1、Designation: D3359 091Standard Test Methods forMeasuring Adhesion by Tape Test1This standard is issued under the fixed designation D3359; 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 parent
2、heses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1NOTEFootnote 5 and 5.2 were corrected editorially in June 2010.1. Scope*1.1 These
3、 test methods cover procedures for assessing theadhesion of coating films to metallic substrates by applying andremoving pressure-sensitive tape over cuts made in the film.NOTE 1This test method has been reported being used to measureadhesion of organic coatings on soft substrates (for example, wood
4、 andplastic). Issues with plastic substrates are noted inAppendix X1.Asimilartest method, ISO 2409, permits tests on soft substrates (for example, woodand plaster). Precision and bias data on the later is lacking. Test MethodsD3359 was developed with metal as the substrate and, in the absence ofsupp
5、orting precision and bias data, is so limited.1.2 Test Method A is primarily intended for use at job siteswhile Test Method B is more suitable for use in the laboratory.Also, Test Method B is not considered suitable for films thickerthan 5 mils (125m).NOTE 2Subject to agreement between the purchaser
6、 and the seller,Test Method B can be used for thicker films if wider spaced cuts areemployed.1.3 These test methods are used to establish whether theadhesion of a coating to a substrate is at a generally adequatelevel. They do not distinguish between higher levels ofadhesion for which more sophistic
7、ated methods of measure-ment are required.NOTE 3It should be recognized that differences in adherability of thecoating surface can affect the results obtained with coatings having thesame inherent adhesion.1.4 This test method is similar in content (but not techni-cally equivalent) to ISO 2409.1.5 I
8、n multicoat systems adhesion failure may occur be-tween coats so that the adhesion of the coating system to thesubstrate is not determined.1.6 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.7 This standard does not purport t
9、o address the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D609 Practice for P
10、reparation of Cold-Rolled Steel Panelsfor Testing Paint, Varnish, Conversion Coatings, andRelated Coating ProductsD823 Practices for Producing Films of Uniform Thicknessof Paint, Varnish, and Related Products on Test PanelsD1000 Test Methods for Pressure-Sensitive Adhesive-Coated Tapes Used for Elec
11、trical and Electronic Applica-tionsD1730 Practices for Preparation of Aluminum andAluminum-Alloy Surfaces for PaintingD2092 Guide for Preparation of Zinc-Coated (Galvanized)Steel Surfaces for Painting3D2370 Test Method for Tensile Properties of Organic Coat-ingsD3330/D3330M Test Method for Peel Adhe
12、sion ofPressure-Sensitive TapeD3924 Specification for Environment for Conditioning andTesting Paint, Varnish, Lacquer, and Related MaterialsD4060 Test Method for Abrasion Resistance of OrganicCoatings by the Taber Abraser1These test methods are under the jurisdiction of ASTM Committee D01 onPaint an
13、d Related Coatings, Materials, and Applications and are the directresponsibility of Subcommittee D01.23 on Physical Properties of Applied PaintFilms.Current edition approved June 1, 2009. Published June 2009. Originallyapproved in 1974. Last previous edition approved in 2008 as D3359 08. DOI:10.1520
14、/D3359-09.2For 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.3Withdrawn. The last approved version of this histo
15、rical standard is referencedon www.astm.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.2 Other Standard:ISO 2409 Paint and Varnishes Cross-cut test43. Summary o
16、f Test Methods3.1 Test Method AAn X-cut is made through the film tothe substrate, pressure-sensitive tape is applied over the cut andthen removed, and adhesion is assessed qualitatively on the 0to 5 scale.3.2 Test Method BA lattice pattern with either six oreleven cuts in each direction is made in t
17、he film to thesubstrate, pressure-sensitive tape is applied over the lattice andthen removed, and adhesion is evaluated by comparison withdescriptions and illustrations.4. Significance and Use4.1 If a coating is to fulfill its function of protecting ordecorating a substrate, it must adhere to it for
18、 the expectedservice life. Because the substrate and its surface preparation(or lack of it) have a drastic effect on the adhesion of coatings,a method to evaluate adhesion of a coating to differentsubstrates or surface treatments, or of different coatings to thesame substrate and treatment, is of co
19、nsiderable usefulness inthe industry.4.2 The limitations of all adhesion methods and the specificlimitation of this test method to lower levels of adhesion (see1.3) should be recognized before using it. The intra- andinter-laboratory precision of this test method is similar to otherwidely-accepted t
20、ests for coated substrates (for example, TestMethod D2370 and Test Method D4060), but this is partly theresult of it being insensitive to all but large differences inadhesion. The limited scale of 0 to 5 was selected deliberatelyto avoid a false impression of being sensitive.TEST METHOD AX-CUT TAPE
21、TEST5. Apparatus and Materials5.1 Cutting ToolSharp razor blade, scalpel, knife or othercutting devices. It is of particular importance that the cuttingedges be in good condition.5.2 Cutting GuideSteel or other hard metal straightedgeto ensure straight cuts.NOTE 4Tapes put on the market at this time
22、 have a shelf life that runsout in July 2010. Subcommittee D01.23 is assessing alternative tapes anda new interlaboratory study is planned to take place in 2010. Alternativetapes with specifications similar to that of Permacel P99 tape are available.Users of alternative tapes should check whether th
23、e alternative tapes givecomparable results to the Permacel P99 tape.5.3 Tape25-mm (1.0-in.) wide semitransparent pressure-sensitive tape5with an adhesion strength agreed upon by thesupplier and the user is needed. Because of the variability inadhesion strength from batch-to-batch and with time, it i
24、sessential that tape from the same batch be used when tests areto be run in different laboratories. If this is not possible the testmethod should be used only for ranking a series of testcoatings.5.4 Rubber Eraser, on the end of a pencil.5.5 IlluminationA light source is helpful in determiningwhethe
25、r the cuts have been made through the film to thesubstrate.6. Test Specimens6.1 When this test method is used in the field, the specimenis the coated structure or article on which the adhesion is to beevaluated.6.2 For laboratory use apply the materials to be tested topanels of the composition and s
26、urface conditions on which it isdesired to determine the adhesion.NOTE 5Applicable test panel description and surface preparationmethods are given in Practice D609 and Practices D1730 and D2092.NOTE 6Coatings should be applied in accordance with Practice D823,or as agreed upon between the purchaser
27、and the seller.NOTE 7If desired or specified, the coated test panels may be subjectedto a preliminary exposure such as water immersion, salt spray, or highhumidity before conducting the tape test. The conditions and time ofexposure will be governed by ultimate coating use or shall be agreed uponbetw
28、een the purchaser and seller.7. Procedure7.1 Select an area free of blemishes and minor surfaceimperfections. For tests in the field, ensure that the surface isclean and dry. Extremes in temperature or relative humiditymay affect the adhesion of the tape or the coating.7.1.1 For specimens which have
29、 been immersed: Afterimmersion, clean and wipe the surface with an appropriatesolvent which will not harm the integrity of the coating. Thendry or prepare the surface, or both, as agreed upon between thepurchaser and the seller.7.2 Make two cuts in the film each about 40 mm (1.5 in.)long that inters
30、ect near their middle with a smaller angle ofbetween 30 and 45. When making the incisions, use thestraightedge and cut through the coating to the substrate in onesteady motion.7.3 Inspect the incisions for reflection of light from themetal substrate to establish that the coating film has beenpenetra
31、ted. If the substrate has not been reached make anotherX in a different location. Do not attempt to deepen a previouscut as this may affect adhesion along the incision.7.4 At each day of testing, before initiation of testing,remove two complete laps of the pressure-sensitive tape fromthe roll and di
32、scard. Remove an additional length at a steady(that is, not jerked) rate and cut a piece about 75 mm (3 in.)long.7.5 Place the center of the tape at the intersection of the cutswith the tape running in the same direction as the smallerangles. Smooth the tape into place by finger in the area of thein
33、cisions and then rub firmly with the eraser on the end of apencil. The color under the transparent tape is a usefulindication of when good contact has been made.7.6 Within 90 6 30 s of application, remove the tape byseizing the free end and pulling it off rapidly (not jerked) backupon itself at as c
34、lose to an angle of 180 as possible.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5Permacel P99 tape, previously identified as suitable for this purpose, waswithdrawn from manufacture in July 2009.D3359 09127.7 Inspect
35、the X-cut area for removal of coating from thesubstrate or previous coating and rate the adhesion in accor-dance with the following scale:5A No peeling or removal,4A Trace peeling or removal along incisions or at their intersection,3A Jagged removal along incisions up to 1.6 mm (116 in.) on either s
36、ide,2A Jagged removal along most of incisions up to 3.2 mm (18 in.) on eitherside,1A Removal from most of the area of the X under the tape, and0A Removal beyond the area of the X.7.8 Repeat the test in two other locations on each test panel.For large structures make sufficient tests to ensure that t
37、headhesion evaluation is representative of the whole surface.7.9 After making several cuts examine the cutting edge and,if necessary, remove any flat spots or wire-edge by abradinglightly on a fine oil stone before using again. Discard cuttingtools that develop nicks or other defects that tear the f
38、ilm.8. Report8.1 Report the number of tests, their mean and range, andfor coating systems, where the failure occurred that is, betweenfirst coat and substrate, between first and second coat, etc.8.2 For field tests report the structure or article tested, thelocation and the environmental conditions
39、at the time oftesting.8.3 For test panels report the substrate employed, the type ofcoating, the method of cure, and the environmental conditionsat the time of testing.8.4 If the adhesion strength of the tape has been determinedin accordance with Test Methods D1000 or D3330/D3330M,report the results
40、 with the adhesion rating(s). If the adhesionstrength of the tape has not been determined, report the specifictape used and its manufacturer.8.5 If the test is performed after immersion, report immer-sion conditions and method of sample preparation.9. Precision and Bias69.1 In an interlaboratory stu
41、dy of this test method in whichoperators in six laboratories made one adhesion measurementon three panels each of three coatings covering a wide range ofadhesion, the within-laboratories standard deviation was foundto be 0.33 and the between-laboratories 0.44. Based on thesestandard deviations, the
42、following criteria should be used forjudging the acceptability of results at the 95 % confidencelevel:9.1.1 RepeatabilityProvided adhesion is uniform over alarge surface, results obtained by the same operator should beconsidered suspect if they differ by more than 1 rating unit fortwo measurements.9
43、.1.2 ReproducibilityTwo results, each the mean of trip-licates, obtained by different operators should be consideredsuspect if they differ by more than 1.5 rating units.9.2 Bias cannot be established for these test methods.TEST METHOD BCROSS-CUT TAPE TEST10. Apparatus and Materials10.1 Cutting Tool7
44、Sharp razor blade, scalpel, knife orother cutting device having a cutting edge angle between 15and 30 that will make either a single cut or several cuts atonce. It is of particular importance that the cutting edge oredges be in good condition.10.2 Cutting GuideIf cuts are made manually (as opposedto
45、 a mechanical apparatus) a steel or other hard metal straight-edge or template to ensure straight cuts.10.3 RuleTempered steel rule graduated in 0.5 mm formeasuring individual cuts.10.4 Tape, as described in 5.3.10.5 Rubber Eraser, on the end of a pencil.10.6 Illumination, as described in 5.5.10.7 M
46、agnifying GlassAn illuminated magnifier to beused while making individual cuts and examining the test area.11. Test Specimens11.1 Test specimens shall be as described in Section 6.Itshould be noted, however, that multitip cutters8provide goodresults only on test areas sufficiently plane that all cut
47、ting edgescontact the substrate to the same degree. Check for flatnesswith a straight edge such as that of the tempered steel rule(10.3).12. Procedure12.1 Where required or when agreed upon, subject thespecimens to a preliminary test before conducting the tape test(see Note 5). After drying or testi
48、ng the coating, conduct thetape test at room temperature as defined in SpecificationD3924, unless D3924 standard temperature is required oragreed.12.1.1 For specimens which have been immersed: Afterimmersion, clean and wipe the surface with an appropriatesolvent which will not harm the integrity of
49、the coating. Thendry or prepare the surface, or both, as agreed upon between thepurchaser and the seller.12.2 Select an area free of blemishes and minor surfaceimperfections, place on a firm base, and under the illuminatedmagnifier, make parallel cuts as follows:12.2.1 For coatings having a dry film thickness up to andincluding 2.0 mils (50 m) space the cuts 1 mm apart and makeeleven cuts unless otherwise agreed upon.6Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR: RR:D01-1008.
