How To Prep Sheet Metal For Paint

The acidity of the vinegar will react with the metal treating the surface to promote paint adhesion.

How to prep sheet metal for paint.

Once the metal has dried dampen a cloth with white vinegar and wipe the surface down. 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. With the rust removed sand the entire surface to smooth out uneven areas and dull the surface so the primer and paint can adhere.

The disk is smoother and will not eat into the metal surface allowing you to give the metal a good sanding until all the material is gone and the surface is nice and clean. Start with 120 grit sandpaper and work to finer grade sandpapers ending with 320 grit. Here a powder free latex glove protects the clean primer as we feel the steel. The armor and bumpers come unfinished and will need to.

Choose a type of paint. Black in color ppg dp90lf does help us to see imperfections but we can t see them all. 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. See all 28 photos.

As soon as the top layers of old paint or material are gone switch up to a higher finer grit. For large flat surfaces use a sanding block to get even pressure. All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface. Purchase products that are labeled for metal and contain a zinc additive.

Sanding and applying primer. However badly rusted metal areas need more prep work and possibly a special primer. Clean new galvanized metal surfaces with a water based cleaner degreaser to remove any oil or and contaminants. Use a light gray primer for a light final paint color and a black primer for a darker final color.

Consider finishing off the sanding with a 200 grit sanding disk. To properly prepare new metal surfaces use mineral spirits to remove grease and apply a rust inhibitive primer before painting. In this video i ll go over and show you how i paint raw metal or bare steel products from jcroffroad.