"micky" wrote in message
...
My shop is in my basement, which has always seemed to be a very dry
floor. However, about 4% of my cords, my spare radio and tv knobs,
and the handles of my tools get a think layer of some sort of mold on
them. It's like a grey dust. (Or some other light color, I forget.)

I wasg them in the dishwasher and they come out clean, but once in the
basement again, after a few months, U notice that the same ones have
mold. And the rest never get mold.

I suppose I could just ignore this, since it doesn't spread, but I
wonder if any of you have ideas. No other part of my house is neat
or clean, but the shop is the most important place, and I'd like it to
be clean.

The plastic in some tool handles will break down over a period of time. It
is just bad quality plastic. Even some other wise good tools have this
problem.
If it only some tools and always the same ones, you just have to replace the
tools when the handles fall off.