Rust occurs when oxygen and moisture react with metal to corrode and weaken the surface. If this process continues unabated, it can weaken the metal to a point where it will break. Light cars and trucks, especially older vehicles, are susceptible to rust on their body panels or frame. Repair work can be expensive, and a rusted frame can render a vehicle unsafe to drive. Locating rust spots and treating them before they weaken the vehicle's structural integrity can save you a lot of money in the long run.
Things You'll Need
- Wire brush
- Rust-converting primer
- Paint topcoat
- Automotive solvent
Clean any grease, dirt or oil from the rusted surface with an automotive solvent. Allow the area to air dry.
Clean any loose pieces of rust from the area, using sandpaper or a wire brush.
Clean the area again with an automotive solvent. Make sure any loose pieces of rust are removed from the area. Allow the area to air dry.
Apply a rust-converting primer to the area. Follow the instructions on the can for the specific brand you decide to use. The primer will react chemically with the rusted surface, and inhibit rust in the future.
Apply a topcoat to the area if necessary. For areas on the underside of the car or the frame, you may not wish to apply a topcoat. For areas on the outside of the vehicle's body, apply touch-up paint that matches the color of your car.
Tips & Warnings
- When using spray paint, several light coats work better than one heavy coat. Allow time between each coat for the layers to dry.
- The fumes from spray paint cans can be toxic. Always work in a well-ventilated area.
How to Paint a Rusted Car
A car pocked with rust spots doesn't have to remain branded with these unsightly signs of age and decay. It's possible to...
How to Paint Metal Rust
When metal surfaces become rusted, they can really become an eyesore. Luckily, a coat of quality paint can rejuvenate an old, rusted...
How to Convert Rust to Primer
The rusted surface of a vehicle cannot be painted over without proper preparation. Painting over rust without removing it doesn't stop it...
How to Prepare a Rusted Galvanized Metal Roof for Painting
Galvanized metal roofs are coated with a layer of zinc that inhibits rust. Unfortunately, over time, this coating can fail, leading to...
How to Paint Over Rusty Metal
Most people know how destructive rust is to metal, so discovering a rusted area on your metal patio furniture, decorations or other...
How to Paint Rusty Metal With Rustoleum
Rustoleum manufacturers paint and primer and offers a product line specifically for covering and protecting metal surfaces. They can be used on...
How to Paint Over Rust Without Sanding
Rust not only looks unsightly, it is corrosive. If you leave it untreated, it can ruin the metal surface on which it...
How to Paint Over Rusted Chrome
Iron combines with oxygen to form rust. Rust can cause unsightly and expensive damage to a smooth, shiny surface such as a...
How to Paint Over Rust-Oleum
Rust-Oleum paint covers and seals in rust on metal walls, panels and parts. It is used to prevent the spread of rust...