1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1996 07 22 Revised Revised para 3.8.1, Updated E. Nunez1991 07 31 NB00E10141534000 Revised, Added ESB-M36J1-A4 PAK MP1988 05 09 CAS1-AF108439 Released PAK MPWP 3948-a Page 1 of 15 ENAMEL, THERMOSET ACRYLIC BASECO
2、AT, ESB-M36J1-A1HIGH SOLIDS, WET-ON-WET PROCESS, EXTERIORENAMEL, THERMOSET 2-COMPONENT URETHANE ESB-M36J1-A2CLEARCOAT, 5 K.H.N. TUKON, HIGH SOLIDS,WET-ON-WET PROCESS, EXTERIOR ENAMEL, THERMOSET 2-COMPONENT URETHANE ESB-M36J1-A4CLEARCOAT, 10 K.H.N. TUKON, HIGH SOLIDS,WET-ON-WET PROCESS, EXTERIOR1. SC
3、OPEThe materials defined by these specifications are exteri or quality coatingswhich consist of an acrylic melamine pigmented basecoat and a two-componenturethane clearcoat. The baseco at provides the desirable styling color andthe clearcoat gives the durable glossy appearance. The c learcoat is spr
4、ayedover basecoat wet-on-wet and monobaked.2. APPLICATIONThese specifications were released for materials used as the topcoat finishon autom obile bodies, hoods, fenders and other exterior parts, and shallbe sat isfactory for use over current production primers, or electrocoats,or over previously ba
5、ked enamel, as in paint repair or t wo-tone operations.3. REQUIREMENTS3.1 QUALITY SYSTEM REQUIREMENTSMaterial suppliers and part producers must conform to Quality SystemRequirements, QS-9000. Material specification r equirements are to beused fo r initial qualification of materials. A Control Plan f
6、orong oing production verification is required. This plan must bereviewed and approved b y the relevant Ford Materials activity and/orFor d Supplier Technical Assistance (STA) prior to production partssubmission. Appropriate statistical tools must be used to analyzepr ocess/product data and assure c
7、onsistent processing of thematerials.Part producers using this material in their products, must use Fordapproved materials and must conform to a process control plan whichhas been approved by STA and/or the relevant Materials Activity.ENGINEERING MATERIAL SPECIFICATIONESB-M36J1-A1/A2/A4WP 3948-b Pag
8、e 2 of 15 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at its option, may conduct infrared and/ortherma l analysis of material/parts supplied to this specification.The IR spectra and thermograms established for i nitial approval shallconst itute the reference standard an
9、d shall be kept on file at thedesignated material laboratory. All samples sha ll produce IR spectraand thermograms that correspond to the reference standard when testedunder the same conditions.3.3 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on ma terial conditioned in
10、a control led atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested under thesame conditions unless otherwise specified.All parts shall be aged for 7 days at 23 +/- 2 C before testing forresistance properties unless otherwise specified.3.4 COMPOS
11、ITION3.4.1 ESB-M36J1-A1, BasecoatVehicle: The vehicle shall be a thermosetting sy stem which isa d urable wetting agent for pigments while providing goodadhesion to both primer and clearcoat.Ultraviolet Light Absorber and Stabilizer: The basecoat willcontain these compounds if required for long-ter
12、m durability.Pigments: Pigments are exterior automotive quality grades.The pigment blend shall provide a satisfactory c olor match tothe Ford master panel on file.3.4.2 ESB-M36J1-A2 & A4, ClearcoatVehicle: Thermosetting , two-component urethane system whichprovides high gloss, high DI and excellent
13、weatherability.Ultraviolet Light Absorber and Stabilizer: Clearcoat shallcontain absorber and/or hindered amine in sufficient amountto provide good long-term durability.3.4.3 Specific CompositionWhen i t is necessary to obtain specific data regardingmaterial formulation, it is understood that the su
14、pplier willfurnish such data on request.3.4.4 VolatileThe proportion of solvents in the paint shall be soformul ated that the enamel will level out satisfactorilywi thout sagging, popping, or roughness after baking at thespecified film thickness.ENGINEERING MATERIAL SPECIFICATIONESB-M36J1-A1/A2/A4WP
15、 3948-b Page 3 of 15 3.5 PHYSICAL PROPERTIES3.5.1 Volatile Organic Compou nds - Allowable weight at applicationviscosity (ASTM D 2369, Procedure B)3.5.1.1 Pigmented Basecoat ESB-M36J1-A1Solid Colors 0.47 kg/LMetallic Colors 0.47 kg/LThixotropic Colors 0.56 kg/LWhite 0.56 kg/L3.5.1.2 Clearcoat ESB-M3
16、6J1-A2 & A4 0.42 kg/L3.5.2 Viscosity(FLTM BI 111-01)3.5.2.1 Pigmented Basecoat ESB-M36J1-A116 +/- 4 sec. on #4 Ford Cup at 26 +/- 1 C3.5.2.2 Clearcoat ESB-M36J1-A2 & A430 +/- 4 sec. on #4 Ford Cup at 26 +/- 1 C for bothpolyol and isocynate component.3.5.3 Viscosity Stability(FLTM BI 103-02)3.5.3.1 S
17、helf StabilityPigmented Basecoat ESB-M36J1-A1A viscosity increase of more than 15 s on #4 Fordcup is not permitted after standing for 90 days atroom temperature of 26 +/- 1 C. In addition, thematerial shall not gel or liver and must be fr ee ofse ttling which cannot be dispersed by normalagitation.C
18、learcoat ESB-M36J1-A2 & A4Shall not gel, settle, or become turbid afterstanding for 90 days at room temperature of 26 +/-1 C. Viscosity incre ase of more than 15 s on a #4Ford Cup is not permitted. This applies to th e twocomponents stored separately.ENGINEERING MATERIAL SPECIFICATIONESB-M36J1-A1/A2
19、/A4WP 3948-b Page 4 of 15 3.5.3.2 Oven Stability (FLTM BI 102-03)Pigmented basecoat ESB-M36J1-A1After 16 hrs in a 60 +/- 1 C oven, the materialmust be free of settl ing which cannot be dispersedby normal agitation. A viscosity increase of morethan 15 s on a #4 Ford Cup is not permitted.Clearcoat ESB
20、-M36J1-A2 & A4Sh all not gel, or become seedy or turbid. Aviscosity increase of more than 15 s on a #4 FordCup is not permitted. This applies to the twocomponents stored separately.3.5.4 Dry Hiding(FLTM BI 101-05)Pigmented Basecoat ESB-M36J1-A1 15 - 25micrometer* When an exception to this hiding req
21、uirement is needed forspecial colors, concurrence must be obtained from Ford BodyEngineering and all other involved Ford activities.Th e basecoat is required to provide complete visual hidingover a black and gray straight-line hiding chart.3.5.4.1 Black and Gray Straight-Line Hiding Chart The hidi n
22、g chart shall measure 50 mm by 280 mm,consisting of a black stripe of 25 mm by 280 m m anda gray stripe of 25 m m by 280 mm in a side-by-sideconfiguration. 3.5.4.2 CIE L*a*b* Hiding Chart ValuesBlack: L* 25.74 +/- 0.80 a* -0.11 +/- 0.50 b* 0.58 +/- 0.60 Gray: L* 60.44 +/- 0.93 a* -1.32 +/- 0.06 b* 1
23、1.98 +/- 0.30 These values were obtained using the 10 degStandard Observer and Illuminant D65.ENGINEERING MATERIAL SPECIFICATIONESB-M36J1-A1/A2/A4WP 3948-b Page 5 of 15 3.5.4.3 Gloss of Black and Gray Stripes(FLTM BI 110-01, 20 deg glossmeter)Black Stripe 30 +/- 5Gray Stripe 30 +/- 53.6 PREPARATION
24、OF TEST PANELS3.6.1 SubstrateParker Bonderite 40 or equivalent - unpolished100 mm x 300 mm cold rolled steel panels.3.6.2 Electrocoat Primer3.6.2.1 Medium Build Cathodic Electrocoat PrimerPri me panels with current production CathodicElectrocoat primer to a minimum dry film thicknessof 20 micrometer
25、. The bake schedule is 10 min at182 C metal temperature.3.6.3 Spray PrimerApply current production spray primer over appropriatecurrent production cathodic electrocoat to a min imum dry filmthickness of 15 - 20 micrometer. The bake sched ule is 20 minat 163 C metal temperat ure for adhesion tests pe
26、r para 3.6.6and 20 minutes at 149 C (8 minutes minimum at 135 C metaltemperature) for all other tests.3.6.4 EnamelApp ly basecoat ESB-M36J1-A1 to a hiding thickness. Sprayclearcoat ESB-M36J1-A2 or ESB-M36J1-A4 to a dry filmthickness of 40 - 50 micrometer after the basecoat has beenflashed for 2 minu
27、tes. Bake per para 3.6.6 standard bake.3.6.5 Catalyzed RepairCata lyze basecoat ESB-M36J1-A1 with an approved catalystESB-M99J311-B. Prepare panels per para 3.6.1 through 3.6.4for st andard bake enamel. Mask the right half of panelsverti cally. Apply the catalyzed basecoat ESB-M36J1-A1 andclearcoat
28、ESB-M36J1-A2 or ESB-M36J1-A4. Remove the maskingtape, flash off for 5 m inutes and then bake 20 minutes at 99C (ambient temperature) with a minimum of 10 minutes at 99 Cmet al temperature. Touching, wiping or cleaning of panelsurface before recoat is not allowed.ENGINEERING MATERIAL SPECIFICATIONESB
29、-M36J1-A1/A2/A4WP 3948-b Page 6 of 15 3.6.6 Baking Schedules. Minimum enamel bake is 17 min at 124 C ambien t. A minimumof 10 min at 124 C metal temperature is required. Standard enamel bake is 17 min at 130 C ambient. A minimumof 10 min at 130 C metal temperature is required. Maximum enamel bake is
30、 20 min at 143 C metal temperature. Catalyzed enamel bake is 20 min at 99 C ambient. A minimumof 10 min at 99 C metal temperature is required.3.7 APPEARANCE3.7.1 Color(FLTM BI 109-01)Shall match the Ford master panel after all the baking cyclesdescribed in para 3.6.6.3.7.2 Gloss(FLTM BI 110-01, 20 G
31、lossmeter)Shall have a minimum reading of 90 for all colors.3.7.3 Distinctness of Image(FLTM BI 110-03)Shall have a minimum Di stinctness of Image reading of 90 forall colors.3.7.4 GeneralThe enamel shall be glo ssy and exhibit no craters, pinholes,solvent-popping, seediness, abnormal roughness or e
32、xcessiveflow.3.8 FILM PROPERTIES3.8.1 Film Thickness RequirementsBasecoat, ESB-M36J1-A1 15 - 25 micrometerClearcoat, ESB-M36J1-A2 & A4 40 - 50 micrometer3.8.2 Hardness, min (Clearcoat)(FLTM BI 112-01 and BI 112-02)ESB-M36J1-A2 ESB-M36J1-A4Tukon (1 h after bake) 5 K.H.N. 10 K.H.N.Hard ness requiremen
33、ts apply to both standard bake andcatalyzed repair bake.ENGINEERING MATERIAL SPECIFICATIONESB-M36J1-A1/A2/A4WP 3948-b Page 7 of 15 Hardness characteristics shall be that surface defects suchas airborne dirt, dry spray or overspray areas c an be removedby sanding and polishing.3.8.3 Adhesion3.8.3.1 S
34、cratch Test(FLTM BI 106-01, Part A)No c hipping or loss of adhesion of the clearcoatfrom the basecoat is permitted.Scribe Test(FLTM BI 106-01, Part B)Occu rrence of flaking, chipping or peeling shallnot exceed Fig 2 of Test Method.3.8.3.2 Chip Resistance(SAE J400)Chipping shall not exceed Fig 4B.3.8
35、.4 Bleeding(FLTM BI 114-01)None shall be permitted.3.9 REPAIR REQUIREMENTS3.9.1 Repair Color Match(FLTM BI 115-01)Conduct the test as described in the FLTM except that therepair bake will be the maximum bake defined in para 3.6.6.There shall be a satisf actory color match of the repair filmto both t
36、he rebaked original coating and to the singlestandard bake panel.Catalyzed Repair Color Match(FLTM BI 115-02)Prepar e panels per para 3.6.5. The catalyzed repair filmshall sh ow a satisfactory color match to the standard bakefilm.3.9.2 Catalyzed Repair Adhesion(FLTM BI 106-01, Part B)Chipping, flaki
37、ng, delamination or loss of adhes ion shall notexceed Fig 2 of the test method.ENGINEERING MATERIAL SPECIFICATIONESB-M36J1-A1/A2/A4WP 3948-b Page 8 of 15 3.9.3 Intercoat Adhesion(FLTM BI 106-01)Part A No ch ipping, flaking, loss of adhesion ordelamination of clearcoat is allowed.Part B Chipping, fla
38、king, delamination or loss of adh esionshall not exceed Fig 2 of test method.Prepare a panel using ESB-M36J1-A1/A2 or A4 as described inpara 3.6.6 maximum bake schedule. Cool the panel to roomtemperature after remov al from oven. No touching, wiping orcleani ng of panel before recoat is permitted. R
39、ecoat thepanel with the same material and bake as described in para3.6.6 minimum bake schedule.3.9.4 Two-tone AdhesionPrepar e a panel as described in para 3.9.3 but use twodifferent colors as described in the color program.3.9.5 Flash Primer Repair (ESB-M6J111-C)Materi al shall perform over Flash P
40、rimer as defined inESB-M6J111-C.3.10 RESISTANCE PROPERTIES FOR EXTERIOR APPLICATIONSThe following requirements apply to both the standard bake film andthe catalyzed repair film.3.10.1 Water Resistance (Controlled Condensation)(ASTM D 4585, 120 h at 43 C)Panels a re prepared per paras 3.6.1 through 3
41、.6.5. Afterpanels are removed from apparatus and wiped dry, an “X“, tobe located at the cente r of panel and 50 mm from the bottom,is scribed. This “X“ shall be 30 mm in height an d 20 mm wide.The scribed “X“ is then tape-pulled with 3M bran d 898-2 tape.Eval uate panels no less than 5 minutes and n
42、o more than 10minutes after removal from test, as the effects from waterexposure can change within a short time. Remove only as manypanels as can be rated within the specified time.There shall be no blistering, dulling, wrinkling or peelingof the paint film.No blistering, dulling, peeling or delamin
43、ation of thecoating is allowed.ENGINEERING MATERIAL SPECIFICATIONESB-M36J1-A1/A2/A4WP 3948-b Page 9 of 15 3.10.2 Water and Soap Spotting(FLTM BI 113-01)No spotting is permitted.3.10.3 Acid Spotting (FLTM BI 113-05)No spotting or discoloration is permitted.3.10.4 Environmental Fallout Spotting(Sulfur
44、ic Acid - pH 3.0)Panels are prepared per paras 3.6.1 through 3.6.6, and agedfor 24 h at ambient room temperature of 24 +/- 2 C prior totesting.Place a drop of 0.20 mL volume sulfuric acid test solution(pH 3.0) on both standa rd bake and catalyzed repair areas ofthe panels.The drops of sulfuric acid
45、test solution shall remain onpa nels for 24 h at ambient room temperature (panels areplaced i n a horizontal position to prevent any movement ofthe drops).Afte r completion of the 24 h duration period, panels arerinsed with tap water and blown dry with clean compressedair. Examine panels for etching
46、, discoloration, pitting, etc.The test enamel shall display resistance to chemical attackwhi ch is at least equal to currently available automotivecoat ings technologies. Any damage sustained by the testcoating sh all be such that the film can be returned to aserviceable, acceptable condition with m
47、inimal buffing,polishing etc. The test enamel shall be consideredunacceptable if repainting would be required to restore thefilm to a normal condition.3.10.5 Resistance to Xylene, Coolant Solutionand Windshield Washer SolutionThe test p anel should be aged for 72 h prior to testing.Using a circular
48、motion, rub the surface of the enamel 10times with a small wad of cheesecloth which has been wettedwith xylene, coolant so lution or windshield washer solution.No dulling, softening nor other undesirable effects arepermitted with any test fluid.ENGINEERING MATERIAL SPECIFICATIONESB-M36J1-A1/A2/A4WP
49、3948-b Page 10 of 15 3.10.6 Cracking Resistance(ISO 3231/DIN 50018 - SFW 2.0S)Test ing is conducted in an environmental test chamber(Kesternich-type apparatus) as defined by ISO 32 31/DIN 50018.The operation of the chamber during the test cycle shall beconducted in accordance with the procedures and requirmentsoutlined in the Standard.Upo n completion of required test cycles, the panels shallshow n o evidence of cracking, peeling, fissures or theformation of any film defects, in excess of thos e observed ona control panel, which could cause paint failures on
