ASTM D2824-04

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D 2824 – 04
Standard Specification for
Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered,
1
Asbestos Fibered, and Fibered without Asbestos
This standard is issued under the fixed designation D 2824; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope of aluminum pigment conforming to the requirements of
Specification D 962, with or without fiber added.They shall be
1.1 This specification covers asphalt-based, aluminum roof
mixed to a smooth, uniform consistency suitable for applica-
coatings suitable for application to roofing or masonry surfaces
tion by brush, roller, or by spraying.
by brush or spray.
1.2 The values stated in SI units are to be regarded as the
5. Composition
standard. The values in parentheses are for information only.
5.1 Asphalt-based, aluminum roof coatings complying with
1.3 The following precautionary caveat pertains only to the
this specification shall conform to the following composition
test method portion, Section 8, of this specification: This
limits:
standard does not purport to address all of the safety concerns,
Type I Type II or
if any, associated with its use. It is the responsibility of the user
Type III
of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita- Water, max, % 0.3 0.3
Nonvolatile matter (NVM), min, % 40 40
tions prior to use.
Insoluble in CS , max, % of NVM 40 50
2
Metallic aluminum, min, % 11 9
2. Referenced Documents
2
6. Physical Requirements
2.1 ASTM Standards:
D 962 Specification for Aluminum Powder and Paste Pig-
6.1 Uniformity—After a thoroughly stirred sample has
ments for Paints
stood for 72 h at room temperature 23 6 2°C (73.4 6 °F) in a
D 4798 Test Method for Accelerated Weathering Test Con-
closed container, it shall show no separation of solvent or
ditions and Procedures for Bituminous Materials (Xenon-
settling that can not be overcome by moderate stirring.
Arc Method)
6.2 Consistency—The roof coating shall be of a consistency
D 6511 Test Methods for Solvent Bearing Bituminous
that will spread readily and permit application by brush, roller,
Compounds
orspraytoproduceafilminwhichthealuminumpigmentleafs
to form a bright reflective surface on prepared roofing, satu-
3. Classification
rated felt, and metal surfaces at ambient temperatures above
3.1 Type I—Nonfibered, containing no fiber.
10°C (50°F).
3.2 Type II—Fibered, containing asbestos fiber.
6.2.1 Type I—Consistency at 25°C (77°F) shall be between
3.3 Type III—Fibered, containing no asbestos fiber.
20 and 30 Stormer s/100 revolutions of the paddle-type rotor
with a 100-g load in addition to the standardizing load.
4. Materials and Manufacture
6.2.2 Type II and Type III—Consistency at 25°C (77°F)
4.1 Asphalt-based, aluminum roof coatings shall consist of
shall be between 15 and 90 Stormer s/100 revolutions of the
an asphalt base, volatile petroleum solvents, and a leafing type
propeller-type rotor with a 300-g load in addition to the
standardizing load.
6.3 Reflectance—The percent initial lu
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