Can Metal Replacement Dome Assembly for Ventline Ventadome Trailer Roof Vents be Painted

Question:

Trying to decide if I need to paint my Replacement Galvanized Roof Vent Dome? Any suggestions or thoughts?

asked by: DWIGHT W

Expert Reply:

Replacement Dome Assembly # BV0534-00 doesn't have to be painted but you could paint it if you want to. There are special requirements for painting galvanized metal though. The first thing you will need to do is clean the galvanized parts with water-based cleaner/degreaser to remove any of the oily film on the parts from the galvanization process.

Once clean you will need to use a water-based primer. Do not use a petroleum-based primer because the oil can interact with the zinc on the parts left over from the galvanization process.

And then you would use a water-based paint to finish.

Most paint companies like Krylon and Behr, and certainly others, make primers and paint for galvanized steel and they should be available at your local home improvement store. I would not get a 2 in 1 primer/paint because with separate layers of primer and then paint you will have that much more protection. And be sure not to skip the cleaning/degreasing step!

expert reply by: Michael H