ASTM-C474 Standard Test Methods for Joint Treatment Materials for Gypsum Board Construction

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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, and an assembly of joint compound and paper joint tape.

1.1.1 Joint treatment materials are specified in Specification C 475.

1.2 The test methods appear in the following order:

Joint Compound Tests:
Viscosity 5
Shrinkage 6
Check Cracking 7
Putrefaction 8
Paper Joint Tape Tests:
Tensile Strength 9
Dimensional Stability 10
Width 11
Thickness 12
Assemblages of Paper Joint Tape and Joint Compound:
Bond of Paper Joint Tape to Joint Compound 13
Cracking of Joint Compound at Tape Edges 14

1.3 The values stated in inch-pound units are to be regarded as the standard. The SI (metric) values given in parentheses are approximate and are provided for information purposes only.

1.4 The text of this standard references notes and footnotes which 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 and health practices and determine the applicability of regulatory limitations prior to use.


bond of tape; cracking; joint compound; joint tape; joint treatment; putrefaction; shrinkage; tensile strength; topping compound; viscosity; ICS Number Code 91.060.10 (Walls. Partitions. Facades); 91.100.10 (Cement. Gypsum. Lime. Mortar)

To find similar documents by ASTM Volume:

04.01 (Cement; Lime; Gypsum)

To find similar documents by classification:

91.060.10 (Walls. Partitions. Façades)

91.100.10 (Cement. Gypsum. Lime. Mortar)

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Document Number


Revision Level

2015 R20 EDITION



Modification Type


Publication Date

July 1, 2020

Document Type

Test Method

Page Count

15 pages

Committee Number