KBS Coatings Fuel Tank Sealer Kit for Motorcycles & ATVs — Large 12‑Gallon Kit with Cleaner & Rust Remover

This kit brings together a cleaner, a rust remover/etch, and the company's Gold Standard Tank Sealer so you can prepare and seal a motorcycle, ATV, marine, or small vehicle fuel tank without sourcing separate products. The single-component sealer cures to a flexible, fuel-resistant lining that fills tiny pinholes and protects weld seams while the included prep chemicals remove grease and dissolved rust for long-lasting adhesion.

How do I prepare a tank for the KBS sealer?

Proper surface preparation is essential for the sealer to bond and perform. The kit includes KBS Klean to degrease and KBS RustBlast to dissolve scale and etch metal, making the interior ready for coating. Follow the directions for agitation and rinsing, and let the tank fully dry before applying the sealer to avoid trapping moisture.

• Use KBS Klean to remove oil, varnish, and fuel residues.
• Apply RustBlast to remove rust and create a clean metal profile.
• Rinse thoroughly and allow full drying; ensure ventilation during prep.

What protection does the Tank Sealer provide against fuel and corrosion?

The Gold Standard Fuel Tank Sealer cures into a tough, fuel-impervious membrane that resists gasoline, ethanol blends, and many solvents. It seals small pinholes and weld seams to stop leaks and prevents new rust from forming on coated surfaces. Its flexibility accommodates thermal expansion and vibration without cracking.

• Impervious to fuels including alcohol additives and many solvents.
• Seals minor leaks, pinholes, and weld seams for a leak-resistant lining.
• Flexible film moves with tank metal to reduce stress cracking.

How much area will this kit cover and what’s included?

This Large Cycle Tank Sealer Kit is formulated to coat the interior of tanks up to 12 gallons in capacity. The package contains KBS Klean (water-based cleaner/degreaser), KBS RustBlast (rust remover and metal etch), the single-component RustSeal Gold Standard Fuel Tank Sealer, disposable gloves, and complete application directions. The materials and instructions are designed to give a complete, single-source solution for a single tank project.

• Covers the interior of tanks up to 12 gallons.
• Includes cleaner, rust remover/etch, sealer, gloves, and full instructions.
• Single-component sealer requires no mixing or catalysts.

How long does the sealer last and what maintenance is needed?

When applied correctly over a properly prepared surface, the sealer provides long-term protection by preventing rust recurrence and fuel migration through small defects. Routine fuel filter changes and visual inspections of the tank exterior are sensible maintenance; the interior lining itself requires no regular re-treatment unless the surface is mechanically damaged. Avoid introducing contaminants or excessive water into the tank to extend lining life.

• Long-lasting protection when applied to clean, rust-free metal.
• No regular reapplication needed unless lining is damaged.
• Maintain fuel system hygiene with filter changes and inspections.

Who is this for: The KBS Large Cycle Tank Sealer Kit is aimed at motorcycle and powersports owners, classic car restorers, small boat enthusiasts, and DIY mechanics who want a single-source solution to remove rust, prep metal, and apply a fuel-safe interior lining. It suits anyone sealing tanks up to 12 gallons who prefers a kit with matched prep chemicals and clear instructions rather than buying components separately.