Archer Cowl needs work - Advice?

Stealth Pilot wrote:

I just checked the ingredients to the baby powder.
talc, fragrance.

sometimes I just do it for the fragrance :-)
smells great while sanding it back.

Wear a dust mask. They took talc out of sheet rock compound because of health
concerns over people breathing the dust.

George Patterson
He who tries to carry a cat by the tail learns something he can learn in
no other way.

George Patterson wrote:

Wear a dust mask. They took talc out of sheet rock compound because of health
concerns over people breathing the dust.

They still put talc in drywall. What they are careful now about is making
sure it's not contaminated with asbestos (much mined talc contains it).

NIOSH recommends a mask anyhow. Just about any of the silicate's dust
is bad to breath in quantity.

Gene Kearns wrote:

I thought drywall was principally gypsum and quartz.....

Drywall is gypsum plaster between two layers of thick paper. The
taping/finishing compound is something else. Just read the label on the USG
stuff I use. Limestone, water, talc (Ron's right, as usual), mica, and vinyl
acetate polymer.

The reason I thought the talc had been removed is that in the mid-80s the cans
used to have a warning label that the compound contained talc. The label
disappeared in the 90s, so I thought the talc was gone too.

George Patterson
He who tries to carry a cat by the tail learns something he can learn in
no other way.

"George Patterson" wrote

Drywall is gypsum plaster between two layers of thick paper. The
taping/finishing compound is something else. Just read the label on the
USG
stuff I use. Limestone, water, talc (Ron's right, as usual), mica, and
vinyl
acetate polymer.

It is primarily gypsum, with very small percentages of the other stuff.
--
Jim in NC

Morgans wrote:

"George Patterson" wrote

Drywall is gypsum plaster between two layers of thick paper. The
taping/finishing compound is something else. Just read the label on the
USG
stuff I use. Limestone, water, talc (Ron's right, as usual), mica, and
vinyl
acetate polymer.

It is primarily gypsum, with very small percentages of the other stuff.

Then it's interesting that gypsum does not appear in the ingredients list.

George Patterson
He who tries to carry a cat by the tail learns something he can learn in
no other way.

"George Patterson" wrote

Then it's interesting that gypsum does not appear in the ingredients list.

George Patterson

That *is*interesting, since I have been to a plant where the stuff is mined,
separated from the rock, and baked, mixed and formed into the sheetrock. I
have no explanation.
--
Jim in NC

Morgans wrote:


"George Patterson" wrote

Then it's interesting that gypsum does not appear in the ingredients
list.

George Patterson

That *is*interesting, since I have been to a plant where the stuff is
mined,
separated from the rock, and baked, mixed and formed into the sheetrock.
I have no explanation.


Isn't gypsum = to limestone, water and talc ?
John

Morgans wrote:

"George Patterson" wrote

Then it's interesting that gypsum does not appear in the ingredients list.

George Patterson

That *is*interesting, since I have been to a plant where the stuff is mined,
separated from the rock, and baked, mixed and formed into the sheetrock. I
have no explanation.

You *do* realize that we are talking about joint compound, not sheet rock?

George Patterson
He who tries to carry a cat by the tail learns something he can learn in
no other way.

UltraJohn wrote:

Isn't gypsum = to limestone, water and talc ?

No. http://www.minerals.net/mineral/sulf...sum/gypsum.htm

George Patterson
He who tries to carry a cat by the tail learns something he can learn in
no other way.

UltraJohn wrote:

Isn't gypsum = to limestone, water and talc ?

No. http://www.minerals.net/mineral/sulf...sum/gypsum.htm

George Patterson
He who tries to carry a cat by the tail learns something he can learn in
no other way.