How Do I Paint Galvanized Sheet Metal

There are four recognised methods of surface pre treatment that produce a sound substrate for a paint coating.

How do i paint galvanized sheet metal.

Wipe the galvanized surface down with white vinegar. 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. Use the tip of your brush to dab the paint into grooves creases and textured areas. Wash the metal thoroughly with hot soapy water.

Allow the primer to dry completely. Use a primer designed for use on metals. Spread the paint across the surface with long linear strokes. Rinse the metal and let it dry completely for several hours.

Brush on the first coat of paint. Prime the surface with a primer made for metal. 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.

Apply a rust proof primer to the galvanized metal with a paint brush. 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. The acid in the vinegar will act to etch the metal and help the paint adhere. Check to make sure there are no gaps or missed spots before moving on.

The vinegar is a mild acid which acts to etch the galvanized coating so the paint will stick. Rinse the metal with a weak solution of water and ammonia and allow it to dry. If the ducts will get hot use a primer with a high heat resistance. The secret to painting galvanized steel is white vinegar.

T wash etch primers sweep blasting and weathering. 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. Apply two topcoats of paint on top of the primer. Clean new galvanized metal surfaces with a water based cleaner degreaser to remove any oil or and contaminants.

Here s how to paint galvanized metal. All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface. If you have a kitchen then you probably already have this handy solution. Preparation of galvanized steel before painting.

To do this you can use a cloth that is damp with vinegar or mineral spirits rubbing it across the metal until it is smooth. Selecting the correct paint for galvanised metal.