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#11
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On Thu, 17 Feb 2005 08:16:21 -0500, Corky Scott
wrote: On Wed, 16 Feb 2005 13:19:39 -0600, "James M. Knox" wrote: Stealth Pilot wrote in m: to get a smooth outer layer I used a paste of resin and johnsons baby powder (talc) and squeegee'd this on to fill the weave but not much more than that. Run that one by me one more time? I haven't heard of this trick. Most people use something like microballoons mixed with the resin to create a sandable finish. Corky Scott thats it. 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. Stealth Pilot |
#12
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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. |
#13
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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. |
#14
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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. |
#15
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"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 |
#16
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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. |
#17
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"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 |
#18
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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 |
#19
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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. |
#20
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"George Patterson" wrote You *do* realize that we are talking about joint compound, not sheet rock? George Patterson Uhh, no. *That* could be the explanation! Somewhere I missed that. -- Jim in NC |
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