ASTM_C_910_-_16.pdf

Designation:C91016Standard Test Method forBond and Cohesion of One-Part Elastomeric SolventRelease-Type Sealants1This standard is issued under the fixed designation C910;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.1.Scope1.1 This test method determines the bond and cohesion ofone-part,elastomeric,solvent release-type sealants after high-and low-temperature aging.1.2 The subcommittee with jurisdiction is not aware of anysimilar ISO standard.1.3 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 and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE1Currently there is no ISO standard similar to this test method.2.Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsD1191 Test Method for Concrete Joint Sealers(Withdrawn1996)3E145 Specification for Gravity-Convection and Forced-Ventilation Ovens3.Terminology3.1 DefinitionsRefer to Terminology C717 for definitionsof the following terms used in this test method:elastomer,elastomeric,sealant,standard conditions,solvent-release seal-ant.4.Apparatus4.1 Extension Machine,as shown in Fig.1,so designed thatthe test specimen can be automatically extended at a constantrate of 3.18 mm(18in.)/h from a joint width of 12.7 mm(12in.)to 14.29 mm(916in.)at 23 6 3C(10 6 5F).4.2 Oven,forced-draft type,having temperature controlledat 70 6 2C(158 6 3.6F).See Specification E145.4.3 Oven,convection type,having temperature controlled at50 6 1C(122 6 2F).4.4 Freezer Chest or Cold Box,having temperature con-trolled at 23 6 3C(10 6 5F).4.5 Mortar Blocks,six,prepared as described in Test Meth-ods D1191,except that the blocks shall be approximately 25.4mm(1 in.)wide by 76.2 mm(3 in.)long by 25.4 mm(1 in.)thick and surfaced by wet grinding on an iron lap with No.60silicon carbide or aluminum oxide grain.4.6 Plates,six,of water-white polished float or plate glassapproximately 25.4 mm(1 in.)wide by 76.2 mm(3 in.)long by6.35 mm(14in.)thick.4.7 Aluminum Alloy Plates,six,6063-T5 or 6061-T6 clearanodized a minimum of 20 min over a scale-free finish,approximately 25.4 mm(1 in.)wide by 76.2 mm(3 in.)long by6.35 mm(14in.)thick.4.8 Polyethylene Spacer Bars,nine,approximately 12.7 mm(12in.)by 12.7 mm(12in.)by 50.8 mm(2 in.),18 bars 12.7mm(12in.)by 12.7 mm(12in.)by 25.4 mm(1 in.)and 18 bars14.29 mm(916in.)by 6.35 mm(14in.)by 25.4 mm(1 in.).5.Reagents5.1 Acetone or Methyl Ethyl Ketone Solvents.5.2 Detergent Solution.4,55.3 Distilled Water.6.Sampling6.1 Take all test specimens from a previously unopenedcontainer.1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C24.30 onAdhesion.Current edition approved Jan.15,2016.Published March 2016.Originallyapproved in 1979.Last previous edition approved in 2011 as C91006(2011).DOI:10.1520/C0910-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Neodol 25-35,a registered trademark of Shell Oil Co.,One Shell Plaza,Houston,TX 77002,has been found suitable.5Dawn,a registered trademark of Proctor and Gamble Co.,P.O.Box 579,Cincinnati,OH 54201,or Palmolive Green,a registered trademark of ColgatePalmolive Co.,300 T.ParkAve.,NewYork,NewYork,have been found suitable forthis purpose.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.Procedure7.1 Clean the glass and aluminum plate first with solvent,with detergent solution,followed by a final rinse with distilledwater.Allow plates to air dry.Prepare the six mortar blocks asdescribed in 4.5.7.2 Precondition the unopened containers of sealant atstandard conditions for a minimum of 24 h.7.3 Prepare three test specimens for each substrate to betested,as follows:Using the polyethylene spacer bars tocontrol the joint dimensions,form a bead of sealant 12.7 mm(12in.)wide by 12.7 mm(12in.)thick by 50.8 mm(2 in.)longbetween the parallel 25.4 mm(1 in.)by 76.2 mm(3 in.)longfaces of two similar blocks or plates.7.4 Condition these specimens by allowing them to set for24 h at standard conditions,then drying them in a convectionoven for 7 days at 50 6 1C(122 6 2F).7.5 Place the specimens in freezer for 24 h at 23 6 3C(10 6 5F).Dislodge spacer bars from sealant,but do notremove spacer bars from assembled specimens.7.6 Remove specimens from the freezer and condition themfor