Re: Cleaning mag plates

[legendre]

Brake cleaner is fine, but you absolutely must use the chlorinated type, and not the "environmentally friendly" non-chlorinated version.

The former is basically tri-chlor or one of its many analogs, and will generally not harm most plastics / rubbers found in old electrical components, etc. The ‘friendly’ type is a nasty and aggressive solvent that just loves to melt plastic – it’s really better suited as a carb cleaner.

If you’re only cleaning metal, then either is OK – neither will leave a residue when it evaporates.