How To Prep Sheet Metal For Paint

In this video i ll go over and show you how i paint raw metal or bare steel products from jcroffroad.

How to prep sheet metal for paint.

Once the metal has dried dampen a cloth with white vinegar and wipe the surface down. Zinc helps prevent rust from developing in the future. Invest in a rust inhibiting metal spray paint and spray primer. The acid in the vinegar will act to etch the metal and help the paint adhere.

The armor and bumpers come unfinished and will need to. Purchase products that are labeled for metal and contain a zinc additive. All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface. With the rust removed sand the entire surface to smooth out uneven areas and dull the surface so the primer and paint can adhere.

Use a light gray primer for a light final paint color and a black primer for a darker final color. Choose a type of paint. Here a powder free latex glove protects the clean primer as we feel the steel. However badly rusted metal areas need more prep work and possibly a special primer.

The acidity of the vinegar will react with the metal treating the surface to promote paint adhesion. The first step is to clean off loose rust and flaking paint and then apply a rust inhibitive primer. Sanding and applying primer. Black in color ppg dp90lf does help us to see imperfections but we can t see them all.

Consider finishing off the sanding with a 200 grit sanding disk. For large flat surfaces use a sanding block to get even pressure. Start with 120 grit sandpaper and work to finer grade sandpapers ending with 320 grit. To properly prepare new metal surfaces use mineral spirits to remove grease and apply a rust inhibitive primer before painting.

For painted surfaces that are in sound condition remove dust with a clean dry cloth de gloss the surface with light sanding and wipe with mineral spirits to ensure good adhesion. You don t need to get down to bare shiny metal just clean off the flakes and powdery surface rust that prevent paint from adhering. As soon as the top layers of old paint or material are gone switch up to a higher finer grit.