Painting to be used on parts must be comply the following specs :
· Resist UV.
· Resist water (handle part will be outside).
· Resist low/high temperature (-10°C to +40°C).
· To have the proper adhesion on zamak surface (adhesion test to be proceeded).
· Use liquid painting (no powder painting).
See attached the spec data sheet of the painting (TOHPE), our painter used before, you can forward these data sheet to supplier.