1、Designation:D540219Standard Practice forAssessing the Solvent Resistance of Organic CoatingsUsing Solvent Rubs1This standard is issued under the fixed designation D5402;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last
2、 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 practice describes a solvent rub technique forassessing the solvent resistance of an organic coating thatchemically change
3、s during the curing process.This techniquecan be used in the laboratory,in the field,or in the fabricatingshop.Test Method D4752 is the preferred method for ethylsilicate zinc-rich primers.1.2 This practice does not specify the solvent,number ofdouble rubs,or expected test results.1.3 The values sta
4、ted 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,healt
5、h,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Consult the suppliers Safety Data Sheet for specific hazardinformation relating to the solvent used.1.5 This international standard was developed in accor-dance with internationally recognized princ
6、iples 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:2D235 Specification for Mineral Spiri
7、ts(Petroleum Spirits)(Hydrocarbon Dry Cleaning Solvent)D523 Test Method for Specular GlossD740 Specification for Methyl Ethyl KetoneD843 Specification for Nitration Grade XyleneD3363 Test Method for Film Hardness by Pencil TestD4138 Practices for Measurement of Dry Film Thickness ofProtective Coatin
8、g Systems by Destructive,Cross-Sectioning MeansD4752 Practice for Measuring MEK Resistance of EthylSilicate(Inorganic)Zinc-Rich Primers by Solvent RubD7091 Practice for Nondestructive Measurement of DryFilm Thickness of Nonmagnetic Coatings Applied toFerrous Metals and Nonmagnetic,Nonconductive Coat
9、-ings Applied to Non-Ferrous Metals3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 double rub,nthe act of rubbing a cloth in onecomplete forward and back motion over a coated surface.4.Significance and Use4.1 Coatings that chemically change during the curingprocess,such as epox
10、ies,vinyl esters,polyesters,alkyds andurethanes,become more resistant to solvents as they cure.These coatings should reach specific levels of solvent resis-tance prior to being topcoated and prior to placing in service;the levels of solvent resistance necessary vary with the type ofcoating and the i
11、ntended service.Rubbing with a cloth satu-rated with the appropriate solvent is one way to determinewhen a specific level of solvent resistance is reached.However,the level of solvent resistance by itself does not indicate fullcure and some coatings become solvent resistant before theybecome suffici
12、ently cured for service.4.2 The time required to reach a specific level of solventresistance can be influenced by temperature,film thickness,airmovement and,for water-borne or water-reactive coatings,humidity.4.3 The test solvents effect upon the coating varies withcoating type and solvent used.The
13、coating manufacturer mayspecify the solvent,the number of double rubs,and the specifictest results needed.5.Materials and Equipment5.1 Solvent:1This practice is under the jurisdiction of ASTM Committee D01 on Paint andRelated Coatings,Materials,and Applications and is the direct responsibility ofSub
14、committee D01.46 on Industrial Protective Coatings.Current edition approved June 1,2019.Published June 2019.Originallyapproved in 1993.Last previous edition approved in 2015 as D5402 15.DOI:10.1520/D5402-19.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Se
15、rvice at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accord
16、ance 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.1 5.1.1 Methyl Ethyl Ketone(MEK),conforming to Specifi-cation D740,or5.1.2 Mineral Spirits,conforming to Specification D235,or5.1.3 Xylene,conforming to Specification D843,or5.1.4 Other Solvents,as specified by the coating manufac-turer