In article ,
Phil Allison wrote:

Bizarrely, there are contact cleaners designed for that which DO
cause problems. A can of RS "Switch cleaner" made a bit of a mess of the
inside of the plastic case of an old radio, by melting the black plastic
into runny black goo.

** This the one?
http://au.rs-online.com/web/p/precis...asers/0180831/
That is a strong grease solvent, meant for mechanical stuff.

Not that one. It was a *lot* of years back, and his since been
used and chucked. A round can with screw-on lid, and internally a
"reversible" aluminium delivery tube, which you rotated 180' and
poked out through a hole in the lid to use it.

Khaki green print on white. No idea what the RS part code was, but
it was "own branded".

But it was definitely a switch cleaner ... it never damaged a switch
or pot, but it didn't agree with that thermoplastic case

--
--------------------------------------+------------------------------------
Mike Brown: mjb[-at-]signal11.org.uk | http://www.signal11.org.uk