1、Designation: D4707 09 (Reapproved 2013)Standard Test Method forMeasuring Paint Spatter Resistance During RollerApplication1This standard is issued under the fixed designation D4707; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, t
2、he year of last 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 test method covers the determination of the ten-dency of a paint to spatter when applied with a paint
3、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 determine the applica-bility of regulatory limitations prior t
4、o use.2. Referenced Documents2.1 ASTM Standards:2D3924 Specification for Environment for Conditioning andTesting Paint, Varnish, Lacquer, and Related MaterialsD3925 Practice for Sampling Liquid Paints and RelatedPigmented Coatings2.2 Other Document:Pictorial Standards of Paint Roller Spatter33. Summ
5、ary 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 designed notched spool roller(see 5.1) is rolled through the film follo
6、wing 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 is depen-dent on the properties of both the paint being applied and
7、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 standard notched spool rollerto generate spatter by a mechanism that
8、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-reduciblepaints.4.3 Tests during the development of this test methodshowed that t
9、he 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).4,55.2 Glass Plateat least 230 by 485 mm (9 by 19 in.) by 6mm (0.25 in.) thick
10、.5.3 U-shaped Film Caster,6,5having a 175-m (7-mil) clear-ance by 135 mm (5.25 in.) wide.5.4 Metronome, adjusted to 80 beats per min.6. Materials6.1 Black Plastic Panels,7,5165 by 430 mm (6.5 by 17 in.).6.2 Flannel Cloth.1This test method is under the jurisdiction of ASTM Committee D01 on Paintand R
11、elated Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.42 on Architectural Coatings.Current edition approved July 1, 2013. Published July 2013. Originally approvedin 1987. Last previous edition approved in 2009 as D4707 09. DOI: 10.1520/D4707-09R13.2For refe
12、renced 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.3Copies of the pictorial photographic reference standards are containe
13、d 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 for the notched spool test roller known to thecommittee at this time is Precision Gage and Tool Co., 28 Volkenan
14、d Ave., Dayton,OH 45410.5If you are aware of alternative suppliers, please provide this information toASTM International Headquarters. Your comments will receive careful consider-ation at a meeting of the responsible technical committee,1which you may attend.6The sole source of supply for the Dow fi
15、lm caster known to the committee atthis time is BYKGardner, Inc., Gardner Laboratory, 2435 Linden Lane, SilverSpring, MD 20910.7The sole source of supply for 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 th
16、e committee at this time is Leneta Company, 15 Whitney Rd.,Mahwah, NJ 07430.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16.3 Masking Tape, 25 mm (1 in.) wide.6.4 Spatter Catch Paper, minimum size 190 by 240 mm (7.5by 9.5 in.). This
17、 paper can be any convenient paper to whichthe spatter droplets will adhere and of a color to contrast thatof the paint under test.7. Sampling and Conditioning7.1 Sample the material in accordance with Practice D3925.7.2 Prior to testing, the samples shall be conditioned inaccordance with the standa
18、rd atmosphere described in Speci-fication D3924. The testing shall take place under the sameconditions.8. Procedure8.1 Clean the top of the glass plate and both sides of theblack plastic panel to ensure that they are free of specks. Placethe black plastic panel on the glass plate and tape the narrow
19、end 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 and particles. Place the film caster with the 175-m(7.0-mil) side down immediately below the taped portion of theblack plastic panel. Turn o
20、n 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 the black plastic panel until the film caster is fullybeyond the far edge. The rate of application should be fairlyslow, 3 to 4 seconds f
21、rom end to end, to prevent pinholes orholidays in the paint film.8.3 Immediately upon completion of the draw-down, re-move the black plastic panel from the glass plate, keeping themasking tape intact, and tape, with the long direction verticalto a surface that is vertical or nearly vertical (within
22、5 ofvertical, top sloping away from the operator) with the bottomof the black plastic panel about 25 mm (1 in.) above thelaboratory bench or table (Fig. 2). It is desirable that the surfaceunder the black plastic panel be firm but with a little resilience.A backing of 6-mm (14-in.) thick fiberboard
23、is 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 with the short side of the catchpaper closest to the black plastic panel.8.4 Using the clean, notched spool roller, start in one of
24、 theupper corners and roll downward and upward through the paintfilm. Always 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), 380 6 15 mm (15 612 in.) per pass, progres-si
25、vely moving sideways from one edge of the film to the other(Fig. 3). Each pass should coincide with a beat of theDimensionsin. mmA Flange thickness 0.063 0.005 1.60 0.13B Space between flanges 0.343 0.005 8.71 0.13C Total diameter 1.600 0.015 40.16 0.38D Diameter under notches 1.400 0.015 35.56 0.38
26、E Hole diameter 0.281 0.005 7.14 0.13FIG. 1 Notched Spool RollerD4707 09 (2013)2metronome and the motion should be continuous, not jerky.Use the metronome for accurate timing since the speed of therolling of the notched spool roller through the paint film hasbeen found to be the only variable signif
27、icantly 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 spool roller and the black plastic panel. Note that aslong as constant contact is ma
28、intained, 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 cleaningthe apparatus.9. Grading Procedure9.1 Carefully cut an area 190 by 240 mm (7.5 by 9.
29、5 in.) outof the front edge (edge nearest the paint) of the spatter catchpaper. The shorter side will be the front edge. Center the areawith respect to the spatter so a maximum of spatter is on thissheet (Fig. 4).9.2 Compare the cut-out area to the pictorial standards.Assign the rating that most clo
30、sely 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 grading purposes.9.3 In rating the paints using the photographic standards,consider th
31、e 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-Up SchematicDimensionsin. mmA Notched spool pass length 15 12 38015B Drawdown width
32、 (determined byblade)514 140C Panel width 612 165D Panel length 17 430FIG. 3 Test Pattern SchematicFIG. 4 Cutting Out Section of Spatter Catch paper for EvaluationD4707 09 (2013)3FIG. 5 Paint Spatter Resistance to Roller Application Rating Standard No. 1D4707 09 (2013)4FIG. 6 Paint Spatter Resistanc
33、e to Roller Application Rating Standard No. 3D4707 09 (2013)5FIG. 7 Paint Spatter Resistance to Roller Application Rating Standard No. 5D4707 09 (2013)6FIG. 8 Paint Spatter Resistance to Roller Application Rating Standard No. 7D4707 09 (2013)7FIG. 9 Paint Spatter Resistance to Roller Application Rat
34、ing Standard No. 9D4707 09 (2013)810. Precision and Bias10.1 In an interlaboratory study of this test method in whichone operator 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 opera
35、tor inone laboratory tested only two paints, the between-laboratoriesstandard deviation was found to be 0.17 rating units (see Note2) 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 % conf
36、idence level:10.1.1 RepeatabilityIntralaboratory precision is normallybetter than interlaboratory precision. However, when rating 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 res
37、ults were ranked, the agreement among the sixoperators was perfect. This might not occur if some paints with lessdistinct differences in spattering properties were included in a similarstudy.10.1.2 ReproducibilityTwo results obtained by operatorsin different laboratories should be considered suspect
38、 if theydiffer by more than 0.5 units.10.2 BiasBias can not be determined for this test methodbecause there is no standard reference material.11. Keywords11.1 paint spatter resistance; resistancepaint spatter;roller application; spatteringASTM International takes no position respecting the validity
39、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 such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject t
40、o 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 invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.
41、 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 fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is
42、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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D4707 09 (2013)9
