ASTM D4707-1997(2003)e1 Standard Test Method for Measuring Paint Spatter Resistance During Roller Application《测量辊涂机耐涂料喷溅的标准试验方法》.pdf

1、Designation: D 4707 97 (Reapproved 2003)e1Standard Test Method forMeasuring Paint Spatter Resistance During RollerApplication1This standard is issued under the fixed designation D 4707; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisio

2、n, 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.e1NOTETypos editorially corrected in January 2003.1. Scope1.1 This test method covers the determination of the ten

3、-dency of a paint to spatter when applied with a paint roller toa substrate.1.2 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 determi

4、ne the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:D 3924 Specification for Standard Environment for Condi-tioning and Testing Paint, Varnish, Lacquer, and RelatedMaterials2D 3925 Practice for Sampling Liquid Paints and RelatedPigmented Coatings22.

5、2 Other Document:Pictorial Standards of Paint Roller Spatter33. Summary of Test Method3.1 The test paint is applied to a black plastic panel bydraw-down. The coated plastic panel is immediately mountedon an essentially vertical surface above a sheet of paper used tocatch any spatter. A specially des

6、igned notched spool roller(see 5.1) is rolled through the film following a definedprocedure, tending to generate spatter. Any spatter falls uponthe spatter catch paper and, after drying, is rated against thepictorial standards.4. Significance and Use4.1 Paint spatter generated by roller application

7、is depen-dent on the properties of both the paint being applied and thepaint roller cover used for the application. To eliminate theinfluence of the paint roller cover as a variable, and thus restrictthe spatter-inducing variable to the paint under test only, thepaint roller cover is replaced by a s

8、tandard notched spool rollerto generate spatter by a mechanism that simulates that of apaint-applying roller cover.4.2 Although most of the development work to establish thistest method was undertaken using latex paints, sufficient workwas also done to show its applicability to solvent-reduciblepain

9、ts.4.3 Tests during the development of this test methodshowed that the spattering properties of paints, like otherphysical properties, may in time change. Therefore, the resultsof this test are valid only for the time when the test is run.5. Apparatus5.1 Notched Spool Test Roller (Fig. 1).45.2 Glass

10、 Plate, at least 9 by 19 in. (230 by 485 mm) by14in. (6 mm) thick.5.3 U-shaped Film Caster,5having a 7-mil (175-m) clear-ance by 514 in. (135 mm) wide.5.4 Mechanical Metronome, with swinging arm adjusted to80 beats per min1This test method is under the jurisdiction of ASTM Committee D01 on Paintand

11、Related Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.42 on Architectural Coatings.Current edition approved Jan. 10, 2003. Published March 2003. Originallyapproved in 1987. Last previous edition approved in 1997 as D 4707 - 97.2Annual Book of ASTM Standard

12、s, Vol 06.01.3Copies of the pictorial photographic reference standards are contained inPictorial Standards of Coatings Defects and may be obtained from the Federationof Societies For Coatings Technology, 492 Norristown Rd., Blue Bell, PA 19422.4The sole source of supply of the notched spool test rol

13、ler known to thecommittee at this time is Precision Gage and Tool Co., 28 Volkenand Ave., Dayton,OH 45410. If you are aware of alternative suppliers, please provide this informationto ASTM International Headquarters. Your comments will receive careful consid-eration at a meeting of the responsible t

14、echnical committee,1which you may attend.5The sole source of supply of the Dow film canister known to the committee atthis time is BYKGardner, Inc., Gardner Laboratory, 2435 Linden Lane, SilverSpring, MD 20910. If you are aware of alternative suppliers, please provide thisinformation to ASTM Interna

15、tional Headquarters. Your comments will receivecareful consideration at a meeting of the responsible technical committee,1whichyou may attend.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Materials6.1 Black Plastic Panels,662 by

16、 17 in. (165 by 430 mm).6.2 Flannel Cloth.6.3 Masking Tape, 1 in. (25 mm) wide.6.4 Spatter Catch Paper, 18 by 18 in. (455 by 455 mm).This paper can be any convenient paper to which the spatterdroplets will adhere and of a color to contrast that of the paintunder test.7. Sampling and Conditioning7.1

17、Sample the material in accordance with PracticeD 3925.7.2 Prior to testing, the samples shall be conditioned inaccordance with the standard atmosphere described in Speci-fication D 3924. The testing shall take place under the sameconditions.8. Procedure8.1 Clean the top of the glass plate and both s

18、ides of theblack plastic panel to ensure that they are free of specks. Placethe black plastic panel on the glass plate and tape the narrowend at the top to the glass plate. Smooth the panel along theplate to ensure a close fit.8.2 Stir the paint under test thoroughly and strain to removeall skins an

19、d particles. Place the film caster with the 7.0-mil(175-m) side down immediately below the taped portion ofthe black plastic panel. Turn on the metronome. Into the wellformed by the film caster, pour sufficient paint that the well isfilled from corner to corner. Draw down the paint the fulllength of

20、 the black plastic panel until the film caster is fullybeyond the far edge. The rate of application should be fairlyslow, 3 to 4 s. from end to end, to prevent pinholes or holidaysin the paint film.8.3 Immediately upon completion of the draw-down, re-move the black plastic panel from the glass plate

21、, keeping themasking tape intact, and tape, with the long direction verticalto a surface that is vertical or nearly vertical (within 5 ofvertical, top sloping away from the operator) with the bottomof the black plastic panel about 1 in. (25 mm) above thelaboratory bench or table (Fig. 2). It is desi

22、rable that the surfaceunder the black plastic panel be firm but with a little resilience.6The sole source of supply of the dull black plastic panels, Leneta P-121-10N,612 by 17 in. by 10 mil (production tolerance 61 mil) (165 by 430 by 250 m) insize known to the committee at this time is Leneta Comp

23、any, 15 Whitney Rd.,Mahwah, NJ 07430. If you are aware of altenative suppliers, please provide thisinformation to ASTM International Headquarters. Your comments will receivecareful consideration at a meeting of the responsible technical committee,1whichyou may addend.Dimensionsin. mmA Flange thickne

24、ss 0.0636 0.005 1.60 6 0.13B Space between flanges 0.343 6 0.005 8.716 0.13C Total diameter 1.6006 0.015 40.16 6 0.38D Diameter under notches 1.400 6 0.015 35.56 6 0.38E Hole diameter 0.281 6 0.005 7.14 6 0.13FIG. 1 Notched Spool RollerD 4707 97 (2003)e12A backing of14-in. (6-mm) thick fiberboard is

25、 ideal as veryhard surfaces make proper performance of the test difficult.Center the spatter catch paper on the laboratory bench or tableunder the black plastic panel.8.4 Using the clean, notched spool roller, start in one of theupper corners and roll downward and upward through the paintfilm. Alway

26、s keep the notched spool in contact with the blackplastic panel, not removing the roller from the film whenchanging directions. Make ten passes in each direction (20passes total), 15 612 in. (380 6 15 mm) per pass, progres-sively moving sideways from one edge of the film to the other(Fig. 3). Each p

27、ass should coincide with a beat of themetronome and the motion should be continuous, not jerky. Tryto emulate the motion of the metronome, using the metronomefor accurate timing (practice the motion with the metronome togain the necessary rhythm and timing), since the speed of therolling of the notc

28、hed spool roller through the paint film hasbeen found to be the only variable significantly affecting theresults of the test. Make sure that all four flanges of the notchedspool roller are within the draw-down area at all times. Usesufficient pressure to maintain constant contact between thenotched

29、spool roller and the black plastic panel. Note that aslong as constant contact is maintained, pressure variations havenot been found to affect the results noticeably.8.5 Remove the spatter catch paper and lay it in a suitableplace to dry.8.6 Repeat the test with a second plastic panel after cleaning

30、the apparatus.9. Grading Procedure9.1 Carefully cut an area 712 by 912 in. (190 by 240 mm)out of the front edge (edge nearest the paint) of the spattercatch paper. The 712-in. side will be the front edge. Center thearea with respect to the spatter so a maximum of spatter is onthis sheet (Fig. 4).9.2

31、 Compare the cut-out area to the pictorial standards.Assign the rating that most closely matches a standard,interpolating as needed for ratings (0poor spatter resistance,2, 4, 6, 8, and 10no spatter).NOTE 1Figs. 5-9 are duplications thereof for sample purposes and arenot meant to be used for test gr

32、ading purposes.9.3 In rating the paints using the photographic standards,consider the population of spatter droplets of greater impor-tance than the average size of the spatter droplets.9.4 If the ratings of two tests do not agree within 1 unit,repeat until such precision is obtained.FIG. 2 Test Set

33、-Up SchematicDimensionsin. mmA Notched spool pass length 15 612 380 6 15B Drawdown width (determined byblade)514 140C Panel width 612 165D Panel length 17 430FIG. 3 Test Pattern SchematicD 4707 97 (2003)e1310. Precision and Bias10.1 In an interlaboratory study of this test method in whichone operato

34、r in each of three laboratories tested six paints witha broad range in spattering properties, one operator in twoother laboratories tested three of the paints and one operator inone laboratory tested only two paints, the between-laboratoriesstandard deviation was found to be 0.17 rating units (see N

35、ote2) with 18 df, with no results discarded. Based on this standarddeviation, the following criteria should be used for judging theacceptability of results at the 95 % confidence level:10.1.1 RepeatabilityIntralaboratory precision is normallybetter than interlaboratory precision. However, when ratin

36、g isinvolved, it is difficult to establish reliability because of thenatural tendency for bias when operators know the samematerial is being tested again.NOTE 2When the results were ranked, the agreement among the sixoperators was perfect. This might not occur if some paints with lessdistinct differ

37、ences in spattering properties were included in a similarstudy.10.1.2 ReproducibilityTwo results obtained by operatorsin different laboratories should be considered suspect if theydiffer by more than 0.5 units.10.2 BiasBias can not be determined for this test methodbecause there is no standard refer

38、ence material.11. Keywords11.1 paint spatter resistance; resistancepaint spatter;roller application; spatteringFIG. 4 Cutting Out Section of Spatter Catch paper for EvaluationD 4707 97 (2003)e14FIG. 5 Paint Spatter Resistance to Roller Application Rating Standard No. 1D 4707 97 (2003)e15FIG. 6 Paint

39、 Spatter Resistance to Roller Application Rating Standard No. 3D 4707 97 (2003)e16FIG. 7 Paint Spatter Resistance to Roller Application Rating Standard No. 5D 4707 97 (2003)e17FIG. 8 Paint Spatter Resistance to Roller Application Rating Standard No. 7D 4707 97 (2003)e18FIG. 9 Paint Spatter Resistanc

40、e to Roller Application Rating Standard No. 9D 4707 97 (2003)e19ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any suc

41、h patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invite

42、d either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a

43、fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 4707 97 (2003)e110