Plastic knobs, fungus and cleanup

[wa1vwl]

A buffing wheel might work or it might melt plastic knobs. I know of
several individuals who tried that on some Collins knobs only to end up
with burnt spots. There's nothing like some kind of light abrasive and
polishing compound and lots of elbow grease. I use stuff to remove
scatches on plexiglass windshields and a small piece of terry cloth.
Finish up with a toothbrush and it does a nice job.

73/Gerry/W1ID

Bill Coleman AA4LR wrote:
>
> On 3/18/99 4:51 PM, Christian Fandt at cfandt at NETSYNC.NET wrote:
>
> >As for cleanup and restoration, the once shiny surface of a knob (or
> >screwdriver handle) ends up dull and somewhat pitted -depending upon the
> >severity of the collection of fungus. Anybody devised a way to bring back
> >the original gloss? Seems a clear lacquer or enamel paint would help a bit,
> >especially to at least seal the surface.
>
> I have a friend who restores antique AM table radios of the 40's / 50's.
> His technique for plastic knobs and cases is to use a soft buffing wheel
> mounted in a workbench grinder. The buffing wheel gets all the crud off,
> and the fungus doesn't come back. It will also take out small
> imperfections and scuffs.
>
> I don't know where he got the wheel, but I can ask.
>
> Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at radio.org
> Quote: "Not within a thousand years will man ever fly!"
>             -- Wilbur Wright, 1901
>
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