On Mon, 4 Aug 2008 19:44:13 +0100, "Dennis Pogson"
wrote:

From my very distant memories of childrens' playground slides, candlewax is
the best metal-to-plastic or metal-to-seat-of-pants lubricant. Pity we can't
make sail slides out of same! Try it on your obstinate zip fasteners.

There are at least two kinds of wax used for candles, the kind from
petroleum and the kind from bees. Paraffin, from oil, is a better lube
for playground slides, zippers, and many applications. Bees wax is
somewhat sticky, but it makes better candles.

Casady