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Gypsum Plaster

MasterFormat 09 23 00 Gypsum Plastering

This information reflects our best understanding of product composition in 2023.

Gypsum plaster is a combination of calcium sulfate hemihydrate, a mineral aggregate, and and additives. This Common Product describes gypsum plaster that is mixed on-site with potable water and applied to interior laths or masonry plaster bases....

More about Gypsum Plaster

Gypsum plaster is a combination of calcium sulfate hemihydrate, a mineral aggregate, and and additives. This Common Product describes gypsum plaster that is mixed on-site with potable water and applied to interior laths or masonry plaster bases. Gypsum plastering typically requires one or two base coats when applied to a gypsum lath followed by a finish coat. This CP describes gypsum plaster containing the mineral aggregate perlite. Perlite provides fire resistance and is lighter in weight than other commonly used aggregates but lowers the plaster's compressive strength. Additional additives include accelerators such as potassium sulfate and lime, which is frequently added to reduce the rate at which gypsum cures by absorbing carbon dioxide. Standards related to this CP include ASTM C28, covering various gypsum plasters, and ASTM C35, which covers inorganic aggregates used in gypsum plaster such as perlite, sand, and vermiculite.

Name % Weight Whole Function GREENSCREEN® Sources
Calcium sulfate hemihydrate
10034-76-1
72.42% Filler Subscribe to view
PERLITE
93763-70-3
12.78% Aggregate Subscribe to view
Quartz
14808-60-7
1.07% Impurity Subscribe to view
Lime
1305-78-8
0.09% Plasticizer, Strengthener, Water Resistance Subscribe to view
Potassium sulfate
7778-80-5
0.04% Accelerator Subscribe to view
Lead
7439-92-1
<0.01% Residual Subscribe to view
Copper
7440-50-8
<0.01% Residual Subscribe to view
Antimony, elemental
7440-36-0
<0.01% Residual Subscribe to view
Chromium
7440-47-3
<0.01% Residual Subscribe to view
Nickel
7440-02-0
<0.01% Residual Subscribe to view
Arsenic
7440-38-2
<0.01% Residual Subscribe to view
Cobalt
7440-48-4
<0.01% Residual Subscribe to view
Uranium
7440-61-1
<0.01% Residual Subscribe to view
CADMIUM
7440-43-9
<0.01% Residual Subscribe to view
THALLIUM
7440-28-0
<0.01% Residual Subscribe to view
Beryllium, elemental
7440-41-7
<0.01% Residual Subscribe to view
MERCURY
7439-97-6
<0.01% Residual Subscribe to view
Calcium sulfate hemihydrate
10034-76-1
11.38% Filler Subscribe to view
Lime
1305-78-8
1.36% Plasticizer, Strengthener, Water Resistance Subscribe to view
PERLITE
93763-70-3
0.68% Aggregate Subscribe to view
Quartz
14808-60-7
0.18% Impurity Subscribe to view
Lead
7439-92-1
<0.01% Residual Subscribe to view
Copper
7440-50-8
<0.01% Residual Subscribe to view
Antimony, elemental
7440-36-0
<0.01% Residual Subscribe to view
Chromium
7440-47-3
<0.01% Residual Subscribe to view
Nickel
7440-02-0
<0.01% Residual Subscribe to view
Arsenic
7440-38-2
<0.01% Residual Subscribe to view
Cobalt
7440-48-4
<0.01% Residual Subscribe to view
Uranium
7440-61-1
<0.01% Residual Subscribe to view
CADMIUM
7440-43-9
<0.01% Residual Subscribe to view
THALLIUM
7440-28-0
<0.01% Residual Subscribe to view
Beryllium, elemental
7440-41-7
<0.01% Residual Subscribe to view
MERCURY
7439-97-6
<0.01% Residual Subscribe to view
Name % Weight Part % Weight Whole Function GREENSCREEN® Sources
Gypsum Plastering Base Coat
86.40% 86.40% Coating Subscribe to view
Calcium sulfate hemihydrate
10034-76-1
(Nested within Gypsum Plastering Base Coat)
83.82% 72.42% Filler Subscribe to view
PERLITE
93763-70-3
(Nested within Gypsum Plastering Base Coat)
14.79% 12.78% Aggregate Subscribe to view
Quartz
14808-60-7
(Nested within Gypsum Plastering Base Coat)
1.23% 1.07% Impurity Subscribe to view
Lime
1305-78-8
(Nested within Gypsum Plastering Base Coat)
0.10% 0.09% Plasticizer, Strengthener, Water Resistance Subscribe to view
Potassium sulfate
7778-80-5
(Nested within Gypsum Plastering Base Coat)
0.05% 0.04% Accelerator Subscribe to view
Trace Elements in Unprocessed Natural Gypsum
(Nested within Gypsum Plastering Base Coat)
<0.01% <0.01% Residual Subscribe to view
Lead
7439-92-1
(Nested within Trace Elements in Unprocessed Natural Gypsum)
33.38% <0.01% Residual Subscribe to view
Copper
7440-50-8
(Nested within Trace Elements in Unprocessed Natural Gypsum)
20.32% <0.01% Residual Subscribe to view
Antimony, elemental
7440-36-0
(Nested within Trace Elements in Unprocessed Natural Gypsum)
17.13% <0.01% Residual Subscribe to view
Chromium
7440-47-3
(Nested within Trace Elements in Unprocessed Natural Gypsum)
9.87% <0.01% Residual Subscribe to view
Nickel
7440-02-0
(Nested within Trace Elements in Unprocessed Natural Gypsum)
7.47% <0.01% Residual Subscribe to view
Arsenic
7440-38-2
(Nested within Trace Elements in Unprocessed Natural Gypsum)
4.50% <0.01% Residual Subscribe to view
Cobalt
7440-48-4
(Nested within Trace Elements in Unprocessed Natural Gypsum)
3.85% <0.01% Residual Subscribe to view
Uranium
7440-61-1
(Nested within Trace Elements in Unprocessed Natural Gypsum)
1.79% <0.01% Residual Subscribe to view
CADMIUM
7440-43-9
(Nested within Trace Elements in Unprocessed Natural Gypsum)
0.89% <0.01% Residual Subscribe to view
THALLIUM
7440-28-0
(Nested within Trace Elements in Unprocessed Natural Gypsum)
0.36% <0.01% Residual Subscribe to view
Beryllium, elemental
7440-41-7
(Nested within Trace Elements in Unprocessed Natural Gypsum)
0.30% <0.01% Residual Subscribe to view
MERCURY
7439-97-6
(Nested within Trace Elements in Unprocessed Natural Gypsum)
0.15% <0.01% Residual Subscribe to view
Gypsum Plastering Finish Coat
13.60% 13.60% Coating Subscribe to view
Calcium sulfate hemihydrate
10034-76-1
(Nested within Gypsum Plastering Finish Coat)
83.70% 11.38% Filler Subscribe to view
Lime
1305-78-8
(Nested within Gypsum Plastering Finish Coat)
10.00% 1.36% Plasticizer, Strengthener, Water Resistance Subscribe to view
PERLITE
93763-70-3
(Nested within Gypsum Plastering Finish Coat)
5.00% 0.68% Aggregate Subscribe to view
Quartz
14808-60-7
(Nested within Gypsum Plastering Finish Coat)
1.30% 0.18% Impurity Subscribe to view
Trace Elements in Unprocessed Natural Gypsum
(Nested within Gypsum Plastering Finish Coat)
<0.01% <0.01% Residual Subscribe to view
Lead
7439-92-1
(Nested within Trace Elements in Unprocessed Natural Gypsum)
33.38% <0.01% Residual Subscribe to view
Copper
7440-50-8
(Nested within Trace Elements in Unprocessed Natural Gypsum)
20.32% <0.01% Residual Subscribe to view
Antimony, elemental
7440-36-0
(Nested within Trace Elements in Unprocessed Natural Gypsum)
17.13% <0.01% Residual Subscribe to view
Chromium
7440-47-3
(Nested within Trace Elements in Unprocessed Natural Gypsum)
9.87% <0.01% Residual Subscribe to view
Nickel
7440-02-0
(Nested within Trace Elements in Unprocessed Natural Gypsum)
7.47% <0.01% Residual Subscribe to view
Arsenic
7440-38-2
(Nested within Trace Elements in Unprocessed Natural Gypsum)
4.50% <0.01% Residual Subscribe to view
Cobalt
7440-48-4
(Nested within Trace Elements in Unprocessed Natural Gypsum)
3.85% <0.01% Residual Subscribe to view
Uranium
7440-61-1
(Nested within Trace Elements in Unprocessed Natural Gypsum)
1.79% <0.01% Residual Subscribe to view
CADMIUM
7440-43-9
(Nested within Trace Elements in Unprocessed Natural Gypsum)
0.89% <0.01% Residual Subscribe to view
THALLIUM
7440-28-0
(Nested within Trace Elements in Unprocessed Natural Gypsum)
0.36% <0.01% Residual Subscribe to view
Beryllium, elemental
7440-41-7
(Nested within Trace Elements in Unprocessed Natural Gypsum)
0.30% <0.01% Residual Subscribe to view
MERCURY
7439-97-6
(Nested within Trace Elements in Unprocessed Natural Gypsum)
0.15% <0.01% Residual Subscribe to view

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Known or Potential Residuals

Known or Potential Residuals for Chemical
CASRN NAME GREENSCREEN® TYPE FREQUENCY % Weight Chemical % Weight Product SOURCE
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Other Process Chemicals

Other Process Chemicals for Chemical
CASRN NAME GREENSCREEN® TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCES
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Habitable Resources (0)

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Sources

Sources for Common Product Data
Source Uploaded Document Linked Document
Brochure - Gypsum Wallboard Chemical Additives
Brochure - Lathing & Plastering
Brochure - Perlite Plaster
Brochure - Plaster Resource Manual
Journal - The setting of gypsum plaster
Lewry 2004 - The setting of gypsum plaster
Patent - CN105669147A
Patent - US1967959A
Patent - US2216555A
Report - Gypsum Statistics and Information
SDS - Carlite Finish
SDS - Gyproc Elite 100
SDS - Gypsolite Plaster
SDS - INTOUNO F
SDS - Methocel 228S
SDS - NIDA FLAM
SDS - RED TOP BRAND FINISH PLASTER
SDS - RED TOP BRAND GYPSUM PLASTER
SDS - ROFIX 190
SDS - Super-White Gauging Plaster Quick Set
SDS - TITAN ONE BAG HARDWALL PLASTER
SDS - USG Gypsum Additives
SDS - USG GYPSUM PLASTER RETARDERS
Specs - Gypsum Plastering
Standard - ASTM C28
Standard - ASTM C35
Standard - Chapter 25 Gypsum Board and Plaster
TDS - Carlite Finish
TDS - Gyproc Elite 100
TDS - Gypsolite Plaster
TDS - INTOUNO F
TDS - RED TOP BRAND FINISH PLASTER
TDS - RED TOP BRAND GYPSUM PLASTER
TDS - ROFIX 190
TDS - Super-White Gauging Plaster Quick Set
TDS - USG Gypsum Additives
TDS - USG GYPSUM PLASTER RETARDERS
Website - Perlite Cement-based Lightweight Insulating Plasters
Website - plaster finishes
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