Painting Sheet Metal Shop

Before painting shiny sheet metal abrade it with fine sandpaper or steel wool to make it more paint friendly.

Painting sheet metal shop.

Because of its smooth slick zinc coated finish galvanized steel can be tricky to paint. If the sheet metal is smooth to the touch you will need to texturize it before painting. Unfortunately you can t abrade aluminum by sanding it because the surface is too hard. This will allow the paint to adhere to the metal.

While you re cleaning the surface you ll also want to remove leftover paint if any. Don t forget to wear gloves eye protection and a respirator mask. Sheet aluminum must be pre treated through abrasion to help encourage it to accept paint. Using high grit sandpaper or steel wool rub the surface of the sheet metal.

If the paint on the building was an oil based paint you must use oil. How to paint galvanized steel. Oct 21 2016 here are some important tips on how to paint metal surfaces. Once the metal has dried dampen a cloth with white vinegar and wipe the surface down.

Before you jump right into it it s critical to prep the nonstick surface so it can hold paint. Once you ve roughened the surface wipe the sheet metal with white vinegar and a. Texturize the surface of the sheet metal. On older galvanized metal surfaces where the zinc coating has begun breaking down known as white rust use a wire brush or fine sandpaper to remove the chalky film before cleaning it.

Start by cleaning the. Like most types of metal surfaces sheet aluminum is hard slick and nonporous. Acrylic latex house paint suitable for painting on metal is recommended unless the previous coats of paint were oil based. If it s galvanized metal the magnet doesn t stick clean it with a detergent solution since the surface normally has oil on it which will prevent the paint from sticking.

Large cans may be the most cost effective option when painting large linear metal objects such as fences and backsplashes but spray paints e g rust oleum hammered metal finish spray 8 74. Create a rough surface on the sheet metal. To prep and paint metal you ll need shop rags acetone scuffing pad self etching primer and your choice of spray paint. The acid in the vinegar will act to etch the metal and help the paint adhere.

Analyze the surface of the sheet metal.