Painting galvanized steel

[it's not over]

I got an extension made for my fert sower si it can hold 3 600kg bags but it was mistakenly galvanized. It's a new sower and I wanted it painted.what prep work needs to be done so I can paint the new galvanised extension

 

[Davy]

I've no experience in it at all but id have thought you'd get away with painting the top coat straight on. The galv would be the primer

 

[solo]

Paint direct on like galvanised roof sheets I would have thought.

 

[Deutzdx3]

A primer is available specifically for galvanised steel, then 2-3 coats of polyurethane topcoat in which ever colour required. Ideally blast the galv to key it.

 

[Paddington]

Need an etching primer.

 

[Hilly]

Don’t it will just peel.

 

[Raumer]

Mordant solution then normal primer and top coats. Have used it to do galvanised chassis on Landrovers.

 

[Steevo]

Mordant solution then normal primer and top coats. Have used it to do galvanised chassis on Landrovers.

That's the one!