What is the Cycle Tank Sealer Kit?
The KBS Cycle Tank Sealer Kit is a complete 3-step system that cleans, preps, and permanently seals fuel tanks up to 5 gallons, including motorcycle, generator, lawn mower, tractor, snowmobile, and utility tanks. The kit pairs KBS Klean and RustBlast prep products with Gold Standard Tank Sealer, a fuel-impervious coating that stops rust and permanently seals pinholes and weld seams on steel, aluminum, and fiberglass tanks.
3-Step
Klean → RustBlast → Seal
Gold Standard Tank Sealer is a single-component, ready-to-use moisture-cured urethane that forms a silver metallic, fuel-impervious coating inside the tank. The coating flexes with the tank as it expands and contracts, resists all fuels, alcohol additives, and most solvents, and contains no Methyl Ethyl Ketone (MEK).
Each Cycle Tank Sealer Kit includes a quart of KBS Klean, a quart of RustBlast, an 8oz can of Gold Standard Tank Sealer, nitrile gloves, a stir stick, and detailed step-by-step instructions. Working on a tank with a previous liner already inside it? The Cycle Tank Sealer PLUS Kit adds a quart of KBS Strip to remove the old failing sealer before recoating.
Gold Standard Tank Sealer permanently seals pinholes and weld seams on steel, aluminum, and fiberglass tanks. Satisfaction guaranteed!
Sealing a Motorcycle Gas Tank with the KBS Cycle Tank Sealer Kit
The Cycle Tank Sealer Kit includes every product needed to clean, prep, and seal a tank up to 5 gallons in one purchase: KBS Klean, RustBlast, Gold Standard Tank Sealer, nitrile gloves, a stir stick, and detailed instructions. No separate cleaner, etch, or sealer purchase is required to complete the job.
- KBS Klean (Quart) — Water-based, heavy-duty cleaner and degreaser that removes grease, oil, and contaminants from inside the tank without leaving residue.
- RustBlast (Quart) — Powerful rust remover and metal etch that eliminates rust while depositing a zinc phosphate film, extending rust-free protection and priming the surface for sealing.
- Gold Standard Tank Sealer (8oz) — Single-component, fuel-impervious coating that permanently seals pinholes, weld seams, and rust damage on steel, aluminum, and fiberglass tanks.
- Nitrile Gloves — Chemical-resistant gloves sized for tank prep and sealing work.
- Stir Stick — For thoroughly mixing Gold Standard Tank Sealer before pouring.
- Detailed Step-by-Step Instructions — Written directions for all 3 steps, covering temperature range, dwell times, and drying requirements.
The Cycle Tank Sealer Kit eliminates rust and corrosion permanently rather than masking it, and Gold Standard Tank Sealer withstands operating temperatures up to 600°F while resisting all fuels, alcohol additives, and most solvents. The coating flexes with the tank through expansion and contraction, so it does not crack loose the way a rigid liner can.
- Silver Metallic Permanent Coating: Forms a durable, fuel-impervious layer that eliminates rust and corrosion inside the tank.
- 600°F Maximum Operating Temperature: The cured coating holds up to 600 degrees F (316 degrees C) without breaking down.
- Permanently Seals Pinholes & Weld Seams: Bridges small holes and leaky weld seams as it cures.
- Flexible Formula: Expands and contracts with the tank instead of cracking under thermal stress.
- Fuel & Alcohol Resistant: Impervious to all fuels, alcohol additives, and most solvents, including modern ethanol blends.
- Non-Flammable: Safer to store and handle than solvent-heavy tank liner alternatives.
- Environmentally Safe: Contains no Methyl Ethyl Ketone (MEK).
- Single Thin Coat Application: One properly drained coat is the complete sealing step, no multiple recoats required.
- Complete 3-Step System: KBS Klean, RustBlast, and Gold Standard Tank Sealer are formulated to work together for proper adhesion.
The Cycle Tank Sealer Kit works on steel, aluminum, and fiberglass tanks up to 5 gallons, including motorcycle, generator, lawn mower, tractor, snowmobile, and utility tanks. Gold Standard Tank Sealer bonds to bare metal, existing rust, and fiberglass resin alike, so the tank material does not limit which tanks can be sealed.
- Powersports & Small Engine
- Motorcycle tanks, generator tanks, lawn mower tanks, snowmobile tanks, and other small engine fuel tanks up to 5 gallons.
- Agricultural & Utility
- Tractor fuel tanks and general utility tanks used in outdoor power equipment.
- Fuel Types
- Diesel and oil tanks in addition to standard gasoline tanks, including tanks exposed to ethanol-blended fuels.
- Materials
- Steel, aluminum, fiberglass, and non-potable water tanks (fiberglass tanks follow a modified RustBlast dwell time; see the FAQ below).
Can the Cycle Tank Sealer Kit Be Used on a Fiberglass Motorcycle Tank?
Yes. The process is nearly identical to a metal tank, with one change: RustBlast contacts a fiberglass surface for only 2 minutes in Step 2 instead of the standard 30 to 60 minutes, since the goal is an acidic etch rather than rust removal. Fiberglass holds moisture, so the tank must be completely dry with forced air before the Gold Standard Tank Sealer goes in.
One Cycle Tank Sealer Kit is sized for a single tank up to 5 gallons, applied as one thin, well-drained coat covering the full interior surface. Larger tanks up to 12 gallons should use the Large Cycle Tank Sealer Kit instead of doubling up on this kit.
Cure timing: Gold Standard Tank Sealer needs 96 hours to fully cure before fuel goes back in the tank, and should be applied within 10 days of finishing the KBS Klean and RustBlast prep steps.
Pro Tip: Rotate the tank every 5 minutes while draining excess Sealer to prevent pooling. Puddled sealer traps gas underneath and can cause bubbling or a failed cure.
The Cycle Tank Sealer Kit differs from buying a bulk tank sealer alone in that it bundles the required cleaning and etching steps into one purchase: Gold Standard Tank Sealer needs proper prep to bond correctly, and a sealer-only purchase leaves the buyer sourcing a separate degreaser and metal etch before they can start.
| | Cycle Tank Sealer Kit | Sealer Purchased Alone |
|---|
| Includes degreaser | Yes, KBS Klean quart included | No, purchased separately |
| Includes metal etch/rust remover | Yes, RustBlast quart included | No, purchased separately |
| Includes gloves and stir stick | Yes | Varies by seller |
| Tank capacity covered | Up to 5 gallons | Depends on can size purchased |
| Written step-by-step directions | Included in kit | Often sold without directions |
Buying Gold Standard Tank Sealer alone can cost less up front if a shop already stocks a compatible degreaser and metal etch on hand, since only the sealer itself needs to be purchased.
Once Gold Standard Tank Sealer cures for 96 hours, test the tank with water before refilling with fuel. If the outside of the tank also needs rust protection or a fresh finish, KBS RustSeal and BlackTop cover exterior surfaces as part of the same 3-Step System.
- Step 1 — KBS Klean
- Cleans and degreases the tank interior.
- Step 2 — RustBlast
- Removes rust and etches the surface for adhesion.
- Step 3 — Gold Standard Tank Sealer
- Permanently seals the interior against rust and fuel.
Shop the Full Tank Sealer System
Patience When Using Tank Sealer
Why slowing down between steps is the single most important factor in getting a permanent seal.
Read Article →
KBS Tank Sealer System: Restore Your Tank to Like New
How the KBS 3-step system removes rust and permanently restores the inside of a fuel tank.
Read Article →
Simple Steps to Seal a Gas Tank
A step-by-step video walkthrough of sealing a gas tank using the KBS Tank Sealer System.
Watch Video →
Tank Sealer Application Directions (TDS)
Full technical data sheet and step-by-step directions for the KBS 3-Step Tank Sealer System.
Read Directions →
Large Cycle Tank Sealer Kit
Sealing a tank between 5 and 12 gallons? See the larger version of this same 3-step kit.
Shop Large Kit →
KBS Coatings Customer Photos
See real before-and-after tank sealing results submitted by KBS customers.
See Gallery →
Have questions before you buy? Find answers to the most common Cycle Tank Sealer Kit questions below, or
order the Cycle Tank Sealer Kit now and get it shipped same day.
The Cycle Tank Sealer Kit is a complete 3-step system, KBS Klean, RustBlast, and Gold Standard Tank Sealer, that cleans, preps, and permanently seals fuel tanks up to 5 gallons. Unlike a sealer-only purchase, the kit includes the degreaser and metal etch needed for proper adhesion, plus gloves, a stir stick, and written directions.
The kit works on steel, aluminum, and fiberglass tanks up to 5 gallons, including motorcycle, generator, lawn mower, tractor, snowmobile, and utility tanks. It also works on diesel and oil tanks, plus non-potable water tanks.
Not with this kit alone. An old, failing liner must be fully removed before the 3-Step System is applied, since Gold Standard Tank Sealer needs to bond to bare, prepped metal or fiberglass. The Cycle Tank Sealer PLUS Kit adds a quart of KBS Strip specifically for this situation.
Gold Standard Tank Sealer needs 96 hours to fully cure at room temperature in a well-ventilated area, out of direct sun or heat. Always test the tank with water before refilling with fuel.
Apply Gold Standard Tank Sealer between 55 degrees F and 82 degrees F in moderate to dry conditions. It is a moisture-cured urethane, so curing it too fast in rainy or humid conditions causes surface bubbling from gas entrapment.
Drain the tank, remove fittings, and seal any openings. Mix KBS Klean 1:1 with hot water and soak/rotate the tank to clean it, then rinse. Pour in full-strength RustBlast and roll the tank for 30 to 60 minutes to etch and de-rust it, then rinse and dry completely. Stir and pour in Gold Standard Tank Sealer, rotate to coat every surface, then drain excess and rotate every 5 minutes until it stops dripping.
Yes, with one adjustment: apply RustBlast to fiberglass for only 2 minutes in Step 2 instead of 30 to 60 minutes, since the goal is an acidic etch rather than rust removal. Fiberglass holds moisture, so dry the tank completely with forced air before sealing, and coat the entire interior since any missed spot is vulnerable to alcohol-blended fuels.
Use KBS #1 Thinner for immediate cleanup of Gold Standard Tank Sealer before it dries, since it cannot be removed by any solvent once cured. KBS Klean and RustBlast rinse away with water. Always wear the included nitrile gloves to avoid skin contact and temporary staining.
Gold Standard Tank Sealer is formulated for a single thin coat. Thoroughly coat the entire interior, paying close attention to weld seams and pinholes, then drain and rotate the tank every 5 minutes so excess sealer does not pool and cause bubbling.
Let the tank cure for 96 hours in a well-ventilated area away from direct sun or heat, then test with water before adding fuel. If the exterior of the tank also needs rust protection, KBS RustSeal and BlackTop can finish the outside as part of the same system.
