
Fuel tank sealers are products that can be used to repair and extend the life of fuel tanks. They are designed to prevent and repair rust, corrosion, and small fuel leaks. There are a variety of fuel tank sealers on the market, including the POR-15 Fuel Tank Sealer, the KBS Coatings kit, and the Caswells Dragon Blood kit. These products typically involve cleaning and preparing the fuel tank, applying the sealer, and allowing it to dry. While some people have reported success with these products, others have expressed concerns about their long-term reliability. The effectiveness of fuel tank sealers may depend on various factors, such as the condition of the fuel tank and the type of fuel used.
| Characteristics | Values |
|---|---|
| Purpose | To extend the life of fuel tanks by creating a barrier against rust, corrosion, and leaks |
| Effectiveness | Positive reviews for products like POR-15 Fuel Tank Sealer, Gold Standard Fuel Tank Sealer, and Caswells Dragon Blood Kit |
| Ease of Use | Some products require extensive preparation, while others are easier to apply |
| Cost | Prices vary, with kits ranging from $50 to over $100 |
| Durability | Some users express uncertainty about long-term reliability |
| Limitations | May not be suitable for all tank materials and must be free from contamination before application |
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$44.99 $49.95
What You'll Learn
- The KBS Coatings kit can save rusty, 50-year-old gas tanks
- POR-15 Fuel Tank Sealer is a high-tech sealer, impervious to all fuels
- Caswells Dragon Blood kit works well with heat and vibrations
- Eastwood offers a $50 kit, while POR 15 offers a similar kit for $105
- The `washers/chains/screws/nuts and bolts and shake` method may not work for large tanks

The KBS Coatings kit can save rusty, 50-year-old gas tanks
Rust in a gas tank usually calls for a replacement, but the KBS Coatings kit can save rusty, 50-year-old gas tanks. The KBS Coatings kit includes everything needed to clean and coat a 25-gallon tank while also helping to prevent future rust. The kit contains a gallon-size 3-step system that includes enough products to clean, prep, and seal any 200 sq. ft. area with 2 coats of paint coverage.
The first step is to clean the tank. The tank must be as clean as possible for the product to work best. The user must ensure that the tank is clear of any loose debris. The user can use an engine stand as a makeshift rotisserie to make it easier to distribute the sealer inside the tank. A Metro blower can also be used to dry the inside of the tank.
The second step is to prep the tank. The tank must be completely dry before applying the KBS Coatings Rust Blaster. The directions say to let this product soak for 30 to 60 minutes. After the allotted time, the user can drain the Rust Blaster and thoroughly rinse the tank. Then, the user must let the tank dry completely before starting the coating process.
The third step is to seal the tank. Once the tank is completely dry, the user can apply the Gold Standard Fuel Tank Sealer. The instructions say to pour the contents of the entire can into the tank before working the sealer around the inside of the tank for 30 minutes. Then, the user can drain any excess sealer and let the tank dry for a full 48 hours.
The KBS Coatings kit offers a cost-effective and quick solution to restoring rusty, 50-year-old gas tanks. The kit includes all the necessary products and detailed instructions for a professional and long-lasting finish.
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POR-15 Fuel Tank Sealer is a high-tech sealer, impervious to all fuels
Fuel tank sealers are an effective way to save money by restoring rusty gas tanks instead of replacing them. POR-15 Fuel Tank Sealer is a high-tech sealer, formulated for metal and impervious to all fuels, including diesel, E10 ethanol, and high alcohol content fuels. It is available in silver and provides superior strength with fuel resistance.
The POR-15 Fuel Tank Sealer acts as a liner and stops rust, corrosion, and small fuel leaks. It is important to note that before applying the sealer, fuel tanks must be free from plastic parts, contamination, and loose rust. Old sealers should be removed, and the tank should be cleaned with POR-15 Cleaner Degreaser and etched with POR-15 Metal Prep for optimal adhesion.
To use the POR-15 Fuel Tank Sealer, first, pour the entire bottle of POR-15 Metal Prep into the tank to dissolve rust and etch the metal for better adhesion. Then, coat the tank with zinc phosphate. After the tank is clean, drain and rinse it thoroughly with water, ensuring it is completely dry.
Once the tank is dry, pour in the entire can of POR-15 Fuel Tank Sealer. After all surfaces have been coated, drain the tank for about an hour to remove any excess sealer. Finally, use fuel preservation and stabilizer to maintain your fuel system and avoid "stale gas" issues.
Users of the POR-15 Fuel Tank Sealer have reported excellent results, with some specifically mentioning its effectiveness in sealing small pinhole leaks and restoring rusty fuel tanks. It is important to follow the directions carefully and wear gloves during the application process, as the sealer can be challenging to remove from the skin if it hardens.
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Caswells Dragon Blood kit works well with heat and vibrations
Fuel tank sealers are a great way to extend the life of your fuel tank and prevent rust, corrosion, and small fuel leaks. Caswell's Dragon Blood kit is one such product that can help with this. The kit includes a range of products, including a gas tank sealer, that can help repair and restore your fuel tank.
The Dragon's Blood Gas Tank Sealer from Caswell is a great option for those looking to repair and seal their fuel tanks. It is a red-coloured sealer, which makes it easy to identify any missed areas during application. The sealer is formulated with phenol novolac chemistry, which gives it excellent ethanol resistance and the ability to withstand racing fuels and alcohol. One of the standout features of this sealer is its versatility in bonding. It can bond to almost any surface, including wood, plastic, rubber, concrete, and metals. This makes it a versatile option for repairing a wide range of fuel tanks.
The Dragon Blood kit from Caswell also includes other products that work well together to provide a comprehensive solution for fuel tank repair and restoration. The kit includes a vibratory tumbler media, which is ideal for removing rust and other contaminants from the tank before applying the sealer. The kit also includes wet/dry sandpaper, which can be used to smooth and prepare the surface of the tank, ensuring the best adhesion for the sealer.
Additionally, the kit offers high-temperature coatings, which are essential for fuel tanks that operate at high temperatures. These coatings can withstand the heat and vibrations generated by the engine, providing a durable and long-lasting solution. The combination of the Dragon's Blood Gas Tank Sealer and the other products in the kit ensures that your fuel tank is properly sealed, protected, and able to withstand the demands of your vehicle.
Overall, Caswell's Dragon Blood kit is a comprehensive solution for fuel tank repair and restoration. The gas tank sealer included in the kit is versatile, ethanol-resistant, and capable of bonding to a wide range of surfaces. The additional products in the kit, such as the vibratory tumbler media and high-temperature coatings, ensure that your fuel tank can withstand heat and vibrations while being properly sealed and protected. By following the instructions and properly preparing the surface of the tank, you can achieve excellent results with this kit.
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Eastwood offers a $50 kit, while POR 15 offers a similar kit for $105
Fuel tank sealers are a great way to save money by repairing rusty, old gas tanks instead of replacing them. Eastwood offers a $50 kit, while POR 15 offers a similar kit for $105. The POR 15 kit includes a 4-step process to clean, prepare and seal your vehicle's gas tank. The kit contains the POR-15 Cleaner Degreaser to remove gum, sludge, and varnish, the POR-15 Metal Prep to remove rust and prepare the tank for sealing, the POR-15 Fuel Tank Sealer to permanently seal the tank, and detailed instructions to ensure the job is done right.
The POR 15 Fuel Tank Sealer 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 is designed to work in metal gas tanks only and acts as a liner to stop rust, corrosion, and small fuel leaks. The product has received positive reviews, with many customers claiming it is an awesome product that brought their old, rusty motorcycle tanks back to life.
The Eastwood kit is a more affordable option, with the POR15 Anti-Rust Fuel Tank Sealer (Half-Pint) priced at $50. The product has received mixed reviews, with some customers claiming it is a great product that is easy to use and perfect for restoration work, while others have stated that it bubbled inside the tank and did not completely remove rust.
Both kits offer a 90-day 100% Satisfaction Guarantee, allowing customers to return the product for a refund or replacement if they are dissatisfied. Ultimately, the decision between the two kits depends on your budget and the specific needs of your fuel tank repair project.
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The `washers/chains/screws/nuts and bolts and shake` method may not work for large tanks
The "washers/chains/screws/nuts and bolts and shake" method is a technique used to seal fuel tanks. The process involves placing washers, chains, screws, nuts, and bolts inside the fuel tank and then shaking it vigorously to remove rust and debris. While this method can be effective for smaller tanks, such as those found in motorcycles, it may not be practical for larger tanks, like those in cars.
When dealing with a large fuel tank, the "washers/chains/screws/nuts and bolts and shake" method presents several challenges. Firstly, the weight and size of a large tank make it difficult for a person of average strength to manoeuvre and swirl the tank effectively. The method requires a significant amount of physical exertion and endurance to achieve the desired results.
Secondly, the debris generated during the process can be substantial. As the washers, chains, screws, nuts, and bolts collide with the interior of the tank, they can dislodge rust and other contaminants. In a large tank, the amount of debris produced can be considerable, making it challenging to remove all the loose particles thoroughly.
Additionally, the "washers/chains/screws/nuts and bolts and shake" method may not be as effective in reaching all areas of a large tank. The interior of large fuel tanks can have complex geometries, making it difficult for the washers, chains, and other objects to access all crevices and corners. As a result, the method may not evenly distribute the cleaning or sealing solution throughout the entire tank.
Furthermore, the "washers/chains/screws/nuts and bolts and shake" method may not address all types of damage or issues present in a large fuel tank. While it can help dislodge loose rust and debris, it may not effectively seal pinhole leaks or address more severe corrosion. In such cases, a more comprehensive approach, such as using a reputable fuel tank sealer kit or seeking professional services, may be necessary.
It is important to note that fuel tank repair and sealing require careful preparation and the selection of appropriate products. Ensuring that the tank is thoroughly cleaned and free from contaminants is crucial for the success of any sealing method or product. Consulting with experts or following manufacturer instructions can help ensure effective and safe results when dealing with large fuel tanks.
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Frequently asked questions
Yes, fuel tank sealers do work. They can save rusty, old gas tanks and prevent leaks, rust, and corrosion.
Some popular fuel tank sealers include POR-15 Fuel Tank Sealer, Gold Standard Fuel Tank Sealer, and KBS Coatings kit.
Fuel tank sealers are applied to the inside of the tank, coating and sealing any leaks, rust, or corrosion. The tank must be clean and free of contaminants before applying the sealer.
The process of sealing a fuel tank involves cleaning the tank, taping up any openings, mixing the sealer with water (if required), and pouring the sealer into the tank. The tank is then drained of any excess sealer and allowed to dry.











































