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ASTM C631-09

Current Revision

Standard Specification for Bonding Compounds for Interior Gypsum Plastering

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1.1 This specification covers minimum requirements for bonding compounds for adhering interior gypsum plaster to structurally sound surfaces.

1.2 This specification also covers test methods for determining performance requirements and physical properties.

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

1.4 The following safety hazards caveat pertains only to the test methods described in this specification: 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.

This specification covers the minimum requirements for bonding compounds used in adhering interior gypsum plasters to structurally sound surfaces. The bonding compound should be a tinted film-forming material suitable for application by brush, roller, and spray. It shall have a non-oxidizing, non-toxic, and non-flammable composition, and have a smooth, homogeneous, and flexible consistency with no settling of the solids. It shall also be free of foreign matter, and shall not be noticeably affected by mild acid or alkali. The apparatus needed for the preparation of the compound are moist cabinet, forced drift type oven, freezer, balance, timing device, tamper, steel straight edge, metal-bladed spatula, paint brush, briquet testing machine, briquet molds, divider, and clips. Specimens shall be sampled, tested, and conform accordingly to the following performance requirements: bonding capability; degradation; high temperature stability; freeze-thaw stability, and bond strength.


SDO ASTM: ASTM International
Document Number C631
Publication Date May 1, 2009
Language en - English
Page Count 5
Revision Level 09
Supercedes
Committee C11.02
Publish Date Document Id Type View
May 1, 2009 C0631-09 Revision
April 1, 2020 C0631-09R20 Reaffirmation
Sept. 1, 2014 C0631-09R14 Reaffirmation
Jan. 1, 2000 C0631-95AR00 Reaffirmation
Oct. 10, 1995 C0631-95AR04 Reaffirmation