KBS Fuel Tank Seal and Restore Kit from 3SX

As these cars get older a big issue is contaminated fuel due to rust in gas tanks. These kits can coat and seal the inside of your tank to get rid of rust permanently and also fill small leaks.
SKU: KBS05xxx

Complete Assembly


3SX / KBS Auto & Cycle Fuel Tank Sealer Systems

Got a Rusty Fuel Tank? Fix it now!!

KBS Tank Sealer

The KBS Fuel Tank Sealer Kit from 3SX contains everything you need to seal a tank of up to 25 gallons.

Gold Standard Fuel Tank Sealer is a superior, single-component, ready-to-use fuel tank sealer.

Gold Standard Fuel Tank Sealer is specifically formulated to stop rust and corrosion by forming a tough, fuel impervious coating while simultaneously sealing small pinholes and weld seams.

This kit contains our KBS Klean (a water-based, heavy-duty, cleaner/degreaser) and RustBlast (a powerful rust remover/metal etch) to obtain a permanently sealed, rust-free fuel tank. These KBS prep products are formulated to extend storage times by leaving a zinc phosphate film.


  • KBS Klean - 2 Quarts (1/2 Gallon)
  • RustBlast - Quart
  • Tank Sealer - Quart
  • Black Nitrile Gloves
  • Stir Stick
  • Detailed Instructions


KBS Tank Sealer
  • Silver metallic permanent coating
  • Eliminates all rust and corrosion
  • Impervious to all fuels, alcohol additives and most solvents
  • Permanently seals pinholes and weld seams
  • Flexible to expand and contract
  • Non-flammable
  • Environmentally safe
  • Contains no Methyl Ethyl Ketone (MEK)


steel, aluminum & fiberglass fuel tanks • oil tanks • utility tanks • non-potable water tanks • diesel tanks