- Encrypted paymentCard details handled by Stripe
- Tracked worldwideFree on 3+ bottle bundles
- 30-day guaranteeMoney-back if it is not for you
- Clear labellingCoverage and results stated honestly
Stock up & save
Choose your RustGuard™ bundle
Prices in USD. Free tracked shipping on 3-bottle bundles and above.
Rusted metal in, paint-ready surface out
Brush RustGuard™ over sound rust, let it cure, then paint. Images are illustrative — results depend on surface condition and preparation.
Where rust shows up first
The areas worth checking before you order.
- Ladder frame rails, crossmembers and shackle mounts
- Bed floor, wheel well liners and stake pockets
- Tailgate hinge area and lower tailgate skin
- Tow hitch receiver, safety chain loops and mounting plate
- Cab corners, rocker panels and step area
- Leaf spring hangers and shock mounts
Step-by-step on this job
- 01
Pressure wash the underside
Get the mud and salt off, especially inside crossmembers and above the leaf springs. Then let it dry for a full day.
- 02
Scrape the scale
A stiff scraper and a wire cup brush on flaking areas. Aim for a surface where nothing lifts, not for shiny steel.
- 03
Degrease and mask
Degreaser on the oily areas, then tape off lines, sensors and rubber components.
- 04
Brush along the rails
Work the converter into weld seams, gusset edges and around every bracket. A long-handled brush saves your shoulders.
- 05
Topcoat after 24 hours
Chassis black or a rubberised underbody coating over the cured film. Re-treat any spot that shows orange bleed-through.
What not to do
The cautions that save a re-do.
- Mask brake lines, fuel lines and ABS sensor wiring before you start
- Do not coat sliding or threaded surfaces you need to adjust later
- Check inside frame drain holes — untreated internal rust keeps working
- Load-bearing metal that has thinned needs a fabricator's opinion first
Typical quantities
A starting point based on the jobs customers order for most often.
| Job | Bottles |
|---|---|
| Tow hitch and rear crossmember | 1 bottle |
| Bed floor | 2 bottles |
| Full ladder frame, light-duty | 3–5 bottles |
| Full frame plus bed, heavy-duty | 5–8 bottles |
| Cab corners and rockers | 1–2 bottles |
Work out your exact quantity
Area
100 sq ft
Bottles needed
3
Recommended bundle
×3 — $42
Based on up to 55 sq ft per bottle on smooth steel, adjusted for surface condition. Estimates only — measure generously.
Frequently asked questions
Is one coat enough on a salted frame?
Rarely. Salt-pitted frames usually want two thin coats, with the second going on once the first has turned dark.
Can I do it with the truck on the ground?
You can reach the bed, hitch and rockers. Frame rails realistically need ramps or a lift.
Will it survive winter road salt?
The converted film plus a good topcoat is exactly the intended combination. Bare converted film with no topcoat will not last as long.
What about inside the frame rails?
Converter reaches only what you can wet. For internal cavities, add a cavity wax after the external work is topcoated.
Keep reading
- Rust converter for carsTreat surface rust on car sills, wheel arches, floor pans and subframes with RustGuard™ — convert, prime and repaint without blasting.
- Rust converter for trailersTreat rust on trailer frames, decks, ramps and hitches with RustGuard™ — brush on, cure 24 hours, topcoat. Bundles from $24.
- Rust converter for industrial and structural steelMaintenance coating for structural steelwork, plant, tanks and handrails. Coverage planning, prep grades and topcoat systems.
- Rust converter for iron and steel that leaves a paint-ready surfaceRustGuard™ rust converter reacts with existing rust and leaves a stable, primed surface you can paint. Bundles from $24 with worldwide shipping.
- Rust prevention guideA practical prevention programme for vehicles, tools and outdoor steel — coatings, drainage, storage, salt management and an inspection schedule.
Stock up & save
Choose your RustGuard™ bundle
Ships from our US fulfilment partner, typically 3–7 business days. 30-day money-back guarantee.