ASTM D5643-06
(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 SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 – 06
Standard Specification for
1
Coal Tar Roof Cement, Asbestos Free
This standard is issued under the fixed designation D5643; 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.
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 SI units are to be regarded as the
5. Performance Requirements
standard. The values given in parentheses are for information
only. 5.1 Uniformity—Athoroughly stirred sample shall show no
separation of solvent or settling that cannot be overcome by
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the moderate stirring after standing for 72 h at room temperature in
a closed container.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 5.2 Workability—The cement shall be of such a consistency
thatitwillspreadreadilyandpermittrowelingsmoothcoatings
bility of regulatory limitations prior to use.
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1.6 to 3.2 mm ( ⁄16 to ⁄8 in.) thick on vertical surfaces.
2. Referenced Documents
5.3 Behavior at 60°C (140°F)—The cement shall show no
2
2.1 ASTM Standards: evidence of blistering, and sag or slide shall be no greater than
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D4 Test Method for Bitumen Content 6mm( ⁄4 in.).
D95 Test Method for Water in Petroleum Products and 5.4 Adhesion to Wet Surfaces—Minimum average 75 %.
Bituminous Materials by Distillation 5.5 Flash Point—38°C (100°F) minimum.
D140 Practice for Sampling Bituminous Materials
6. Sampling
D3143 TestMethodforFlashPointofCutbackAsphaltwith
6.1 Sample the material from the original container imme-
Tag Open-Cup Apparatus
D3409 Test Method for Adhesion of Asphalt-Roof Cement diately after stirring to a uniform consistency, in accordance
to Damp, Wet, or Underwater Surfaces with Practice D140.
6.2 Restir the samples to obtain uniformity immediately
D6511 Test Methods for Solvent Bearing Bituminous Com-
pounds before withdrawing portions for individual tests.
7. Test Methods
3. Materials and Manufacture
3.1 Coal tar roof cement shall consist of a processed coal tar 7.1 Water—See Test Method D95.
7.2 Nonvolatile Matter—Determine nonvolatile matter in
base, volatile solvents, and mineral stabilizers, excluding
asbestos, mixed to a smooth uniform consistency suitable for accordance with Test Methods D6511, Section 7 (Nonvolatile
Content).
trowel application.
7.3 Insoluble Matter—See Test Method D4, Procedure No.
2.
1
This specification is under the jurisdiction of ASTM Committee D08 on
7.4 Behavior at 60°C (140°F)—See Test Methods D6511,
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.05
S
...
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.
´1
Designation:D5643–94 (Reapproved 2000) Designation: D 5643 – 06
Standard Specification for
1
Coal Tar Roof Cement, Asbestos Free
This standard is issued under the fixed designation D 5643; 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.
1
´ NOTE—Editorially switched from English dominant to SI dominant.
1. 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 SI units are to be regarded as the standard. The values given in parentheses are for information only.
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
2.1 ASTM Standards:
D4 Test Method for Bitumen Content
D95 Test Method for Water in Petroleum Products and Bituminuous Materials by Distillation
D 140 Practice for Sampling Bituminous Materials
2
D2822Specification for Asphalt Roof Cement Practice for Sampling Bituminous Materials
D 3143 Test Method for Flash Point of Cutback Asphalt with Tag Open-Cup Apparatus
2
D 3409 Test Method forAdhesion ofAsphalt-Roof Cement to Damp, Wet, or Underwater Surfaces Test Method forAdhesion
of Asphalt-Roof Cement to Damp, Wet, or Underwater Surfaces
D 6511 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.) thick on vertical surfaces.
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 6
1
mm ( ⁄4 in.).
5.4 Adhesion to Wet Surfaces—Minimum average 75 %.
5.5 Flash Point— 38°C (100°F) minimum.
6. Sampling
6.1 Sample the material from the original container immediately after stirring to a uniform consistency, in accordance with
Practice D 140.
1
This specification is under the jurisdiction ofASTM Committee D-8 D08 on Roofing, Waterproofing, Roofing and Bituminous MaterialsWaterproofing and is the direct
responsibility of Subcommittee D08.05 on Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing.
Current edition approved Dec. 15, 1994. Published February 1995.
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Current edition approved Dec. 1, 2006. Published December 2006.
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