How Do I Paint Galvanized Sheet Metal

The secret to painting galvanized steel is white vinegar.

How do i paint galvanized sheet metal.

Spread the paint across the surface with long linear strokes. The vinegar is a mild acid which acts to etch the galvanized coating so the paint will stick. Brush the primer with a synthetic bristle paintbrush or if you want to avoid brush marks spray it using aerosol cans or air spray equipment. Here s how to paint galvanized metal.

The acid in the vinegar will act to etch the metal and help the paint adhere. This paint produces a high build tough and weather resistant flexible sheen finish that is often chosen by tradesmen due to it s fast drying times. Prime the surface with a primer made for metal. Allow the primer to dry completely.

If the ducts will get hot use a primer with a high heat resistance. Use a primer designed for use on metals. Clean new galvanized metal surfaces with a water based cleaner degreaser to remove any oil or and contaminants. Prime the metal with an acrylic latex metal primer.

You first are advised to prepare the surface of the item to be painted so that the paint for galvanized metal stands its best chance of looking good for several years. Once the metal has dried dampen a cloth with white vinegar and wipe the surface down. Selecting the correct paint for galvanised metal. Rinse the metal and let it dry completely for several hours.

Apply two topcoats of paint on top of the primer. All you need to do is clean any dirt and grime that has built up on the surface and apply a direct to galvanised metal paint like 1805 high build vinyl finish. White vinegar is both effective and non toxic so it is much safer to use than your average industrial solvent. Use the tip of your brush to dab the paint into grooves creases and textured areas.

Apply a rust proof primer to the galvanized metal with a paint brush. T wash etch primers sweep blasting and weathering. Check to make sure there are no gaps or missed spots before moving on. Apply a second coat.

Brush on the first coat of paint. All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface. Wipe the galvanized surface down with white vinegar. Wash the metal thoroughly with hot soapy water.

Rinse the metal with a weak solution of water and ammonia and allow it to dry. There are four recognised methods of surface pre treatment that produce a sound substrate for a paint coating.