1、Designation:D3468/D3468M99(Reapproved 2013)1Standard Specification forLiquid-Applied Neoprene and ChlorosulfonatedPolyethylene Used in Roofing and Waterproofing1This standard is issued under the fixed designation D3468/D3468M;the number immediately following the designation indicates theyear of orig
2、inal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEUnits information was editorially corrected in July 2013.1.Scope1.1 This spe
3、cification covers liquid-applied neoprene andchlorosulfonated polyethylene synthetic rubber solutions suit-able for use in roofing and waterproofing.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact
4、equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 The following precautionary caveat pertains only to thetest method portion,Section 9,of this specification:Thisstandard does not purport t
5、o address the safety concerns,ifany,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D412 Test Methods for
6、 Vulcanized Rubber and Thermoplas-tic ElastomersTensionD429 Test Methods for Rubber PropertyAdhesion toRigid SubstratesD471 Test Method for Rubber PropertyEffect of LiquidsD711 Test Method for No-Pick-Up Time of Traffic PaintD823 Practices for Producing Films of Uniform Thicknessof Paint,Varnish,and
7、 Related Products on Test PanelsD1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1640 Test Methods for Drying,Curing,or Film Formationof Organic Coatings at Room TemperatureD1644 Test Methods for Nonvolatile Content of VarnishesD1824 Test Method for Apparent Visc
8、osity of Plastisols andOrganosols at Low Shear RatesE96/E96M Test Methods for Water Vapor Transmission ofMaterials2.2 Department of Commerce Voluntary Product Standard:PS-1 Construction and Industrial Plywood33.Classification3.1 Type INeoprene synthetic rubber solutions for usealone or in combinatio
9、n with chlorosulfonated polyethylenesynthetic rubber solutions:3.1.1 Grade 1Neoprene rubber solution.3.1.2 Grade 2Fiber-modified neoprene rubber solution.3.2 Type IIChlorosulfonated polyethylene synthetic rub-ber solutions.4.Materials and Manufacture4.1 The designated polymer shall comprise 100%of t
10、heelastomer and a minimum of 60%of the nonvolatile content.4.2 The designated polymer shall be homogeneously com-pounded with pigments,extenders,stabilizers,antidegradants,and curatives.The product shall be free from graininess,gelparticles,and foreign materials.5.Physical Requirements5.1 The materi
11、al shall conform to the physical propertiesprescribed in Table 1.6.Sampling6.1 The sample shall be a 1-L 1-qt aliquot consisting of acomposite taken,when possible,from three or more separatecontainers chosen at random.Samples shall also be taken fromany other containers that appear to be nonrepresen
12、tative andshall be tested separately.Before a sample is withdrawn,the1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.18on Nonbituminous Organic Roof Coverings.Current edition approved July 1,2013.Pub
13、lished July 2013.Originally approvedin 1975.Last previous edition approved in 2006 as D3468 99(2006)1.DOI:10.1520/D3468_D3468M-99R13E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume inform
14、ation,refer to the standards Document Summary page onthe ASTM website.3Available from the Superintendent of Documents,U.S.Government PrintingOffice,Washington,DC 20402.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 contents in the contai
15、ner shall be mixed to uniform consis-tency.The sample shall be placed immediately in an airtightglass jar or metal can until tested.7.Retest and Rejection7.1 If the results of any test do not conform to the require-ments of this specification,retesting to establish conformitymay be performed as agre
16、ed upon between the purchaser andthe seller.8.Specimen Preparation8.1 Prepare all film specimens in accordance with Method Dof Test Methods D823.4Take care to prevent puddling andkeep specimens horizontal at all times.When more than onecoat is required,allow each to dry to touch prior to applicationof subsequent coats.8.2 Prepare 0.25-mm 10-mil wet film specimens for de-termination of drying time on glass plates,approximately 15 by75 mm.58by 3 in.8.3 Prepare 0.75-mm 30-mil wet film specimens for