Painting on cast bronze

[clandestinho]

Hi,

does someone know a paint system that will work on cast bronze? I need to paint some machined parts for sea water pumps which will be used in a marine environment. I don't know what the particular alloy is but most likely the parts contain lead.

any advice will be highly appreciated.
Thanks,,,

 

[btrueblood]

?

Are you not using a bronze that is resistant to seawater corrosion? If so, why paint it? If not, do you expect a coat of paint to make it resistant? If just for looks, I'd expect any decent epoxy paint to hold up well.

 

[coatingengineer]

Hi. The copper in your cast bronze will oxidize (and dis-bond) at temperatures below typical heat cures of many epoxy- and phenolic-based paints known for their corrosion resistance. This makes paint adhesion difficult.

Consider 3M ScotchKote 134:

http://solutions.3m.com/wps/portal/...AF02J1MHGK22C53_nid=0CTKNFP9X7be13QRJVC6DLgl.

Best wishes.


William Gunnar

http://www.IndustrialCoatingsWorld.com