Preparation
Trims, wheels and covers are removed where needed, then the underside is cleaned, dried and mechanically prepared before treatment.
Preparation detailsRust Wales brings the RustOust underside protection process to drivers across South Wales and beyond. We inspect, prepare, repair where needed, underseal thoroughly and protect hidden cavities with wax.
Good rust proofing is not a quick black coating over the top of corrosion. The RustOust process starts with access, cleaning and preparation so the treatment is applied to the right surface.
Trims, wheels and covers are removed where needed, then the underside is cleaned, dried and mechanically prepared before treatment.
Preparation detailsIf preparation exposes holes or heavy pitting, we talk you through the repair options before moving ahead.
Rust repair optionsMultiple underside coating layers build a durable underseal finish across the floor, sills, arches and exposed structure.
Rust proofing processHidden cavities are blown clear and injected with heated wax to help displace moisture and slow corrosion from the inside.
Cavity wax process


Wet weather, road salt, coastal air and muddy lanes are hard on vehicle undersides. Rust commonly starts around seams, sills, wheel arches, subframes, chassis rails and cavities that hold damp debris.
We target the searches that matter because the work is specific: rust proofing Wales, car underseal Wales, cavity wax South Wales, 4x4 rust treatment, camper van underseal and classic car rust protection.
Long-tail searches matter when they match real jobs. Classic cars, 4x4s, campers, vans and imports all need slightly different thinking before underseal and cavity wax are applied.
Sympathetic underside protection for classic and vintage cars, with process photos and paperwork for the history file.
Classic car rust proofingPreparation, underseal and cavity wax for off-roaders that collect mud, water and salt around chassis sections.
4x4 underseal WalesRust protection for camper vans and motorhomes before touring, winter storage or long-term ownership.
Camper van rust proofingPreventative treatment for imported vehicles before they spend years on wet and salted UK roads.
Book an import assessmentThe workshop is in Llandow near Cowbridge, with customers travelling from across South Wales for underseal, cavity wax and underside restoration.
Pop in for a free underside assessment or call the workshop to talk through the condition of your car, 4x4, camper, van or classic.