ASTM C1635-22
(Test Method)Standard Test Method to Evaluate Adhesion/Cohesion Properties of a Sealant at Fixed Extension
Standard Test Method to Evaluate Adhesion/Cohesion Properties of a Sealant at Fixed Extension
SIGNIFICANCE AND USE
5.1 In any sealant application, the sealant must be capable of maintaining an adhesive bond to the substrate when held in strain for its intended service life.
5.2 This test method is an indicator of a sealant’s ability to adhere under strain to a given substrate.
5.3 The default test strain is the movement ability (Class in accordance with Specification C920) of the sealant as designated by the manufacturer. The default joint configuration is 12.7 mm by 12.7 mm by 50.8 mm (1/2 in. by 1/2 in. by 2 in.). Other strains and joint configurations may be used and reported as noted in Section 8 and Table 1.
SCOPE
1.1 This test method describes a laboratory procedure for measuring the adhesion/cohesion properties of a sealant when subjected to tensile loads resulting from an applied specified strain. The adhesion/cohesion properties are evaluated before, during, and after water immersion.
1.2 This test method examines the adhesive and cohesive performance of a sealant on a specified substrate at a strain equivalent to a multiple of the strain/movement capability (Class in accordance with Specification C920) designated by the manufacturer for the given sealant in accordance with Specification C920.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.4 Comparable Tests—Other comparable tests are ISO 10590 and 8340.
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.
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Standards Content (Sample)
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.
Designation: C1635 − 22
Standard Test Method to
Evaluate Adhesion/Cohesion Properties of a Sealant at
1
Fixed Extension
This standard is issued under the fixed designation C1635; 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 C719 Test Method for Adhesion and Cohesion of Elasto-
meric Joint Sealants Under Cyclic Movement (Hockman
1.1 This test method describes a laboratory procedure for
Cycle)
measuring the adhesion/cohesion properties of a sealant when
C920 Specification for Elastomeric Joint Sealants
subjected to tensile loads resulting from an applied specified
C1375 Guide for Substrates Used in Testing Building Seals
strain. The adhesion/cohesion properties are evaluated before,
and Sealants
during, and after water immersion.
3
2.2 ISO Standards:
1.2 This test method examines the adhesive and cohesive
ISO 8340 Building construction — Sealants — Determina-
performance of a sealant on a specified substrate at a strain
tion of tensile properties at maintained extension
equivalent to a multiple of the strain/movement capability
ISO 10590 Building construction — Sealants — Determina-
(Class in accordance with Specification C920) designated by
tion of tensile properties of sealants at maintained exten-
the manufacturer for the given sealant in accordance with
sion after immersion in water
Specification C920.
1.3 The values stated in SI units are to be regarded as
3. Terminology
standard. The values given in parentheses after SI units are
3.1 Definitions—Refer to Terminology C717 for definitions
provided for information only and are not considered standard.
of terms used in this standard, including but not limited to the
1.4 Comparable Tests—Other comparable tests are ISO
following: adhesive failure, casting spacers, cohesive failure,
10590 and 8340.
standard conditions.
1.5 This standard does not purport to address all of the
3.2 separators—the device or item used to maintain the
safety concerns, if any, associated with its use. It is the
specimens at fixed extension.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Summary of Test Method
mine the applicability of regulatory limitations prior to use.
4.1 Test specimens made in accordance with dimensions set
1.6 This international standard was developed in accor-
forth in Test Method C719 are fabricated and allowed to cure.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4.2 Test specimens are extended at standard conditions as
Development of International Standards, Guides and Recom-
defined in Terminology C717 to a specified strain and blocked
mendations issued by the World Trade Organization Technical
at the strain for a specified period of time.
Barriers to Trade (TBT) Committee.
4.3 The test specimens are examined for adhesive or cohe-
sive failure, or both, of the sealant at 0, 24 and 168 h.
2. Referenced Documents
2
2.1 ASTM Standards: 4.4 A duplicate set of three test specimens are cured at
standard conditions as defined in Terminology C717, extended
C717 Terminology of Building Seals and Sealants
to a specified strain, and then immersed (totally) in deionized
water or specified medium (3 specimens/liter of liquid).
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.30 on
4.5 Immersed test specimens are observed at 0, 24 and 168
Adhesion
and other additional specified hours.
CurrenteditionapprovedJune1,2022.PublishedJuly2022.Originallyapproved
in2006.Lastpreviouseditionapprovedin2016asC1635-16.DOI:10.1520/C1635-
22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from International Organization for Standardization (ISO), ISO
Standards volume information, refer to the standard’s Document Summary page on Central Secretariat, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva,
the ASTM website. Switzerland, https://www.iso.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C1635 − 22
4.6 This test method uses ASTM standard substrates as 7.1.1 Cleanthesubstratesinaccordancewiththeprocedures
described in Guide C1375. This t
...
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.
Designation: C1635 − 16 C1635 − 22
Standard Test Method to
Evaluate Adhesion/Cohesion Properties of a Sealant at
1
Fixed Extension
This standard is issued under the fixed designation C1635; 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
1.1 This test method describes a laboratory procedure for measuring the adhesion/cohesion properties of a sealant when subjected
to tensile loads resulting from an applied specified strain. The adhesion/cohesion properties are evaluated before, during, and after
water immersion.
1.2 This test method examines the adhesive and cohesive performance of a sealant on a specified substrate at a strain equivalent
to a multiple of the strain/movement capability (Class in accordance with Specification C920) designated by the manufacturer for
the given sealant per in accordance with Specification C920.
1.3 The values stated in SI (metric) units are to be regarded as the standard. The inch values given in parentheses are for
information only.after SI units are provided for information only and are not considered standard.
1.4 Comparable Tests—Other comparable tests are ISO 10590 and 8340.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 Comparable Test:
1.5.1 ISO 10590, Building construction - Jointing products - Sealants - Determination of adhesion/cohesion properties at
maintained extension after immersion in water
1.5.2 ISO 8340, Building construction - Jointing products - Sealants - Determination of tensile properties at maintained extension
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.
2. Referenced Documents
2
2.1 ASTM Standards:
1
This test method is under the jurisdiction of ASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.30 on Adhesion
Current edition approved June 1, 2016June 1, 2022. Published July 2016July 2022. Originally approved in 2006. Last previous edition approved in 20142016 as
C1635-14.-16. DOI: 10.1520/C1635-16.10.1520/C1635-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C1635 − 22
C717 Terminology of Building Seals and Sealants
C719 Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle)
C920 Specification for Elastomeric Joint Sealants
C1375 Guide for Substrates Used in Testing Building Seals and Sealants
3
2.2 ISO Standards:
ISO 8340 Building construction — Sealants — Determination of tensile properties at maintained extension
ISO 10590 Building construction — Sealants — Determination of tensile properties of sealants at maintained extension after
immersion in water
3. Terminology
3.1 Definitions—Refer to Terminology C717 for definitions of terms used in this standard, including but not limited to the
following: adhesive failure, casting spacers, cohesive failure, standard conditions.
3.2 separators—the device or item used to maintain the specimens at fixed extension.
4. Summary of Test Method
4.1 Test specimens made in accordance with dimensions set forth in Test Method C719 are fabricated and allowed to cure.
4.2 Test specimens are extended at standard conditions as defined in Terminology C717 to a specified strain and blocked at the
strain for a specified period of time.
4.3 The test specimens are examined for adhesive or cohesive failure, or both, of the sealant at 0, 24 and 168 h.
4.4 A duplicate set of three test specimens are cured at standard conditions as define
...
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