How to remove rust from EMF shield

[arroz]

Hi!

Restoration of an LC III is going great, board recapped is working perfectly! Now, the top shield is in a sad state (see photo). What's the best way to clean this? Assuming I separate the shield from the case, would a vinegar bath for a few hours work? What techniques do you use?

The video and SCSI ports are also quite rusty. What do you recommend for those?

Thanks,

Miguel Arroz

 

[finkmac]

evaporust will get the corrosion off, but will also strip the coating... meaning it'll oxidize again. a clear or zinc coat will prevent that.

 

[Phipli]

I use a wire brush on a Dremel or an angle grinder depending on how bad it is, then paint it with electrically conductive paint if you're behaving, or just zinc primer if you just want to preserve it.

 

[Phipli]

It doesn't look too bad to be honest. The main issue is that it is hard to do the other side without removing it, and removing it is generally a destructive process (they melt the plastic to hold it in place).