Repainting Galvanized Siding

If you are striping a small area then you can do very well with a bucket of water that has some bleach and tsp in it.

Repainting galvanized siding.

Wipe the galvanized surface down with white vinegar. Prime the surface with a primer made for metal. Paint applied over this oily surface or clear passivator will peel quickly. Wait for this layer of paint to dry and then apply a second coat.

The vinegar is a mild acid which acts to etch the galvanized coating so the paint will stick. There are a few different methods of doing this depending on how good of a job you want to do how much time and energy you have and how large of an area you are doing. Possible cause new galvanized metal a product used to make corrugated sheets gutters and downspouts is usually smooth and is coated with either a layer of oil to prevent white rust or is passivated. Apply the acrylic paint to the wall on top of the primer in the same way you applied the primer to the metal siding.

This will help clean away all the dirt that accumulates on the steel siding. It also helps to peel away the previous paint on the steel siding leaving it neat and clean. Things you ll need chemical degreaser distilled white vinegar lint free cloth high grit sandpaper or wire brush exterior latex primer exterior latex paint paintbrush or roller rubber gloves. Once dry remove the plastic sheeting and masking tape.

Go over the metal with a wire brush to remove any oxidation. Step 1 clean the steel siding.