Talc as Rust Protection

: Talc and asbestos are both amphibole minerals (a whole lot of minerals : are amphiboles - if it's a calcium / magnesium silicate, chances are : that it's an amphibole). _Some_ talc deposits have associated asbestos : deposits with them. _Some_ talc minerals have been mined from these : deposits, leading to contamination with asbestos.

: If you're selecting talc to make cosmetic grade talcum powder, you : didn't use these deposits anyway. You wanted something that milled : finely, and the last thing you need is some tough old fibre in there.

Thanks for the correction.

I did a quick Google search, and found this:

cite studies suggesting that talc by itself is a carcinogen.

-- Andy Barss

Jet 1442. I initially considered buying a more expensive lathe, but decided to invest somewhat more lightly to see if turning was for me. I'll probably upgrade some day, but for the time being, it's a great lathe at a great price. Not perfect, but it does everything fairly well and nothing poorly. It's all cast iron and weighs roughly 360lbs. with the cast legs. With the sand bags I added to a shelf between the legs it probably totals around

450lbs. Hope this helps.

Max

19 Oct 2004 21:13:21 +0000 (UTC), Andrew Barss

Scaremongering of the worst sort ("Talc kills babies every year!").

"another research undertaken in 1988 showed that 52% of respondents with ovarian cancer _regularly_ used talc"

I'll bet 52% of respondents with ovarian cancer regular drink water with breakfast too. But that has no correlation with cancer risk.

Now it may indeed be that talc and ovarian cancer are linked, but nothing on either of these two sites provides convincing evidence thereof.

We do know now that the dangers of asbestos to the general public (i.e. non-miners) is wildly overinflated.

More on asbestos available here:

scott

Preserve me from students armed witha quick blast of Google !

Secondly, did you look at the exposure mechanisms ?

First of all there's inhalation. We're trying to _wipe_ the tablesaw here, not to pretend it's Columbian Rustproofing.

Secondly - well, if you're doing _that_ with your tablesaw, you really need to get out more.

Finally you're into "tampons considered harmful" territory. Americn medical science is bad enough at the best of times, there being so many vested interests trying to skew the results. Since TSS was recognised, the veracity and independence of _anything_ involving tampon health risks is just a minefield of checking who paid for the study, and who is trying to rubish competitors products.

Dust exposure in a woodworking workshop is a serious issue. This week I've been exposed to epoxy (fume and sanding dust), a variety of timbers being sanded, spalted timbers (spores), damp timbers (spores), eroding firebricks, many sorts of asbestos sheet, silver-solder flux (which is pure evil in powder form) and the ever-present risk of my unearthed dust collector exploding. I've even got a jar of silex in there - air float silica, one of the nastiest inhalation hazards you can find. Just yesterday someone even lit up a cigarette in there.

So I'm going to worry about _talc_ somewhere between earthquake, flood and Attack By Giant Flying Robots.

And imagine this scenario. Talc in the air, the dust collector is collecting and you went and used PVC pipe.

Makes Grandma flying jets (over the Sinai of course) while putting on make-up kinda pale by comparison.

UA100

You can find the MSDS for talc at .

Note that it is _silica_ that is the suspected carcinogen, not talc. That's like, beach sand. Also note the allowable exposure--20 million particles per cubic foot or 2 mg/cubic meter. That's for chronic exposure, and that's actually quite a lot of talc.

A few years ago a spoof study was released stating that dihydrogen oxide, a primary constituent in certain types of foam, such as that used in the foam take-home food containers at restaurants, might be responsible for certain types of cancer. As you can imagine, the media ran with the story, creating a minor furor. A few environmental organizations even asked Congress to look into the matter.

Max

LOL!

A local talk show host had someone in from the city water bureau and hit him with the rumors of dihydrogen monoxide being detected in our local water supply. The rumor was emphatically denied!

I remember a parody of that sort from back when I was in high school in the early 1970's. That was back when there were pull-tabs on beer and soda cans and there was an UL about collecting them to fund dialysis. Pull-tabs are long gone, but the UL survives.

That sounds like more UL to me. I've never seen even one story, let alone one falling for the spoof, in any media.

There wasn't one on Snopes, either. But at

there is a story about a Jr.High student who won a science fair with a project of testing studentsfor their gullibility to this story. That page also includes oneversion of a report on the dangers of DHMO. An update included thisitem: :Update: In March 2004 the California municipality of Aliso Viejo :(a suburb in Orange County) came within a cat's whisker of falling for :this hoax after a paralegal there convinced city officials of the :danger posed by this chemical. The leg-pull got so far as a vote :having been scheduled for the City Council on a proposed law that :would have banned the use of foam containers at city-sponsored events :because (among other things) they were made with DHMO, a substance :that could "threaten human health and safety."

Penn and Teller did this on their Showtime show (Bull***t). They got people to sign a petition to ban dihydrogen monoxide and had several "spokespersons" for various enviro orgs endorsing their efforts. Would have been funny, if it wasn't so tragic.

scott

I use turps and candle wax mix. On my table saw and band saw. Haven't had any rust yet. My work shop is just a roof and three sides, at times it gets a bit damp in there.

I have a videoclip in which Senator John McCain accuses Karl Rove of dynamiting the Old Man in the Mountain in New Hampshire to revenge Bush's loss in the year 2000 primary.

I'm sure that spokesmen for environmental organizations enjoy a good joke as much as anyone else. Penn and Teller are famous.

They are also stage magicians, entertainers. Stage Magicians often use shills. Nothing wrong with that, but it should not be confused with reality.

So though I remain amused, I also remain unconvinced.

However, their showtime show is _not_ about magic, and _is_ about reality. No shills. The idiots were all real people (cherrypicked, perhaps, like Leno does, but real).

scott

I think you missed my point entirely.

The show is a show, it doesn't have to be about magic to take advantage of traditional magic methods. Uri Gellar's shows were not about magic either, that didn't stop him from using traditional magic methods either. I tend to think that Penn and Teller probably are more honest than Gellar but they are still in it for the money.

Supposing Penn or Teller stops you in the street and asks you to sign a petition to stop dihydrogen oxide. If you 'get it' you probably also realize that you won't get on TV unless you play along.

Faith healers work the same way.

I'm Kinda sorry I started this.

IOW, You are Ron Brogan and you DON'T approve that message? :)

Turn to Safety, Arch

Fortiter,