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ASTM C910-16(2021)

(Test Method)

Standard Test Method for Bond and Cohesion of One-Part Elastomeric Solvent Release-Type Sealants

Standard Test Method for Bond and Cohesion of One-Part Elastomeric Solvent Release-Type Sealants

ABSTRACT
This test method details the standard procedures for the determination of the bond and cohesion of one-part elastomeric solvent release-type sealants after high- and low-temperature aging. The materials and apparatuses needed for this test procedure are an extension machine, a forced-draft type oven, a convection type oven, a freezer chest or cold box, mortar blocks, glass plates, aluminum alloy plates, and polyethylene spacer bars. This test method also requires the use of the following reagents: acetone or methyl ethyl ketone solvents; detergent solution; and distilled water.
SCOPE
1.1 This test method determines the bond and cohesion of one-part, elastomeric, solvent release-type sealants after high- and low-temperature aging.  
1.2 The subcommittee with jurisdiction is not aware of any similar ISO standard.  
1.3 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.
Note 1: Currently there is no ISO standard similar to this test method.  
1.4 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.

General Information

Status
Published
Publication Date
30-Apr-2021
ICS
83.060 - Rubber
91.100.50 - Binders. Sealing materials
Technical Committee
C24 - Building Seals and Sealants
Drafting Committee
C24.30 - Adhesion
Current Stage
Ref Project

Relations

Refers
ASTM C717-19 - Standard Terminology of Building Seals and Sealants
Effective Date
01-Mar-2019
Refers
ASTM E145-19 - Standard Specification for Gravity-Convection and Forced-Ventilation Ovens
Effective Date
01-Mar-2019
Refers
ASTM C717-18 - Standard Terminology of Building Seals and Sealants
Effective Date
01-Mar-2018
Refers
ASTM C717-17a - Standard Terminology of Building Seals and Sealants
Effective Date
01-Nov-2017
Refers
ASTM C717-17 - Standard Terminology of Building Seals and Sealants
Effective Date
01-Jan-2017
Refers
ASTM C717-16a - Standard Terminology of Building Seals and Sealants
Effective Date
15-Nov-2016
Refers
ASTM C717-16 - Standard Terminology of Building Seals and Sealants
Effective Date
01-Sep-2016
Refers
ASTM C717-14a - Standard Terminology of Building Seals and Sealants
Effective Date
01-May-2014
Refers
ASTM C717-14 - Standard Terminology of Building Seals and Sealants
Effective Date
01-Feb-2014
Refers
ASTM C717-13 - Standard Terminology of Building Seals and Sealants
Effective Date
01-Nov-2013
Refers
ASTM C717-12b - Standard Terminology of Building Seals and Sealants
Effective Date
01-Dec-2012
Refers
ASTM C717-12a - Standard Terminology of Building Seals and Sealants
Effective Date
01-May-2012
Refers
ASTM C717-12 - Standard Terminology of Building Seals and Sealants
Effective Date
15-Jan-2012
Refers
ASTM E145-94(2011) - Standard Specification for Gravity-Convection and Forced-Ventilation Ovens
Effective Date
01-Dec-2011
Refers
ASTM C717-11a - Standard Terminology of Building Seals and Sealants
Effective Date
01-Mar-2011

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ASTM C910-16(2021) - Standard Test Method for Bond and Cohesion of One-Part Elastomeric Solvent Release-Type SealantsASTM C910-16(2021) - Standard Test Method for Bond and Cohesion of One-Part Elastomeric Solvent Release-Type Sealants
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ASTM C910-16(2021) - Standard Test Method for Bond and Cohesion of One-Part Elastomeric Solvent Release-Type Sealants
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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: C910 − 16 (Reapproved 2021)
Standard Test Method for
Bond and Cohesion of One-Part Elastomeric Solvent
Release-Type Sealants
This standard is issued under the fixed designation C910; 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 E145 Specification for Gravity-Convection and Forced-
Ventilation Ovens
1.1 This test method determines the bond and cohesion of
one-part, elastomeric, solvent release-type sealants after high-
3. Terminology
and low-temperature aging.
3.1 Definitions—Refer to Terminology C717 for definitions
1.2 The subcommittee with jurisdiction is not aware of any
of the following terms used in this test method: elastomer,
similar ISO standard.
elastomeric, sealant, standard conditions, solvent-release seal-
1.3 This standard does not purport to address all of the
ant.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Apparatus
priate safety, health, and environmental practices and deter-
4.1 Extension Machine,asshowninFig.1,sodesignedthat
mine the applicability of regulatory limitations prior to use.
the test specimen can be automatically extended at a constant
NOTE 1—Currently there is no ISO standard similar to this test method.
1 1
rate of 3.18 mm ( ⁄8 in.)/h from a joint width of 12.7 mm ( ⁄2
1.4 This international standard was developed in accor-
in.) to 14.29 mm ( ⁄16 in.) at −23 6 3 °C (−10 6 5 °F).
dance with internationally recognized principles on standard-
4.2 Oven, forced-draft type, having temperature controlled
ization established in the Decision on Principles for the
at 70 6 2 °C (158 6 3.6 °F). See Specification E145.
Development of International Standards, Guides and Recom-
4.3 Oven,convectiontype,havingtemperaturecontrolledat
mendations issued by the World Trade Organization Technical
50 6 1 °C (122 6 2 °F).
Barriers to Trade (TBT) Committee.
4.4 Freezer Chest or Cold Box, having temperature con-
2. Referenced Documents
trolled at −23 6 3 °C (−10 6 5 °F).
2.1 ASTM Standards:
4.5 Mortar Blocks, six, prepared as described in Test Meth-
C717Terminology of Building Seals and Sealants
ods D1191, except that the blocks shall be approximately 25.4
D1191Test Method for Concrete Joint Sealers (Withdrawn
mm (1 in.) wide by 76.2 mm (3 in.) long by 25.4 mm (1 in.)
1996)
thick and surfaced by wet grinding on an iron lap with No. 60
silicon carbide or aluminum oxide grain.
4.6 Plates, six, of water-white polished float or plate glass
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.30 on
approximately25.4mm(1in.)wideby76.2mm(3in.)longby
Adhesion.
6.35 mm ( ⁄4 in.) thick.
Current edition approved May 1, 2021. Published May 2021. Originally
approved in 1979. Last previous edition approved in 2016 as C910–16. DOI:
4.7 Aluminum Alloy Plates, six, 6063-T5 or 6061-T6 clear
10.1520/C0910-16R21.
anodized a minimum of 20 min over a scale-free finish,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approximately25.4mm(1in.)wideby76.2mm(3in.)longby
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 6.35 mm ( ⁄4 in.) thick.
the ASTM website.
3 4.8 Polyethylene Spacer Bars,nine,approximately12.7mm
The last approved version of this historical standard is referenced on
1 1
www.astm.org. ( ⁄2in.) by 12.7 mm ( ⁄2 in.) by 50.8 mm (2 in.), 18 bars 12.7
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C910 − 16 (2021)
NOTE 1—Three-dimensional view of compression-extension machine with automatic control units shows four specimens ready for compression-
extension cycling.
FIG. 1 Compression-Extension Machine
1 1
mm( ⁄2in.)by12.7mm( ⁄2in.)by25.4mm(1in.)and18bars 7.2 Precondition the unopened containers of sealant at
9 1
14.29 mm ( ⁄16in.) by 6.35 mm ( ⁄4in.) by 25.4 mm (1 in.). standard conditions for a minimum of 24 h.
7.3 Prepare three test specimens for each substrate to be
5. Reagents
tested, as follows: Using the polyethylene spacer bars to
5.1 Acetone or Methyl Ethyl Ketone Solvents.
control the joint dimensions, form a bead of sealant 12.7 mm
4,5 1 1
( ⁄2in.)wideby12.7mm( ⁄2in.)thickby50.8mm(2in.)long
5.2 D
...

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5.1 There are differences in opinion among those concerned with sealant technology whether or not this adhesion-in-peel test simulates the type of strain and e-tensile stresses encountered by a sealant in normal use. Nevertheless, this test provides a valuable measurement of the ability of the cured sealant to maintain a bond to the substrate under severe peel conditions.  
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5.1 Weight loss through volatilization of components of a sealant in a building joint may affect sealant appearance because of shrinkage, and sealant performance because of the loss of functional sealant components. Exposure to high-temperature environments will accelerate the loss of volatiles.  
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SCOPE
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SIGNIFICANCE AND USE
5.1 It is known that solar radiation contributes to the degradation of sealants in exterior building joints. The use of a laboratory accelerated weathering machine with actinic radiation, moisture and heat appears to be a feasible means to give indications of early degradation by the appearance of sealant cracking. However, simulated weather factors in combination with extension may produce more severe degradation than weather factors only. Therefore, the effect of the weathering test is made more sensitive by the addition of the bending of the specimen at cold temperature.
SCOPE
1.1 This test method covers a laboratory procedure for determining the effects of accelerated weathering on cured-in-place elastomeric joint sealants (single- and multicomponent) for use in building construction.  
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.  
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other ASTM committees or other organizations.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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