How to use — 3 easy steps
Wire-brush loose rust, grease and paint; wipe with a mild solvent if needed. Shake the can for 2 minutes.
Apply 10–12 in. from the surface in a side-to-side motion for even coverage.
Dry to touch in ~20 min; recoat after 1 hr for thickness. Full cure in 8–12 hrs.
Which Rust Solutions product do I need?
| Rubberized Undercoating & Bedliner Aerosol 14ozThis product | Surface Prep Wax & Grease Remover, 14oz. | Rust Solutions Matte Rust Paint - Aerosol (14 oz) | Rust Solutions Matte Black Rust Paint - Liquid | Corrosion Protection & Lubricant Aerosol 14oz | |
|---|---|---|---|---|---|
| Use it to | Coat & protect underbody, wheel wells & bed liners | Clean & degrease metal before painting | Paint over rust; touch-ups & tight spots | Paint over rust on full panels & large areas | Displace moisture, protect & lube metal |
| When to use | Heavy-duty protection & sound deadening | First — before any paint or coating | After prep — small areas & edges | After prep — big coverage jobs | Ongoing protection; moving parts |
| Format | 14 oz aerosol — textured black | 14 oz wipe-on liquid | 14 oz aerosol — Matte Black or Gray | Quart & gallon — brush, roll or spray | 14 oz aerosol |
| Price | $17.99 | $19.99 | $22.99 | $55.99 | $14.39 |
Description
Safeguard chassis, frames, and beds with Rust Solutions Rubberized Undercoating & Bedliner. This all-in-one formula sprays or brushes on directly over surface rust — no sanding or blasting needed — and embeds fiberglass strands for exceptional impact resistance.
Its flexible, UV-resistant finish seals out water and salt, halts further corrosion, and endures extreme temperatures. Compliant in all 50 states, it serves as both undercoating and bedliner, cutting downtime and prep costs for DIYers and pros alike.
Specifications
| Size | 14 oz aerosol |
| Formula | Fiberglass-reinforced rubberized coating |
| Finish | Textured black, UV-resistant, flexible |
| Apply over | Surface rust — no sanding/blasting |
| Coverage | ~10 sq ft per coat |
| Dry time | Touch 20 min; recoat 1 hr; full cure 8–12 hrs |
| Compliance | 50-state VOC compliant |