开云体育

Just my @0.02USD ...

I would be inclined to leave well enough alone.? Given the age of the synth (~40 years), I would be amazed if it *didn't* have a small amount of rust somewhere.? And what I see in your photo is definitely a *small* amount of rust.? I don't know how the plastic is attached, but it wouldn't surprise me if adhesive was used.? Yamaha build quality in the 1980s was excellent, so I would expect them to use plenty of adhesive.? 40-year-old adhesive is very hard to remove:? solvents often have little or no effect, and scraping/grinding it off rarely results in a clean surface.? So, any repainting you do a) may look as bad or worse than your photo; and b) may actually protect the metal less than the original finish.

Rust is iron/steel's way of preventing further corrosion.? A small amount of it, while not perfect, is far from a terrible thing.

Regards,