On Sun, 16 Sep 2007 23:00:40 -0500, Jon Elson
wrote:

The Davenport's wrote:
I turned some Rulon today to make some bearings. Nice stuff, although you
really have to keep the cutoff tool close to the chuck.

Tim Wescott


Nothing much to say about the tooling other than the "sharp, sharp, sharp"
thing is deadnuts accurate.

However, WEAR A RESPIRATOR!!!!!!!

The fumes are bad, both for short- and long-term exposures.

Short-term can cause BAD headaches, nausea, burning eyes and a nose that
only Rudolfs mom would love.

Long-term can cause a couple kinds of cancers and other never-get-overs.
Huh? This stuff is Teflon and rust, as far as I know. Unless
you are really going at it in high speed production, you
shouldn't be heating it anywhere near the decomposition
temperature of Teflon, which is 450 C. Rust doesn't sound that
poisonous, although the dust might be nasty.

Is there something else in there?

Jon
I watched it being made today.....no rust, however some Rulon has
bronze in it. This makes sense for a bearing surface.

This product is only made by Saint Gobain and there are quite a few
variations of it.

There is no danger associated with this material except when it's
heated like you say and then only minor complications.

If you need any specific information about Rulon let me know.

Regards

Regards
Daveb