ASTM D5643/D5643M-06(2012)e1
(Specification)Standard Specification for Coal Tar Roof Cement, Asbestos Free
Standard Specification for Coal Tar Roof Cement, Asbestos Free
ABSTRACT
This specification covers coal tar roof cement suitable for trowel application in coal tar roofing and flashing systems. The chemical composition of coal tar roof cement shall conform to the requirements prescribed. The water, non-volatile matter, insoluble matter, behaviour at 60 deg. C, adhesion to wet surfaces, and flash point shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers coal tar roof cement suitable for trowel application in coal tar roofing and flashing systems.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D5643/D5643M −06 (Reapproved 2012)
Standard Specification for
Coal Tar Roof Cement, Asbestos Free
This standard is issued under the fixed designation D5643/D5643M; 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 (´) indicates an editorial change since the last revision or reapproval.
´ NOTE—Units information was editorially corrected in June 2012.
1. Scope 4. Chemical Composition
1.1 This specification covers coal tar roof cement suitable
4.1 The composition of coal tar roof cement shall conform
for trowel application in coal tar roofing and flashing systems.
to the requirements prescribed in Table 1.
1.2 The values stated in either SI units or inch-pound units
5. Performance Requirements
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each
5.1 Uniformity—A thoroughly stirred sample shall show no
system shall be used independently of the other. Combining
separation of solvent or settling that cannot be overcome by
values from the two systems may result in non-conformance
moderate stirring after standing for 72 h at room temperature in
with the standard.
a closed container.
1.3 This standard does not purport to address all of the
5.2 Workability—The cement shall be of such a consistency
safety concerns, if any, associated with its use. It is the
thatitwillspreadreadilyandpermittrowelingsmoothcoatings
responsibility of the user of this standard to establish appro-
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1.6 to 3.2 mm [ ⁄16 to ⁄8 in.] thick on vertical surfaces.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 5.3 Behavior at 60°C [140°F]—The cement shall show no
evidence of blistering, and sag or slide shall be no greater than
2. Referenced Documents
6mm[ ⁄4 in.].
2.1 ASTM Standards:
5.4 Adhesion to Wet Surfaces—Minimum average 75 %.
D4 Test Method for Bitumen Content
D95 Test Method for Water in Petroleum Products and
5.5 Flash Point—38°C [100°F] minimum.
Bituminous Materials by Distillation
D140 Practice for Sampling Bituminous Materials
6. Sampling
D3143 Test Method for Flash Point of CutbackAsphalt with
6.1 Sample the material from the original container imme-
Tag Open-Cup Apparatus
diately after stirring to a uniform consistency, in accordance
D3409 Test Method for Adhesion of Asphalt-Roof Cement
with Practice D140.
to Damp, Wet, or Underwater Surfaces
D6511 Test Methods for Solvent Bearing Bituminous Com-
6.2 Restir the samples to obtain uniformity immediately
pounds
before withdrawing portions for individual tests.
3. Materials and Manufacture
7. Test Methods
3.1 Coal tar roof cement shall consist of a processed coal tar
7.1 Water—See Test Method D95.
base, volatile solvents, and mineral stabilizers, excluding
asbestos, mixed to a smooth uniform consistency suitable for
7.2 Nonvolatile Matter—Determine nonvolatile matter in
trowel application.
accordance with Test Methods D6511, Section 7 (Nonvolatile
Content).
This specification is under the jurisdiction of ASTM Committee D08 on
7.3 Insoluble Matter—See Test Method D4, Procedure No.
Roofing and Waterproofing and is the direct responsibilit
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This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
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Designation:D5643–06 Designation: D5643/D5643M – 06 (Reapproved 2012)
Standard Specification for
Coal Tar Roof Cement, Asbestos Free
This standard is issued under the fixed designation D5643/D5643M; 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 (´) indicates an editorial change since the last revision or reapproval.
´ NOTE—Units information was editorially corrected in June 2012.
1. Scope
1.1 This specification covers coal tar roof cement suitable for trowel application in coal tar roofing and flashing systems.
1.2The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D4 Test Method for Bitumen Content
D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation
D140 Practice for Sampling Bituminous Materials
D3143 Test Method for Flash Point of Cutback Asphalt with Tag Open-Cup Apparatus
D3409 Test Method for Adhesion of Asphalt-Roof Cement to Damp, Wet, or Underwater Surfaces
D6511 Test Methods for Solvent Bearing Bituminous Compounds
3. Materials and Manufacture
3.1 Coal tar roof cement shall consist of a processed coal tar base, volatile solvents, and mineral stabilizers, excluding asbestos,
mixed to a smooth uniform consistency suitable for trowel application.
4. Chemical Composition
4.1 The composition of coal tar roof cement shall conform to the requirements prescribed in Table 1.
5. Performance Requirements
5.1 Uniformity—A thoroughly stirred sample shall show no separation of solvent or settling that cannot be overcome by
moderate stirring after standing for 72 h at room temperature in a closed container.
5.2 Workability—The cement shall be of such a consistency that it will spread readily and permit troweling smooth coatings
1 1
1.6 to 3.2 mm ([ ⁄16 to ⁄8 in.)in.] thick on vertical surfaces.
5.3 Behavior at 60°C (140°F)[140°F]—The cement shall show no evidence of blistering, and sag or slide shall be no greater
than6mm([ ⁄4 in.). in.].
5.4 Adhesion to Wet Surfaces—Minimum average 75 %.
5.5 Flash Point—38°C (100°F) minimum. —38°C [100°F] minimum.
This specification is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.05 on
Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing.
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Current edition approved Dec. 1, 2006. Published December 2006. Originally approved in 1994. Last previous edition approved in 2000 as D5643–94 (2000) . DOI:
10.1520/D5643-06.
Current edition approved May 1, 2012. Published June 2012. Originally approv
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