If you have a kitchen then you probably already have this handy solution.
Can you paint galvanized steel pipe.
The enamels in alkyd paints can react with the slick zinc finish on a galvanized steel surface leading to poor adhesion and peeling.
Once the primer has dried you can apply the paint of your choice in the way that.
Clean use a water based degreaser to wash off the surface oil and passivator layer.
The last time i purchased it was about 12 for a quart which will probably do galvanized trim on several.
The reason you get conflicting answers philip is that painting galvanized materials is a difficult problem but no one is going to say it s impossible because it s not.
If you do it the wrong way though peeling paint and bleed through can make the problem worse.
It will create a conversion coat that will allow paint to adhere properly without degrading the galvanize.
Plus no one can say what s good enough for you.
When painting galvanised steel you have to be aware that some primers and metal paints are not suitable.
White vinegar is both effective and non toxic so it is much safer to use than your average industrial solvent.
For the most dependable results look for paints that are formulated specifically to bond to galvanized steel.
Alodine is a clear liquid that can be wiped on then rinsed with plain water.
Alkyd and oil based paints may seem to stick at first but the oily layer eventually sheds the paint.
You can use a dedicated galvanised metal paint or yo.
Galvanized metal is difficult to paint because it s coated with a layer of oil to prevent white rust.
The galvanizing process is used to protect steel drainage duct and water pipes as well as metal gutters from corrosion but leaves an insipid grayish patina that actually resists certain types of paint on visible water pipes.
Whether the pipes are made from copper galvanized metal black iron or cast iron the keys to proper sealing and adhesion are preparation of the material and priming.
Galvanized water pipes are a necessary but often unattractive feature in many homes.
All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface.
Avoid using alkyd based paints such as spray paint on galvanized steel.