Ameer Randolph
There are various products available to seal a steel fuel tank. Some popular options include the POR-15 Fuel Tank Sealer, Red Kote Tank Sealer, and KBS Tank Sealer. The type of sealer you use will depend on the condition of your tank and the type of fuel it will hold. For example, the POR-15 Fuel Tank Sealer is formulated for metal and is impervious to all fuels, including diesel, E10 ethanol, and high-alcohol content fuels. It is important to prepare your tank properly before applying any sealer, which may include cleaning, degreasing, and treating with an acid solution to remove rust and corrosion.
| Characteristics | Values |
|---|---|
| Sealing product | KBS Tank Sealer, POR-15 Fuel Tank Sealer, Red Kote Tank Sealer, Eastwood Gas Tank Sealer, Caswells Dragon Blood Kit, Epoxy, Epoxy Fiberglass Resin |
| Use cases | Steel, aluminium, and fibreglass tanks; fuel tanks, diesel tanks, biodiesel tanks, oil tanks, utility tanks, non-potable water tanks, tractor tanks, motorcycle tanks, storage tanks |
| Preparation | Remove old sealers, clean with degreaser, ensure tank is free of rust, loose rust, and clogs |
| Application | Pour into the tank, rotate tank slowly in all directions, let stand, drain off excess |
| Curing | Leave for 48 hours at 60°F or warmer, cured coating should be slightly rubbery with no odour |
| Notes | Ensure good ventilation, wear protective gloves, work outdoors |
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$23.81 $27.42
$37.26 $49.36
What You'll Learn
Epoxy fibreglass resin
When it comes to sealing a steel fuel tank, there are various methods and products available, and one of the most effective and popular methods is using epoxy fibreglass resin. This method has been proven to work well and is often recommended by experts.
Once the tank is clean and dry, the epoxy fibreglass resin can be mixed according to the manufacturer's instructions. It is important to use the correct ratio of resin to hardener, as this will ensure that the resin cures properly and forms a strong seal. After mixing, the resin can be poured into the tank, and the tank should be rolled slowly in all directions to ensure that the resin coats the entire inner surface evenly.
It is important to work quickly as epoxy fibreglass resin can begin to set within a few minutes. Once the resin has been applied, the tank should be left to cure completely, which can take several hours or even days, depending on the product and environmental conditions. During the curing process, it is crucial to ensure that the area is well-ventilated and that no sparks or flames are present, as epoxy resins can give off vapours that may be flammable.
One of the advantages of using epoxy fibreglass resin is its ability to seal small pinholes and weld seams, preventing fuel from leaking out and ensuring that it does not come into contact with the inside walls of the tank. This makes it a popular choice for repairing and restoring old or damaged fuel tanks. Additionally, epoxy fibreglass resin is known for its resistance to gasoline and other petroleum products, making it a safe and reliable option for sealing steel fuel tanks.
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KBS coatings
The KBS Tank Sealer System contains KBS Klean, RustBlast, and the KBS Tank Sealer to prep and permanently seal your tank. RustBlast is a powerful rust remover that dissolves rust, corrosion, metal oxides, and tarnish from most metal surfaces. It also acts as a zinc phosphate pre-primer, leaving a film that extends storage times. KBS Klean is a water-based, heavy-duty cleaner and degreaser.
The KBS Auto Fuel Tank Sealer Kit contains everything needed to clean, prep, and permanently seal a tank of up to 25 gallons. This includes the KBS Klean cleaner/degreaser and RustBlast rust remover. The kit provides detailed instructions for professional and long-lasting results.
KBS also offers a Large Cycle Tank Sealer PLUS Kit, which includes all the components of the standard Large Cycle Tank Sealer Kit, plus a quart of KBS Strip to remove any old failing sealers. This kit is suitable for motorcycles, generators, lawnmowers, tractors, snowmobiles, utility tanks, and other small tanks of up to 5 gallons.
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Acid treatment
For example, one user recommends using phosphoric acid, which can be found on eBay or Amazon. They suggest trying a 10% solution, batching it with hot tap water, and keeping the tank warm throughout the process. The acid is left on the metal for 60 minutes before being thoroughly drained and rinsed.
Another user describes their process of using muriatic acid to clean their fuel tank. They warn that muriatic acid is a potent substance, being about 33% hydrochloric acid, and recommend wearing gloves and ensuring proper ventilation during its use. They dilute the acid and put it in the tank with a handful of nuts and bolts, shaking the tank occasionally over a 24-hour period. The user then dries the tank by placing it in a wood-fire stove, being careful not to make it too hot.
While acid treatment can be effective at removing rust, it is important to note that it can also be hazardous and may cause subsequent rusting issues. Muriatic acid, in particular, is very potent and can be difficult to neutralize and control. It can also cause environmental damage and requires careful handling to avoid damage to eyes, hands, clothing, and other surfaces.
After using an acid treatment, it is crucial to thoroughly rinse the tank to remove any remaining acid and chlorides, which can lead to corrosion. A rust inhibitor should also be applied to prevent oxidation.
Once the tank is clean and dry, a tank sealer can be applied to seal the surface and protect against future rust. This process typically involves pouring the sealer into the tank and rotating the tank slowly to ensure an even coating. It is important to follow the manufacturer's instructions and take the necessary safety precautions when working with acids and sealers.
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POR-15 fuel tank sealer
Before applying the sealer, the fuel tank must be free from plastic parts, contamination, and be structurally sound. The tank should also be free from loose rust and old sealers. It is recommended to clean the tank with POR-15 Cleaner Degreaser and etch with POR-15 Metal Prep for better adhesion of the sealer.
The application process involves first pouring the entire bottle of POR-15 Metal Prep to dissolve rust, coating the tank with zinc phosphate, and etching the metal. After the tank is clean, it should be drained, rinsed with water, and allowed to dry completely. Once dry, the entire can of Fuel Tank Sealer is poured in, coating all surfaces. The tank is then drained for about an hour to remove excess sealer.
Reviews of the product are mixed. Some users have reported good results, describing it as "super effective and easy to use", while others have shared horror stories of the sealer coming off in large chunks and causing problems. It is also worth noting that removing the POR-15 sealer is challenging, as it is resistant to most solvents.
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Eastwood gas tank sealer
There are several products available to seal a steel fuel tank, including KBS Coatings, POR-15, Red Kote, and Eastwood Gas Tank Sealer.
The Eastwood Gas Tank Sealer process begins by removing valves, sending units, petcocks, and internal filters, and stopping all openings except for the fill spout. The tank is then washed with hot, soapy water and rinsed thoroughly with water from a running garden hose. Next, the Metal Wash solution is mixed with two gallons of hot water in a clean bucket and poured into the tank, ensuring that all fuel varnish is removed.
After the tank is clean and dry, the sealer container should be shaken well, and the fill neck should be temporarily closed. The Eastwood Gas Tank Sealer is then poured into the tank, and the tank is slowly rotated in all directions to coat the entire inner surface. A properly coated tank will have a uniform bright white coating free of any puddles, with some excess remaining. The tank is then allowed to stand for 8-10 minutes with the fill neck open and then closed before being slowly rotated again to allow the excess to recoat all surfaces. This process is repeated until the desired opaque white coating is achieved, ensuring that the coating does not drain to one area and dry. Finally, the excess is drained off and allowed to dry before being disposed of according to local laws.
It is important to note that forced ventilation is crucial during the sealing process to prevent the sealer from reflowing and puddling and to ensure thorough drying. Additionally, the tank should be completely dry within 48 hours at 60°F or warmer, and the cured coating should be slightly rubbery and odourless before filling the tank with gas.
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Frequently asked questions
Some products that can be used to seal a steel fuel tank include: KBS Tank Sealer, POR-15 Fuel Tank Sealer, Red Kote Tank Sealer, and Eastwood Gas Tank Sealer.
The best product to seal a steel fuel tank depends on various factors, such as the size of the tank, the presence of plastic components, and the type of fuel. However, based on user reviews, POR-15 Fuel Tank Sealer and Eastwood Gas Tank Sealer are two popular and effective options.
The process for sealing a steel fuel tank typically involves cleaning and preparing the tank, removing any old sealers, rust, or corrosion, and then applying the chosen sealer according to the manufacturer's instructions. It is important to ensure proper ventilation and follow safety precautions when working with chemicals.
