screws can be placed inside the tank and shaken vigorously to dislodge any loose particles of rust. After rinsing and drying the tank, duct tape or masking tape should be applied to any holes or porous areas to prevent the sealer from oozing out.
To apply the Caswell Epoxy Gas Tank Sealer, pour the required amount into the tank and seal the filler hole with plastic wrap and an elastic band. Swill the tank around to coat all surfaces, then remove the excess sealer by pouring it out and draining the tank upside down. For tanks with a built-in fuel filter, blow air into the fuel line port to clear any remaining sealer. Finally, place the tank in a warm place to cure overnight.
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O'Reilly Auto Parts Fuel Tank Liner
O'Reilly Auto Parts offers a range of fuel tank liners and sealers to cater to different needs and preferences. Here is some detailed information about the products:
POR-15 Fuel Tank Sealer
This fuel tank sealer is a high-tech product designed for metal surfaces. It is impervious to various fuels, including diesel, E10 ethanol, and high-alcohol content fuels. The sealer comes in silver and provides superior strength and fuel resistance. It acts as a liner, effectively preventing rust, corrosion, and small fuel leaks. It is important to ensure that the fuel tank is free from plastic parts, contamination, and structurally sound before applying the sealer. The manufacturer recommends using their POR-15 Cleaner Degreaser and Metal Prep products for optimal adhesion and preparation.
DAM Industries Fuel Tank Liner
O'Reilly Auto Parts also offers the DAM Industries Fuel Tank Liner, which comes with a 30-day limited warranty. This product is designed to provide a protective layer to fuel tanks, although specific details about its features and application are not readily available on the website.
Customer Reviews of POR-15 Fuel Tank Sealer
Customers who have used the POR-15 Fuel Tank Sealer have reported positive experiences. Many have successfully sealed leaking fuel tanks, including those with pinholes, and have praised its effectiveness and ease of use. Some customers highlight the importance of proper preparation and ventilation during application. One customer noted that the sealer fully sets within 48 hours. Another customer shared their detailed process of using the POR-15 Cleaner/Degreaser and Metal Prep products before applying the sealer, emphasizing the importance of multiple cleanings to remove gunk from the tank.
Application Tips for POR-15 Fuel Tank Sealer
The manufacturer of POR-15 products provides detailed instructions for optimal application. It is recommended to use their Cleaner Degreaser product to ensure the tank is free of grease, oil, and surface debris. The tank should then be treated with their Metal Prep product, which neutralizes rust and etches the metal surface for better adhesion. It is important to follow the instructions and take your time during the preparation process, as highlighted by a customer who achieved excellent results by allowing the Metal Prep to dry for several days before applying the sealer.
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Amazon Fuel Tank Sealers
Amazon offers a variety of fuel tank sealers for automotive restoration, including the POR-15 Fuel Tank Sealer and the KBS Coatings 53000 Auto Fuel Tank Sealer Kit. Both products are designed to stop rust, corrosion, and leaks, and are resistant to various fuels, alcohols, and additives.
The POR-15 Fuel Tank Sealer is available in an 8 fluid ounce container and can be purchased individually or as part of a kit that includes the sealer, metal prep, and cleaner degreaser. This product is formulated for metal and developed as a high-tech sealer that is impervious to all fuels, including diesel, E10 ethanol, and high alcohol content fuels. It comes in a silver colour and has superior strength with fuel resistance. Customers have reported positive results with this product, successfully sealing leaking fuel tanks and kerosene heater tanks with pinholes.
The KBS Coatings 53000 Auto Fuel Tank Sealer Kit contains everything needed to seal a tank of up to 25 gallons. The kit includes KBS Klean, RustBlast, Tank Sealer, gloves, and complete directions. The Tank Sealer permanently seals pinholes and weld seams and is impervious to all fuels, alcohol additives, and most solvents. Customers have also reported positive results with this product, particularly praising its three-step system and effectiveness in repairing old rusty tanks.
In addition to these two popular options, Amazon also offers other fuel tank sealers from brands like Red Kote and Permatex, providing a range of choices for customers looking to seal and protect their fuel tanks.
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Frequently asked questions
You can buy fuel tank sealer kits from Amazon, Eastwood, and Caswell Inc.
A fuel tank sealer kit typically includes a cleaner/degreaser, metal prep, and the sealer itself.
The price of a fuel tank sealer kit varies depending on the brand and retailer. Eastwood's kit costs $16.99, while Caswell Inc's kit is priced at $129.95.
The use of a fuel tank sealer kit may vary depending on the brand and the specific product. However, general instructions include cleaning and degreasing the tank, removing any plastic components, and then applying the sealer.
A fuel tank sealer kit can help rid your fuel tank of rust and corrosion, seal minor leaks, and extend the life of your fuel tank.











































