1、Designation:D646403a(Reapproved 2009)1Standard Specification forExpandable Foam Adhesives for Fastening GypsumWallboard to Wood Framing1This standard is issued under the fixed designation D6464;the number immediately following the designation indicates the year oforiginal adoption or,in the case of
2、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.1NOTEEditorial changes were made throughout in November 2009.1.Scope*1.1 This specification establishes minimum p
3、erformancerequirements for determining strength,aging,and workingproperties of expandable foam adhesives intended for bondingback surfaces of gypsum wallboards of all thicknesses to woodframing.Minimum physical and performance requirements arespecified for all measured properties of adhesives and ad
4、hesivebonds.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if
5、 any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C1396/C1396M Specification for Gypsum BoardD905 Te
6、st Method for Strength Properties of AdhesiveBonds in Shear by Compression LoadingD907 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 terms in this specification
7、are de-fined in Terminology D907.3.2 Definitions of Terms Specific to This Standard:3.2.1 expandable foam adhesive,nany polymer that ex-pands during delivery or cure to fill the space betweensubstrates.4.Significance and Use4.1 This specification applies to expandable foam adhesivesused to bond the
8、back surface of gypsum wallboard toDouglas-fir dimensional lumber or other lumber species ofequivalent bonding qualities capable of meeting the testrequirements.4.2 The specification establishes the minimum strengthrequirements of the bond for the selected assembly materials.4.3 The adhesive is not
9、considered a substitute for mechani-cal fasteners.Fasteners will be required to restrict expansion ofthe foam adhesive while it cures.The recommended fasteningschedule must appear in the manufacturers application instruc-tions.4.4 The tests are suitable for product performance certifica-tion and qua
10、lity control programs,and can be useful to thegeneral public,adhesive manufacturers,distributors,specifiers,architects,contractors,testing laboratories and other businessesand professionals.4.5 The results do not include all possible conditions,whichmay occur during final assembly,but indicate a set
11、 of perfor-mance characteristics for laboratory controlled bonding vari-ables.5.Adhesive Physical Property Requirements5.1 Open Assembly TimeThese adhesives have a distinctopen assembly time and this time must be agreed upon by theuser and the manufacturer.5.2 Storage LifeThe adhesive shall remain s
12、erviceableand meet all the requirements of this specification for not lessthan six months after delivery,when stored in original un-opened containers at temperatures ranging from 40 to 85F(4to 30C).1This specification is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct resp
13、onsibility of Subcommittee D14.70 on ConstructionAdhesives.Current edition approved Nov.1,2009.Published December 2009.Originallyapproved in 1999.Last previous edition approved in 2003 as D6464-03a1.DOI:10.1520/D6464-03A09E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orconta
14、ct ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshoh
15、ocken,PA 19428-2959.United States1 6.Adhesive Properties and Performance6.1 The adhesives shall conform to the requirements sum-marized in Table 1.7.Materials and Apparatus for Conducting Tests7.1 AdhesivesThe adhesive shall be an expandable foamadhesive.7.2 Gypsum Wallboard12in.(12.7 mm)thick,compl
16、yingwith Specification C1396/C1396M;the dimensions are speci-fied in each test.7.3 Plywood34or2332in.(19 or 18.3 mm)-thick U.S.Product Standard PS-1-95 grade marked stamped,commercialplywood,Exterior,Group 1 Species,A-A or A-B grade faceand back veneers.The test specimen dimensions are specifiedin each test.7.4 Douglas-Fir Lumber112by 112by 312in.(38 by 38by 89 mm),clear,dry lumber,(moisture content of 8 to 10%),with the bonding surface free of bark,knots,splits,and pitch.NOTE1The tensile test w
