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KBS Coatings 53000: Auto Fuel Tank Sealer Kit – KBS Auto Fuel tank sealer kits extend the life of your fuel tank while preventing leaks. Everything you need to clean prep and permanently seal up to a 25 gallon tank comes in one convenient 3-step system. Use the heavy-duty water-based KBS AquaKlean to thoroughly clean and degrease your tank. Then use the KBS RustBlast to remove rust and etch the interior metal to provide a proper surface for adhesion. The final step is the KBS Gold Standard tank sealer. This sealer is a ready-to-use coating that cures into a tough fuel-impervious seal that prevents rust and corrosion and permanently seals weld seams and pinholes. Although KBS Gold Standard tank sealer cures to a rock-hard finish it remains flexible enough to withstand vibration expansion and contraction. It penetrates and galvanizes itself to the tank walls forming a moisture-proof barrier. KBS Auto Fuel tank sealer kits are environmentally safe. Follow the instructions carefully for a rust-free permanently sealed fuel tank!