ASTM_D_6862_-_11_2021.pdf

Designation:D686211(Reapproved 2021)Standard Test Method for90 Degree Peel Resistance of Adhesives1This standard is issued under the fixed designation D6862;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONThe purpose of this test method is to provide for the determination of the resistance-to-peel strengthof adhesives when surfaces joined by an adhesive are separated by applying a force to one of thesurfaces at a 90 degree angle.The accuracy of the results of strength tests of adhesive bonds willdepend on the conditions under which the bonding process is carried out.Unless otherwise agreedupon between the manufacturer and the purchaser,the bonding conditions shall be prescribed by themanufacturer of the adhesive.In order to ensure that complete information is available to theindividual conducting the tests,the manufacturer of the adhesive shall furnish numerical values andother specific information for each of the following variables:(1)Procedure for preparation of the surfaces prior to application of the surfaces prior to applicationof the adhesive,the cleaning and drying of surfaces,and special surface treatments,which are notspecifically limited by the pertinent test method.(2)Complete mixing directions for the adhesive.(3)Conditions for the application of the adhesive,including the rate of spread or thickness of thefilm,number of coats to be applied,whether to one or both of the surfaces,and the conditions ofdrying.(4)Assembly conditions before the application of pressure,including room temperature and lengthof time.(5)Curing conditions,including the amount of pressure to be applied,the length of time underpressure,and the temperature of the assembly when under pressure.It should be stated whether thistemperature is that of the glue line or of the atmosphere at which the assembly is to be maintained.(6)Conditioning procedure before testing,unless a standard procedure is specified,including lengthof time and relative humidity.Range may be prescribed for any variable provided it is acceptable to both the manufacturer and thepurchaser of the adhesive.1.Scope1.1 This test method covers the determination of theresistance-to-peel strength of an adhesive bond between onerigid adherend and one flexible adherend when tested at anangle of approximately 90 degrees under specified conditionsof preparation and testing.1.2 A variation in thickness of the adherends will generallyinfluence test values.For this reason,the thickness of theadherends used to make the test specimens shall be specified inthe material specification.When no thickness is specified,theflexible adherend shall be 0.60 mm(0.025 in.)thick and therigid adherend shall be 1.60 mm(0.060 in.)thick.NOTE1A heavy fabric,such as canvas,has been used as a flexibleadherend.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1This test method is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.10 on WorkingProperties.Current edition approved April 1,2021.Published April 2021.Originallyapproved in 2003.Last previous edition approved in 2016 as D6862 11(2016).DOI:10.1520/D6862-11R21.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.11.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D907 Terminology of AdhesivesE4 Practices for Force Verification of Testing MachinesE177 Practice for Use of the Terms Precision and Bias inASTM Test Methods3.Terminology3.1 DefinitionsMany of the definitions used in this testmethod are defined in Terminology D907.4.Summary of Test Method4.1 This test method consists of testing laminated or bondedadherends,where one adherend is rigid and the other adherendis flexible,by peeling of the flexibl