A drywall panel is made of a paper liner wrapped around an inner core made primarily from gypsum plaster, the semi-hydrous form of calcium sulphate (CaSO4.½ H2O). The raw gypsum (mined or FGD) must be calcined before use. Flash calciners typically use natural gas today. The plaster is mixed with fiber (typically paper and/or fiberglass), foaming agent, various additives that increase mildew and fire resistance, and water and is then formed by sandwiching a core of wet gypsum between two sheets of heavy paper or fiberglass mats. When the core sets and is dried in a large drying chamber, the sandwich becomes rigid and strong enough for use as a building material. Drying chambers typically use natural gas today.
2007-11-28 10:49:16
·
answer #1
·
answered by Anonymous
·
1⤊
0⤋
Looks like Cata beat to the Wikipedia and best answer.
A drywall panel is made of a paper liner wrapped around an inner core made primarily from gypsum plaster, the semi-hydrous form of calcium sulphate (CaSO4.½ H2O). The raw gypsum (mined or FGD) must be calcined before use. Flash calciners typically use natural gas today. The plaster is mixed with fiber (typically paper and/or fiberglass), foaming agent, various additives that increase mildew and fire resistance, and water and is then formed by sandwiching a core of wet gypsum between two sheets of heavy paper or fiberglass mats. When the core sets and is dried in a large drying chamber, the sandwich becomes rigid and strong enough for use as a building material. Drying chambers typically use natural gas today.
2007-11-28 10:55:44
·
answer #2
·
answered by Parercut Faint 7
·
2⤊
0⤋
What Is Sheetrock Made Of
2016-11-01 09:14:16
·
answer #3
·
answered by ? 4
·
0⤊
0⤋
Mainly gypsum. The core is like plaster of paris between to sheets of thick paper. I'm sure they add all sorts of modifying chemicals to give it desirable properties like stiffness, water resistance, mold resistance, etc.
2007-11-28 10:49:18
·
answer #4
·
answered by Jon R 3
·
0⤊
0⤋
Pulverized chalk
2007-11-28 10:46:55
·
answer #5
·
answered by Lem 2
·
0⤊
0⤋
I believe plaster and insulation material
2007-11-28 10:47:14
·
answer #6
·
answered by Anonymous
·
0⤊
0⤋
Gypsum (Plaster), cardboard and glue.
2007-11-28 10:46:53
·
answer #7
·
answered by Anonymous
·
0⤊
0⤋
Paper and gypsum.
2007-11-28 10:46:52
·
answer #8
·
answered by jimmy55 1
·
0⤊
0⤋
it is made out of crushed insect killers cause insects ROCK!
2014-01-22 16:21:56
·
answer #9
·
answered by Sugi 1
·
0⤊
0⤋
calcium and lime
2007-11-28 10:47:01
·
answer #10
·
answered by Wouldn't you like to know... 2
·
0⤊
0⤋