The exhaust of your vehicle is responsible for moving the hot gases from the engine out to the rear of the car. Between condensation from the hot gases hitting cold steel, road conditions such as salt and the material used for the system, your car's exhaust can rust fairly easily. One way to prevent this is to paint the exhaust, which will protect the exterior from corrosion and prolong the life of the tubing. Doing this should take about and hour to do depending on the size of the vehicle.
Lift up the vehicle using the jack and place it on jack stands. Make sure the vehicle is secure before you crawl underneath it.
Rub the entire exhaust using the red scuffing pad. This provides a tooth for the paint to mechanically adhere to as well as removes any surface rust on the system.
Lay the masking paper and masking tape all over the underside of the vehicle, excluding the exhaust. Anything that you don't want covered with paint should be masked off.
Shake the can of paint and spray a light coat of paint across the length of the exhaust. This should be a misting coat and should not cover the entire exhaust with color, just a light application. This is to provide an additional level of mechanical adhesion to the exhaust to ensure that it won't flake or scratch off easily, making it last longer.
Spray a heavy coat of paint along the exhaust. This should coat the exhaust completely, and should have one uniform color. Apply a third coat if you still feel that the paint is too thin or if it appears translucent.
