The enamels in alkyd paints can react with the slick zinc finish on a galvanized steel surface leading to poor adhesion.
Galvanized steel building paint.
To prep metal for paint adhesion you must first clean it with soap and water remove light rust with a wire brush sand it with fine grain sandpaper and then in most cases prime.
Paint applied over this oily surface or clear passivator will peel quickly.
Get free shipping on qualified galvanized steel or buy online pick up in store today in the building materials department.
Get free shipping on qualified galvanized metal or buy online pick up in store today in the paint department.
You can also use oil based alkyd paint but.
For the most dependable results look for paints that are formulated specifically to bond to galvanized steel.
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.
Find metal exterior paint at lowe s today.
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.
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You can still add a coat of paint to your galvanized metal surface as long as you have a few important household tools and you follow these simple steps.
That means you re not painting steel you re painting zinc says gary vorick global training manager sherwin williams.
The zinc oxide forms a barrier that protects the steel from corrosion.
Galvanized steel or metal is a common building material.