2.2
GYPSUM BASE COAT PLASTER
[2.2.1
Gypsum Neat Plaster Base Coat
ASTM C 28/C 28M.
][2.2.2
Gypsum Ready-Mixed Plaster Base Coat
ASTM C 28/C 28M.
][2.2.3
Gypsum Wood-Fibered Plaster Base Coat
ASTM C 28/C 28M.
][2.2.4
High Strength Gypsum Plaster Base Coat
ASTM C 28/C 28M, gypsum neat plaster, except plaster shall have a
compressive strength of not less than 17.25 MPa 2,500 psi, when tested dry
in accordance with ASTM C 472.
]2.3
GYPSUM FINISH COAT PLASTER
[2.3.1
Gypsum Gaging Plaster Finish Coat
ASTM C 28/C 28M.
][2.3.2
High Strength Gypsum Gaging Plaster Finish Coat
**************************************************************************
NOTE: High strength gaging plaster, when blended
with finish lime-putty, produces a finish plaster
with controlled set, early hardness and strength,
and resistance to shrinkage cracks.
**************************************************************************
ASTM C 28/C 28M, gypsum gaging plaster, except plaster shall have a
compressive strength of not less than 31 MPa 4,500 psi when tested dry in
accordance with ASTM C 472.
][2.3.3
Gypsum Molding Plaster for Ornamental Plaster
ASTM C 59/C 59M.
][2.3.4
Keene's Cement Finish Coat
ASTM C 61/C 61M.
][2.3.5
Acoustical Plaster Finish Coat
**************************************************************************
NOTE: Selected type and grade of plaster to provide
the required acoustical characteristics. Acoustical
plaster is not recommended for use in places where
heavy abrasion and rough usage is expected.
**************************************************************************
ASTM E 1042 Type [I,] [II,] Class A, noncombustible.
SECTION 09210
Page 7
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