Painting Metal Sheets

Painting a galvanized steel panel roof is not all that different from painting other metal objects but you must ensure that the surface is perfectly clean before beginning the application process.

Painting metal sheets.

If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it. How to paint galvanized steel. Acrylic metal paints are available for paint on application or in spray cans which can shorten painting time significantly. Before you jump right into it it s critical to prep the nonstick surface so it can hold paint.

You ll also need to purchase a primer designed for metal roofs. To restore lightly rusted metal surfaces to their original state use a brush to clean off loose rust sand the area and apply a high quality rust inhibitive primer e g. To paint a metal roof you ll need to use an oil based paint if you have a terne metal roof or an acrylic based paint if you have a galvanized metal roof. 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.

As with all metal painting projects proper preparation makes the difference between a quality paint job and how well the newly painted item will stand up to age and weathering especially when the metal is used outdoors. The acid in the vinegar will act to etch the metal and help the paint adhere. However if you want to paint over prepainted metal you re in luck. Because of its smooth slick zinc coated finish galvanized steel can be tricky to paint.

Metal surfaces require specialized primer and paint for good paint adhesion. Before painting you ll still need to do a little. Start by cleaning the. When painting galvanized steel all paint systems used should be specifically formulated for use on galvanized steel and applied in accordance with the paint manufacturer s recommendations.

Galvanized steel is a great material to use for a variety of tools products and projects and it s environmentally friendly. In fact roughly 69 of steel is recycled in north america each year. Prepainted metallic surfaces can be treated almost like any other basic latex or oil painted surface. The choices of paint for galvanized metal will depend upon both the application and service environment.

The painting process is actually very straightforward because the surface of galvanized steel is relatively smooth and consistent. Once the metal has dried dampen a cloth with white vinegar and wipe the surface down.