Painting of galvanized metal

Thank you. Very interesting. Could it also be that if the drying time is not observed, the brush strokes become more visible or even more occur in general?

Best regards

Yeah.
Do you know how to almost completely avoid them and get a surface close to industrial paint? Roll with a paint roller, then immediately lightly smooth out with a fine-haired brush, really very lightly. If necessary, thin the paint a bit, it then spreads better. Really, it works. You can almost get piano quality. Karsten

I just have to think about how someone in my neighborhood got a new fence made of galvanized metal. There was actually talk that you were only allowed to paint it after seven years (!). I found that a funny idea: all new Audis only in silver

A galvanized part can be immediately treated with any surface finish you want after delivery to the private customer. If it was electro-galvanized, it will rust outdoors. If it was hot-dip galvanized, the part is intended for outdoor use right away and will last a very long time. It only fails when the hot-dip galvanizing is damaged in certain spots (e.g., scratched). The surface is brittle and breaks, for example, when bending or similar.

If you don’t want to deal with rust, buy stainless steel. The joke is, in purchasing, stainless steel doesn’t cost (or barely costs) more than steel plus surface treatment. If I could somehow make a fence from semi-finished materials (I can’t weld, a colleague would cost money), I would definitely put up a V4A fence and be protected against direct seawater.

Metals are normally not painted with a brush and such but sprayed. In mechanical engineering, parts are usually powder-coated, because this surface treatment is very impact- and abrasion-resistant. However, it’s not exactly cheap.

Having it powder coated would have caused me considerable additional costs. I was able to paint it wonderfully with a roller. The appearance is very close to powder coating.