Painting Galvanized Siding

Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal.

Painting galvanized siding.

When working with pre painted wood or engineered wood siding paint the tops of coil stock galvanized nails to match the color of the house before loading them into the coil gun. Because of its smooth slick zinc coated finish galvanized steel can be tricky to paint. How to paint galvanized steel. Beside this the zinc content of the galvanized coating reacts with paint s binder to create a film that causes the paint to peel source.

Determine if the siding has been previously painted and what kind of paint has been used. If you did not do a good job of scraping off the old paint or there is chalking that you can t get to come off then you should first paint with a primer. Do not use alkyd based paints or oil based primer. Galvanized steel should not be painted with oil based paint.

If crawling around on a metal roof in the hot sun does. Alodine is a clear liquid that can be wiped on then rinsed with plain water. Some people use acrylic latex paint which is not designed specifically for galvanized metal so you will want to prime the surface before painting. Paints that are made for galvanized surfaces will require less prep work and will adhere better than other kinds of paint.

This hint comes from professional siding installers. Painting galvanized steel and other metal siding for galvanized steel or other metals you can use latex or acrylic paint. The last time i purchased it was about 12 for a quart which will probably do galvanized trim on several. Paint the tops of coil stock galvanized nails to match the color of the house before loading them into the coil gun.

Many paint manufacturers offer multi purpose enamel or a direct to metal paint. Your contractor will be able to determine if your siding is galvanized aluminum or another type of metal before beginning and will adjust the quote according. Painting galvanized steel is a simple enough job but it does require some specific tools and materials. Alkyd and oil based paints may seem to stick at first but the oily layer eventually sheds the paint.

Therefore it s important to follow the correct procedure when painting galvanized. Before you jump right into it it s critical to prep the nonstick surface so it can hold paint. It ll save you loads of time. Galvanized steel also requires special surface treatments before painting.

The paint that you choose will depend somewhat on how well you prepared your metal siding to receive the paint and what the surface of it looks like. Galvanized steel is less prone to rust since it has a special zinc coating which needs to be thoroughly cleaned and roughened so that the primer paint will adhere to it properly. It will create a conversion coat that will allow paint to adhere properly without degrading the galvanize.