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ASTM C474-15(2020)

Historical Reaffirmation

Standard Test Methods for Joint Treatment Materials for Gypsum Board Construction

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1.1 These test methods cover the physical testing of joint compound, paper joint tape, glass-mesh joint tape, and an assembly of joint compound and paper joint tape.

1.1.1 Joint treatment materials are specified in Specification C475/C475M.

1.1.2 The joint treatment material described in this standard are for use with gypsum board installed in accordance with Specification C840.

1.2 The test methods appear in the following order:

 

Joint Compound Tests:

 

 

 

     Viscosity

5

 

 

     Shrinkage

6

 

 

     Check Cracking

7

 

 

     Putrefaction

8

 

 

Joint Tape Tests:

 

 

 

     Tensile Strength

9

 

 

     Width

10

 

 

     Thickness

11

 

 

Paper Joint Tape Tests:

 

 

 

     Dimensional Stability

12

 

 

Assemblages of Paper Joint Tape and Joint Compound:

 

 

 

     Bond of Paper Joint Tape to Joint Compound

15

 

 

     Cracking of Joint Compound at Tape Edges

14

 

 

Glass-Mesh Joint Tape Test:

 

 

 

     Skewness

13

 

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in brackets are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


These test methods cover the physical testing of joint treatment materials such as joint compound, paper joint tape, glass-mesh joint tape, and an assembly of joint compound and paper joint tape. These materials are used in gypsum board construction. The test methods are detailed for the following: joint compound testsfor viscosity, shrinkage, check cracking, and putrefaction; joint tape testsfor tensile strength, width, and thickness; paper joint tape testsfor dimensional stability; assemblages of paper joint tape and joint compoundfor bond of paper joint tape to joint compound and cracking of joint compound at tape edges; and glass-mesh joint tape testfor skewness.


SDO ASTM: ASTM International
Document Number C474
Publication Date June 1, 2020
Language en - English
Page Count 15
Revision Level 15(2020)
Supercedes
Committee C11.02
Publish Date Document Id Type View
June 1, 2015 C0474-15 Revision
May 1, 2013 C0474-13 Revision
Jan. 1, 2012 C0474-12 Revision
March 1, 2011 C0474-11 Revision
Jan. 1, 2005 C0474-05 Revision
Dec. 10, 2002 C0474-02 Revision
June 10, 2001 C0474-97 Revision
June 10, 2001 C0474-01 Revision
June 1, 2020 C0474-15R20 Reaffirmation