ASTM_D_6083_-_97a.pdf

Designation:D 6083 97aStandard Specification forLiquid Applied Acrylic Coating Used in Roofing1This standard is issued under the fixed designation D 6083;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(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers a liquid-applied water-dispersed 100%acrylic elastomeric latex coating used as aprotective coating for roofs.1.2 This specification does not provide guidance for appli-cation.1.3 The values stated in inch-pound units are to be regardedas the standard.SI units used are in parentheses.The valuesgiven in parentheses are for information only.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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:C 794 Test Method for Adhesion-in-Peel of ElastomericJoint Sealants2D 16 Terminology Relating to Paint,Varnish,Lacquer,andRelated Products2D 471 Test Method for Rubber Property-Effect of Liquids3D 522 Test Method for Mandrel Bend Test of AttachedOrganic Coatings4D 562 Test Method for Consistency of Paints Using theStormer Viscometer4D 624 Test Method for Tear Strength of ConventionalVulcanized Rubber and Thermoplastic Elastomer3D 903 Test Method for Peel or Stripping Strength of Adhe-sive Bonds5D 1079 Terminology Relating to Roofing,Waterproofing,and Bituminous Materials6D 1644 Test Method for Nonvolatile Content of Varnishes4D 1653 Test Method for Water Vapor Transmission ofOrganic Coated Films4D 2196 Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational(Brookfield)Viscom-eter4D 2370 Test Method for Tensile Properties of OrganicCoatings4D 2697 Test Method for Volume Nonvolatile Matter inClear or Pigmented Coatings4D 4798 Test Method for Accelerated Weathering Test Con-ditions and Procedures for Bitumen Materials(Xenon-ArcMethod)63.Terminology3.1 For definitions of terms used in this specification,seeTerminologies D 16 and D 1079.4.Packaging and Materials4.1 Shipping containers shall be marked with the name ofthe material,the stock number,lot number,ASTM designationnumber and year of issue,quantity therein,shelf-life date,andthe name of the manufacturer or supplier.5.Materials and Manufacture5.1 Composition The product,as manufactured,shall bein liquid form for application to the roof surface by brushing,squeegeeing,rolling,or spraying.The product shall be com-posed of a water-based 100%acrylic elastomeric emulsionpolymer,to which various pigments and other additives havebeen added to give the required physical properties.6.Liquid and Physical Properties6.1 Although the product is supplied as a liquid,its perfor-mance is based on the functional properties of the driedmaterial in film form.The coating is formed into a film fullyadhered to the substrate surface.6.2 Liquid Property RequirementsThe liquid coating shallcomply with the property requirements in Table 1.6.3 Film Physical Property RequirementsSpecimenpreparation(dry time)films are prepared by applying twocoats,with a minimum of a 4 h drying period between coats,toa fluorinated ethylene-propylene(FEP)sheet substrate(seeTest Method D 2370)to give a total dry film thickness of 20 62 mils(0.506 0.05 mm).The film is allowed to thoroughly dry1This specification is under the jurisdiction of ASTM Committee D08 onRoofing,Waterproofing,and Bituminous Materials and is the direct responsibility ofSubcommittee D08.18 on Nonbituminous Organic Roof Coverings.Current edition approved July 10,1997.Published January 1998.Originallypublished as D 608397.Last previous edition D 608397.2Annual Book of ASTM Standards,Vol 04.07.3Annual Book of ASTM Standards,Vol 09.01.4Annual Book of ASTM Standards,Vol 06.01.5Annual Book of ASTM Standards,Vol 15.06.6Annual Book of ASTM Standards,Vol 04.04.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.at 73.4 6 3.6F(23 6 2C)and 50 6 10%relative humidityfor 336 6 12 h.The film shall be removed from the releasepaper and turned over after the first 168 h to allow for completedrying.(See Table 2.)7.Test Methods7.1 Viscosity(Test Method D 2196)Viscosity BrookfieldLVT Viscometer No.4 spindle,6 RPM.7.2 Elongation and Tensile Strength(Test Method D 2370):7.2.1 Test methods:73.4 6 3.6F(23 6 2C)at 50%610%RH and 0 6 2F(186 2C).7.2.2 Cut specimen measuring 3 in.(75 mm)long by12in.(12.7 mm)6 10%wide.7.2.3 Test Type or Functional Equivalent:Cross head speed1.0 in./min(25.4/min)Gage length1.0 in.(25.4 mm)7.3 Accelerated Weathering(Test Method D 4798):Cycle employedABlack panel temperature63 6 3CFilterInner and outer borosilicateor equivale