
The POR-15 Fuel Tank Repair Kit is a comprehensive solution for sealing and restoring automotive, agricultural, and industrial fuel tanks. It is designed to address issues such as rust, corrosion, and pinhole leaks, and can be used on various vehicles, including motorcycles, tractors, and storage tanks. The kit includes a range of products, such as a cleaning solution, metal prep, and a fuel tank sealer, which work together to create a strong, impervious barrier that protects fuel tanks from contaminants and extends their lifespan.
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What You'll Learn

How to use the POR-15 Fuel Tank Repair Kit
The POR-15 Fuel Tank Repair Kit is a 4-step kit that can be used to repair and seal automotive, agricultural, and industrial machinery fuel tanks. The kit includes a cleaning solution, a metal prep solution, a fuel tank sealer, a brush, and reinforcing fabric. Here is a step-by-step guide on how to use the POR-15 Fuel Tank Repair Kit:
Step 1: Clean the Fuel Tank
Before starting the repair process, ensure that the fuel tank is free from any old sealers or coatings. Remove any old sealers or coatings using a coating stripping agent or sandblasting. Clean the fuel tank thoroughly to remove any gum, varnish, sludge, or fuel. This can be done using the POR-15 Cleaner Degreaser included in the kit. Mix one quart of the cleaner with one quart of hot water and use this solution to clean the inside of the tank.
Step 2: Prepare the Metal Surface
Once the tank is clean, use the POR-15 Metal Prep solution to dissolve any remaining rust and prepare the metal surface for the sealer. Pour the entire bottle of Metal Prep into the tank, coating the metal and etching it for better adhesion of the sealer.
Step 3: Rinse and Dry the Tank
After applying the Metal Prep, drain and rinse the tank thoroughly with water. Ensure that all residues are removed. Then, let the tank dry completely. You can use a hairdryer to speed up the drying process.
Step 4: Apply the Fuel Tank Sealer
Once the tank is dry, pour in the entire can of POR-15 Fuel Tank Sealer. Turn and rotate the tank to ensure that all surfaces are coated evenly. Let the sealer dry and cure for at least an hour.
Step 5: Drain Excess Sealer and Maintain Fuel System
After the sealer has been applied and dried, drain the tank again to remove any excess sealer. Use fuel preservation and stabilizer to maintain your fuel system and avoid "stale gas" problems.
It is important to note that the POR-15 Fuel Tank Sealer will not work on plastic parts or contaminated tanks. Always wear protective gear, including gloves, eye protection, and respiratory protection, when working with the kit.
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The importance of removing contaminants before sealing
The POR-15 Fuel Tank Sealer is a high-tech sealer designed for metal fuel tanks. It creates a strong, impervious barrier against rust, corrosion, and ethanol fuels. The sealer is also resistant to all fuels, including diesel, E10 ethanol, and high-alcohol content fuels.
To ensure the effectiveness of the POR-15 Fuel Tank Sealer, it is crucial to prepare the fuel tank properly before applying the sealer. This includes removing any contaminants, such as gum, varnish, sludge, or fuel, from the tank. Contaminants can cause various issues, including reduced engine performance, blockages, and restricted fuel flow. They can also lead to more frequent fuel filter replacements and potential engine failure. Therefore, it is essential to clean and neutralize the tank using the products provided in the POR-15 Fuel Tank Repair Kit to ensure optimal adhesion of the sealer.
The first step is to clean the tank thoroughly using the POR-15 Cleaner Degreaser to remove dirt, grease, and old sealers. This step ensures that the tank is free from loose rust and contaminants. After cleaning, the tank should be rinsed and dried thoroughly.
The next step is to prepare the metal surface for better adhesion of the sealer. This is done by using the POR-15 Metal Prep to dissolve rust, coat the tank with zinc phosphate, and etch the metal. This process helps to create a strong bond between the sealer and the tank. Once the metal prep is complete, the tank should be drained and rinsed again to remove any residue.
After the cleaning and preparation steps, the tank is ready for the POR-15 Fuel Tank Sealer to be applied. It is important to follow the directions provided with the sealer to ensure proper application. Once the sealer has been applied, the tank should be drained to remove any excess.
In conclusion, the importance of removing contaminants and properly preparing the fuel tank before sealing cannot be overstated. By taking the time to clean and prepare the tank, you can ensure the effectiveness of the POR-15 Fuel Tank Sealer and protect your fuel system from corrosion, leaks, and other issues.
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The kit's ability to stop rust and corrosion
The POR-15 Fuel Tank Repair Kit is an effective solution for stopping rust and corrosion in fuel tanks. It is designed for use on a range of vehicles, including cars, trucks, motorcycles, tractors, and motorcycles, as well as agricultural and industrial machinery. The kit includes a comprehensive set of products that work together to prevent and address rust and corrosion issues.
After cleaning, the kit's Metal Prep solution is used to dissolve any remaining rust and etch the metal surface. This etching process, often facilitated by zinc phosphate, enhances the adhesion of the sealer to the tank. The etching step is particularly important for rust prevention, as it prepares the metal surface to bond with the protective coating.
Once the tank is clean and prepared, the POR-15 Fuel Tank Sealer is applied. This sealer is specifically formulated to create an impervious barrier against rust and corrosion. It is designed to be resistant to various fuel types, including diesel, E10 ethanol, and high-alcohol content fuels. The sealer forms a strong, flexible, and non-porous coating, preventing rust and corrosion from occurring or spreading.
The application process for the sealer is straightforward but requires careful adherence to instructions. Users should follow the recommended mixing and application guidelines provided by POR-15. The sealer sets up quickly, forming a rock-hard coating, so proper planning and prompt cleanup are essential. It is also crucial to ensure the tank is thoroughly dried before applying the sealer, and some users recommend using a hair dryer for this purpose.
Overall, the POR-15 Fuel Tank Repair Kit's ability to stop rust and corrosion is attributed to its comprehensive approach. The combination of effective cleaning, preparation, and sealing products, along with clear instructions, enables users to create a protective barrier that guards against rust and corrosion in fuel tanks.
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The kit's ability to seal pinhole leaks
The POR-15 Fuel Tank Repair Kit is a comprehensive solution for sealing and restoring motorcycle fuel tanks. The kit includes a cleaner degreaser, a metal prep solution, and a fuel tank sealer, providing a simple three-step process that takes about six hours to complete.
The POR-15 Fuel Tank Sealer is formulated for metal surfaces and is designed to be impervious to various fuels, including diesel, E10 ethanol, and high-alcohol content fuels. It is essential to follow the instructions provided with the kit to achieve optimal results. The sealer should be applied after thoroughly cleaning and preparing the tank with the included cleaner degreaser and metal prep solution.
While some customers have expressed satisfaction with the kit's ability to seal pinhole leaks, others have reported challenges. In some cases, the sealant may not adhere adequately to the tank, potentially due to improper surface preparation or other factors. It is recommended to carefully review and follow the instructions provided by the manufacturer to increase the likelihood of successful sealing.
It is worth noting that the manufacturer, POR-15, has not specifically tested the product for sealing pressurized fuel tanks, such as Coleman lanterns and stoves, which typically operate at pressures ranging from 20 PSI to 40 PSI. While some customers have used the product for such applications, assuming the risk, others have opted for alternative sealants designed for pressurized fuel tanks.
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The kit's suitability for various vehicles
The POR-15 Fuel Tank Repair Kit is suitable for a wide range of vehicles, including cars, trucks, motorcycles, agricultural and industrial machinery, and vintage or antique vehicles. The kit can be used to repair and seal fuel tanks made of metal, and it is essential that the tank is free from plastic parts and contamination before applying the sealer.
The kit is designed to stop rust, corrosion, and small fuel leaks, making it suitable for older vehicles or those with fuel tank issues. It is also effective in sealing pinhole leaks, which can occur in tanks of various ages and sizes. The kit includes cleaning and neutralizing etching products to improve sealer adhesion, especially in old tanks.
The POR-15 Motorcycle Fuel Tank Repair Kit is specifically designed for motorcycles and other small metal fuel tanks, such as recreational vehicles, snowmobiles, outboards, and generators. This kit includes all the necessary products to repair and seal a motorcycle tank, including reinforcing fabric for patching holes or reinforcing weak areas.
The versatility of the POR-15 Fuel Tank Repair Kit makes it a popular choice for those looking to restore or maintain a range of vehicles. It is important to follow the directions carefully and ensure the fuel tank is properly cleaned and prepared before applying the sealer for optimal results.
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Frequently asked questions
The POR-15 Fuel Tank Liner is used to seal and protect your fuel tank from rust, corrosion, and leaks. It creates an impervious barrier against all types of fuels, including diesel, ethanol, and high alcohol content fuels.
The POR-15 Fuel Tank Liner can be used on automotive, agricultural, farm, and industrial machinery fuel tanks, as well as motorcycle and small metal fuel tanks for recreational vehicles, snowmobiles, and generators.
The application process involves several steps: first, clean and prepare the tank by removing any contaminants, then apply the liner according to the instructions, and finally, use fuel preservation and stabilizer to maintain your fuel system.
The POR-15 Fuel Tank Liner is available for purchase on Amazon and the POR-15 website. You can also find it at other online retailers and automotive stores.
It is important to follow the directions carefully and wear gloves during the application process. The liner sets up quickly and hardens, so be cautious to avoid spills and ensure proper ventilation as it is not recommended to get it on your skin.











































