I'm thinking evaporation too.. They're still usable in the sense that
they still charge up the buffing wheels, but boy they are hard. I was
wondering if you can reverse it or slow it down a little by, say,
wrapping them in a slightly damp paper towel inside a zip-lock bag for
awhile.. Guess I'll have to experiment a little. As much as I use
them, they could last a life time.. at least my life time anyway..
-Jim

On 1/2/2010 7:21 PM, Martin H. Eastburn wrote:
Just don't get it to hot. You will boil off the lighter oils.
That might be what is happening. Evaporation. Something like shoe polish
wax in a can. Cracks into wedges but can be used.

Martin

John wrote:
In message , Jim Hall
writes
I have some of those wax bars for charging up my buffing wheels for
polishing pen turnings. I've been storing them in zip lock bags
inside a brown paper bag and they seem to be drying out. There about
4 years old. Still seems like I can charge wheels ok but thinking
eventually these things will petrify and become useless. Any advice
on preserving, reviving or extending the life of these things..
Thanks.. -Jim

My basic understanding is many wax based with any abrasive suspended
in the wax. So re-melting may be an option