Painting Galvalume Siding

Prime the surface with a primer made for metal.

Painting galvalume siding.

Pour an exterior grade rust inhibiting primer into a paint tray and apply it to each roof panel. Use a long handled paint roller and apply primer until no portion of the metal is visible. The following paints are suggested for field painting galvalume. The areas to be painted should be dry and clean of visible soil grease oil or other contaminants.

All of the listed coatings will give good results. Common household products like comet mineral spirits and chlorine bleach can all be used to prepare galvanized steel for painting. Galvalume will reject paint unless it is properly treated. The secret to painting galvanized steel is white vinegar.

The vinegar is a mild acid which acts to etch the galvanized coating so the paint will stick. The mixture of zinc and aluminum protects the galvalume metal against corrosion and rust helping galvalume typically last much longer than galvanized steel. Wipe the galvanized surface down with white vinegar. Go over the metal with a wire brush to remove any oxidation.

To paint galvalume good coating practice should be observed as with painting any surface. If you have a kitchen then you probably already have this handy solution. White vinegar is both effective and non toxic so it is much safer to use than your average industrial solvent. All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface.

Galvalume is a type of sheet steel used in a variety of applications including roofing siding furniture gutters and pipe. Painted metal roofs come with a baked on factory finish and you can re coat these as well as paint bare metal roofing with acrylic latex paint. You can also use oil based alkyd paint but. Most galvanized materials will have a light coat of oil to protect the surface while in transition.

Usually it s necessary to clean off this coating before applying any paint. If you want to paint a galvalume surface consider a crucial point.