ASTM C1635-16

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 of the sealant as designated by the manufacturer. The default joint configuration is 12.7 × 12.7 × 50.8 mm (1/2 × 1/2 × 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 designated by the manufacturer for the given sealant per 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.  
1.4 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.  
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

General Information

• Status: Historical
• Publication Date: 31-May-2016
• ICS: 21.140 - Seals, glands
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.30 - Adhesion

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C1635 − 16
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.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope meric Joint Sealants Under Cyclic Movement (Hockman
Cycle)
1.1 This test method describes a laboratory procedure for
C920Specification for Elastomeric Joint Sealants
measuring the adhesion/cohesion properties of a sealant when
C1375Guide for Substrates Used in Testing Building Seals
subjected to tensile loads resulting from an applied specified
and Sealants
strain. The adhesion/cohesion properties are evaluated before,
during, and after water immersion.
3. Terminology
1.2 This test method examines the adhesive and cohesive
3.1 Definitions—Refer to Terminology C717 for definitions
performance of a sealant on a specified substrate at a strain
of terms used in this standard, including but not limited to the
equivalent to a multiple of the strain/movement capability
following: adhesive failure, casting spacers, cohesive failure,
designated by the manufacturer for the given sealant per
standard conditions.
Specification C920.
3.2 separators—the device or item used to maintain the
1.3 The values stated in SI (metric) units are to be regarded
specimens at fixed extension.
as the standard. The inch values given in parentheses are for
information only.
4. Summary of Test Method
1.4 This standard does not purport to address all of the
4.1 Test specimens made in accordance with dimensions set
safety concerns, if any associated with its use. It is the
forth in Test Method C719 are fabricated and allowed to cure.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.2 Test specimens are extended at standard conditions as
bility of regulatory limitations prior to use.
defined in Terminology C717 to a specified strain and blocked
1.5 Comparable Test:
at the strain for a specified period of time.
1.5.1 ISO 10590, Building construction - Jointing products
4.3 The test specimens are examined for adhesive or cohe-
- Sealants - Determination of adhesion/cohesion properties at
sive failure, or both, of the sealant at 0, 24 and 168 h.
maintained extension after immersion in water
1.5.2 ISO 8340, Building construction - Jointing products - 4.4 A duplicate set of three test specimens are cured at
Sealants - Determination of tensile properties at maintained
standard conditions as defined in Terminology C717, extended
extension to a specified strain, and then immersed (totally) in deionized
water or specified medium (3 specimens/liter of liquid).
2. Referenced Documents
4.5 Immersed test specimens are observed at 0, 24 and 168
2
2.1 ASTM Standards:
and other additional specified hours.
C717Terminology of Building Seals and Sealants
4.6 This test method uses ASTM standard substrates as
C719Test Method for Adhesion and Cohesion of Elasto-
described in Guide C1375. This test method does not exclude
the use of any other substrate that provides a suitable flat
surface.
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.30 on
5. Significance and Use
Adhesion
CurrenteditionapprovedJune1,2016.PublishedJuly2016.Originallyapproved
5.1 Inanysealantapplication,thesealantmustbecapableof
in2006.Lastpreviouseditionapprovedin2014asC1635-14.DOI:10.1520/C1635-
maintaining an adhesive bond to the substrate when held in
16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or strain for its intended service life.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.2 This test method is an indicator of a sealant’s ability to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. adhere under strain to a given substrate.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C1635 − 16
5.3 The default test strain is the movement ability of the on top surface of substrates to prevent sealant from curing on
sealant as designated by the manufacturer. The default joint the top surface. Remove the tape immediately following filling
1 1
configuration is 12.7 × 12.7 × 50.8 mm ( ⁄2 × ⁄2 × 2 in.). Other the specimen joint cavity.
strains and joint configurations may be used and reported as
7.2 Curing Method:
noted in Section 8 and Table 1.
7.2.1 Cure specimens under one of the fol
...

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 − 14 C1635 − 16
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 designated by the manufacturer for the given sealant per 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.
1.4 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.
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
2. Referenced Documents
2
2.1 ASTM Standards:
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. Terminology
3.1 Definitions:
3.1.1 casting spacers—the spacers used in the fabrication of the joints made from wet sealant
3.1.2 separators—the device or item used to maintain the specimens at fixed extension.
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.
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 Sept. 1, 2014June 1, 2016. Published October 2014July 2016. Originally approved in 2006. Last previous edition approved in 20062014 as
C1635-06.-14. DOI: 10.1520/C1635-14.10.1520/C1635-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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

---------------------- Page: 1 ----------------------
C1635 − 16
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 defined in Terminology C717, extended to a
specified strain, and then immersed (totally) in deionized water or specified medium (3 specimens/liter of liquid).
4.5 Immersed test specimens are observed at 0, 24 and 168 and other additional specified hours.
4.6 This test method uses ASTM standard substrates as described in Guide C1375. This test method does not exclude the use
of any other substrate that provides a suitable flat surface.
5. 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
...