ASTM C475/C475M-02(2007)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:C475/C475M −02(Reapproved 2007)
Standard Specification for
Joint Compound and Joint Tape for Finishing Gypsum
Board
This standard is issued under the fixed designation C475/C475M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D3382 Test Methods for Measurement of Energy and Inte-
grated Charge Transfer Due to Partial Discharges (Co-
1.1 This specification covers all-purpose, taping and finish-
rona) Using Bridge Techniques
ing joint compounds, paper joint tape and glass-mesh joint
F1615 Specification for Cautionary Labeling for Five-
tape.
Gallon Open-Head Plastic Containers
1.1.1 The joint materials used in this standard are designed
to be used with gypsum board installed in accordance with
3. Terminology
Specification C840.
3.1 Definitions—Definitions shall be in accordance with
1.2 This specification also covers the minimum require-
Terminology C11.
mentsforanassemblyoftapingandall-purposecompoundand
3.2 Definitions of Terms Specific to This Standard:
joint tape.
3.2.1 glass-mesh joint-tape, n—a strip of multidirectional
1.3 The text of this specification references notes and
glass yarn material designed to reinforce the joint between two
footnotes that provide explanatory material. These notes and
gypsum boards.
footnotes (excluding those in tables and figures) shall not be
3.2.2 joint tape, n—a strip of material used to conceal and
considered as requirements of the specification.
reinforce the joint between two gypsum boards.
1.4 The values stated in either inch-pound or SI (metric)
3.2.3 joint tape, self-adhering, n—a joint tape manufactured
units are to be regarded separately as standard. Within the text,
to adhere directly to the substrate.
theSIunitsareshowninparentheses.Thevaluesstatedineach
3.2.3.1 Discussion—Tapeshavingthisqualitydonotrequire
system shall be used independent of the other. Values from the
mechanical or embedment means of attachment to the sub-
two systems shall not be combined.
strate.
3.2.4 paper joint tape, n—a strip of paper reinforcing
2. Referenced Documents
materialdesignedtobeembeddedinthejointcompoundandto
2.1 ASTM Standards:
reinforce the joint between two gypsum boards.
C11 Terminology Relating to Gypsum and Related Building
3.2.5 skewness, n—as defined in Terminology D123.
Materials and Systems
C474 Test Methods for Joint Treatment Materials for Gyp-
4. Physical Properties
sum Board Construction
C840 SpecificationforApplicationandFinishingofGypsum
4.1 General—Thephysicalpropertiesshallbedeterminedin
Board
accordance with Test Methods C474, except as noted.
D123 Terminology Relating to Textiles
4.2 Joint Compounds.
4.2.1 Check Cracking—No cracks in the thinner half of the
wedge and no deep fissure cracks in the thicker half of the
This specification is under the jurisdiction of ASTM Committee C11 on
wedge.
Gypsum and Related Building Materials and Systems and is the direct responsibility
4.2.2 Putrefaction—No putrefaction in less than 4 days.
of Subcommittee C11.02 on Specifications and Test Methods for Accessories and
Related Products.
4.2.3 Shrinkage—Not more than 35 % by volume.
Current edition approved June 1, 2007. Published October 2007. Originally
4.3 Joint Tape—The following tests are required of all joint
approved in 1961. Last previous edition approved in 2002 as C475 – 02. DOI:
10.1520/C0475_C0475M-02R07.
tape:
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.3.1 Width—Shall be not less than 1 ⁄8 in. (48 mm) nor
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
more than 2 ⁄4 in. (60 mm). The width of an individual roll
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. shall vary not more than 6 ⁄32 in. (1 mm).
*A Summary of Changes section
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