Preparing Sheet Metal For Painting

Spray the metal with compressed air.

Preparing sheet metal for painting.

If you need to paint inside choose a well ventilated area and consider using a respirator. The goal is to remove any dust dirt or other particulate buildup that could affect the texture of the metal surface. No matter what the material it s hard to apply a proper coat of paint if you re brushing over bits and particles. Start with a wire brush photo 1.

Sanding and applying primer. With the rust removed sand the entire surface to smooth out uneven areas and dull the surface so the primer and paint can adhere. Some metals are pre coated with an oil that is designed to. Remove loose and peeling paint.

Prime the surface with a primer made for metal. The vinegar is a mild acid which acts to etch the galvanized coating so the paint will stick. Scrub partially rusted metal areas with a wire brush to remove flakes and powdery surface rust then prime with a rust inhibitive primer. Wipe the galvanized surface down with white vinegar.

If you haven t already spread out a drop cloth or a large plastic sheet. Surface preparation is the key to success when you prepare metal for priming and painting. To properly prepare new metal surfaces use mineral spirits to remove grease and apply a. Spray the sheet metal with white vinegar and wipe it down with a clean rag.

Things you ll need chemical degreaser distilled white vinegar lint free cloth high grit sandpaper or wire brush exterior latex primer exterior latex paint paintbrush or roller rubber gloves. Paint will not adhere to dirty oily surfaces. For large flat surfaces use a sanding block to get even pressure. 5 important steps preparing metal for paint clean the surface.

Once done you can paint over rust. Preferably set up your painting area outside. However badly rusted metal areas need more prep work and possibly a special primer. Introduce your secret weapon the secret to painting galvanized steel is white vinegar.

The vinegar s acidity will further abrade. Go over the metal with a wire brush to remove any oxidation. If the old paint is in poor condition you can remove it by hand wire brushing sanding.