What is the Frame Coater Kit?
The Frame Coater Kit is KBS Coatings' complete 3-step rust prevention system that degreases, etches, and permanently seals a full-size car or truck frame, or any 50 square foot metal surface, against rust. The kit includes KBS Klean, RustBlast, and RustSeal, a moisture-cured coating that chemically bonds to bare or lightly rusted metal and cures to a 600°F heat-resistant film without cracking, chipping, or peeling.
50 sq. ft.
Coverage per Kit
11 Colors
Available Finishes
RustSeal is moisture-cured, so it is made stronger, not weaker, by continued exposure to humidity, the condition that causes most other coatings to fail. It is also resistant to acids, alkalis, salts, solvents, oils, fertilizers, and refined petroleum products, which makes the Frame Coater Kit suitable for automotive, marine, industrial, and household metal.
The kit includes a quart each of KBS Klean, RustBlast, and RustSeal, plus nitrile gloves, brushes, a stir stick, and a detailed step-by-step guide, enough to clean, prep, and apply two full coats across a full-size frame.
RustSeal is applied directly over tightly rusted or sandblasted metal, so full rust removal is never required. Satisfaction guaranteed!
Sam Memmolo Shows How to Use RustSeal and Cavity Coater
The Frame Coater Kit's RustBlast step etches and neutralizes rust and mill scale down to a sound surface profile, and RustSeal then permanently seals whatever tight rust remains underneath. Loose, flaking rust should be removed with 320 grit sandpaper or a wire wheel first, but the kit does not require the surface to be stripped to bare, shiny metal before coating.
- Loose or flaking rust — removed by sanding, wire brushing, or wire wheeling before Step 1.
- Mill scale and light surface rust — etched away by RustBlast in Step 2.
- Grease, oil, and fingerprints — stripped by KBS Klean in Step 1; even new metal carries protective oils that block adhesion.
- Tightly bonded or sandblasted rust — not removed, permanently sealed underneath RustSeal instead.
- Old chemically strippable paint — must be removed by chemical stripping; if it cannot be fully removed, scuff with 400 grit before Step 1.
- Zinc phosphate residue — a light white powder left after RustBlast; this is expected and improves RustSeal adhesion, not a defect.
The Frame Coater Kit differs from a standard rust primer kit because RustSeal is a finished, non-porous coating rather than a base layer that still needs a topcoat. RustSeal bonds directly to bare or lightly rusted metal, cures to a 7H-hard film rated to 600°F, and will not crack, chip, or peel under expansion.
- Surface Tolerant: Applies directly over treated rust and bare metal without full media blasting.
- 1K Formula: Ready-to-use single component with no hardener to mix.
- Moisture Cured: Strengthens with exposure to humidity instead of degrading.
- Deep Penetration: Bonds to bare metal, galvanized steel, and other substrates.
- Non-Porous: Forms a permanent barrier against moisture and oxygen once cured.
- Chemical Resistant: Repels fuels, oils, acids, and alkalis.
- High Heat: Withstands continuous temperatures up to 600°F (315°C).
- Flexible: Will not crack, flake, or peel under expansion and contraction.
- Long Shelf Life: 2+ years unopened; 6 months once opened, stored cool and dry.
The Frame Coater Kit is built for full-size car and truck frames, but RustSeal's chemical resistance and moisture-cure make it suitable across automotive, marine, industrial, and household metal surfaces. Any bare or lightly rusted steel, galvanized metal, or fiberglass surface up to 50 square feet is a fit for one kit.
- Automotive
- Frames, chassis, floor pans, wheel wells, fenders, trunks, firewalls, engines, suspension parts, axles, roof drains, leaf springs, coil springs, and doors — almost every part on a car except the exhaust.
- Marine
- Engine rooms, hulls, masts, bilges, heat exchangers, decks, chain lockers, pumps, fuel tanks, and boat trailers.
- Industrial
- Heavy transport equipment, steam pipes, concrete sealing, air conditioning repair, fiberglass repair, re-bar coating, steel roofing, and fuel or waste-water treatment tanks.
- Household
- Steam radiators, hand rails, support beams, lawn equipment, garage floors, pipes, appliances, and lead-based paint encapsulation.
One Frame Coater Kit covers a full-size car or truck frame, or roughly 50 square feet, with two coats of RustSeal at 2 mils each. Expect up to 50% less coverage on bare wood, rough, or sandblasted surfaces, since porous surfaces absorb more material per coat.
| Coverage Basis | Typical Result |
|---|
| Standard 2-Coat Application | 50 sq. ft. (one full-size frame) |
| Porous / Sandblasted Surfaces | Up to 50% less coverage |
Recoat window: Apply the second coat 2 to 6 hours after the first, once it is dry to the touch and leaves no fingerprint.
The Frame Coater Kit differs from buying KBS Klean, RustBlast, and RustSeal separately in that the kit bundles the correctly sized quart of each product plus application tools and instructions in one order, while buying separately risks mismatched quantities and leaves out the gloves, brushes, and stir stick.
| | Frame Coater Kit | Buying Separately |
|---|
| Correctly sized quantities | Yes, one quart each, sized for 50 sq. ft. | Customer must calculate and match sizes |
| Application tools included | Yes, gloves, brushes, stir stick | No, purchased separately |
| Step-by-step guide included | Yes | Varies by product page |
| Color choice | 11 RustSeal colors at checkout | Same 11 colors, selected on the RustSeal page |
| Price | $72.00 for the full 3-step system | Sum of three individual quarts, typically higher |
Buying separately makes sense only when a shop already has KBS Klean or RustBlast on hand and needs just the missing step, since the kit's value is in bundling all three at once.
RustSeal is not intended as a final UV finish on surfaces exposed to direct sunlight. In areas out of direct UV, like the underside of a frame, RustSeal serves as both the seal and the finish.
- Step 1 — RustSeal (included)
- Seals rust and forms the base protective coating.
- Step 2 — Topcoat (optional, for UV-exposed areas)
- BlackTop, KBS Top Coater, or KBS MAXX protect RustSeal's color and sheen from UV fading.
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Have questions before you buy? Find answers to the most common Frame Coater Kit questions below — or
order the Frame Coater Kit now and get it shipped same day.
The Frame Coater Kit is KBS Coatings' complete 3-step rust prevention system: KBS Klean to degrease, RustBlast to etch and neutralize rust, and RustSeal to permanently seal the surface. Unlike a standard primer that still needs a topcoat, RustSeal is a finished, non-porous coating rated to 600°F that needs no topcoat for rust protection.
Yes. RustSeal is formulated for rusted metal, so tightly bonded or sandblasted rust does not need to be removed before coating, only loose scale, dirt, and oil. RustBlast in Step 2 etches and neutralizes remaining surface rust before RustSeal seals it permanently.
Yes. The kit is used on frames, leaf springs, coil springs, axles, floor pans, and trailer frames in addition to full chassis coating. RustSeal's flexibility keeps it from cracking or peeling as suspension parts flex under load.
Recoat within 2 to 6 hours, once the previous coat is dry to the touch and leaves no fingerprint. If more than 8 hours pass, wait 24 hours and lightly scuff the cured coat with a 320 grit pad before recoating.
Apply RustSeal between 55 and 82 degrees F (13 to 28 degrees C). Higher humidity shortens cure time and lower humidity lengthens it, since RustSeal cures by absorbing moisture from the air rather than by evaporation.
Degrease with KBS Klean, etch with RustBlast, rinse and dry, then brush or spray two thin coats of RustSeal at 2 mils each with a 2 to 6 hour recoat window. Stir RustSeal thoroughly before and during application to keep pigments in suspension.
Yes. RustSeal bonds to galvanized steel and aluminum. For new, smooth, or shiny metal, lightly scuff with 400 grit sandpaper before KBS Klean and RustBlast, and keep KBS Klean dilution and contact time on the shorter end for alloys and non-ferrous metals.
Clean brushes and spray equipment immediately with KBS #1 Thinner or lacquer thinner. RustSeal must be cleaned up before it dries; once cured, it cannot be removed by any solvent. If it contacts skin, remove immediately with thinner followed by soap and water.
One kit covers a full-size car or truck frame, or roughly 50 square feet with two coats. Expect up to 50% less coverage on bare wood, rough, or sandblasted surfaces since they absorb more material per coat.
If the frame will stay out of direct sunlight, RustSeal alone is the finish and no further step is needed. If it will be exposed to UV, topcoat with BlackTop, KBS Top Coater, or KBS MAXX once the final RustSeal coat is dry to the touch, typically 3 to 6 hours later.
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