1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1993 09 01 EP00E10258825000 Revised 3.5.1, minor changes KW1992 06 01 EP00E10176270000 Version A3 added, revised colour paragraph1991-01-02 C01089480 Released KWWP 3948-a Page 1 of 6PAINT, WATER BASED, ENGINES AN
2、D ENGINE ACCESSORIES WSK-M62J29-A1PAINT, WATER BASED, ENGINES AND ENGINE ACCESSORIES, WSK-M62J29-A2BRUSH APPLICATIONPAINT, WATER BASED, ENGINES AND ENGINE ACCESSORIES, WSK-M62J29-A3200 C TEMPERATURE RESISTANCE1. SCOPEThe materials defined by these specifications are air drying engine paintsfor nomin
3、al 20 micrometre film thickness.2. APPLICATIONThese specifications were released originally for materials used forvariou s applications within the engine compartment such as engine blocks,components, fasteners etc., made from castings or sheet steel.WSK-M62J29-A1/-A3: The materials are suitable for
4、electr ostatic and airlessspray application.WSK-M6 2J29-A2: The material is suitable for brush application in case ofspot repair.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStand ard Q-101. A mutually acceptable Control Plan as describedthe
5、rein is required for material/source approval. Appropriate sta-tistical tools must be used to analyze process/product data so thatvariation in the final product is continuously reduced.3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at its option, may conduct infrared and/o
6、rtherma l analysis of material/parts supplied to this specification.The IR spectra and thermograms established for i nitial approval shallconst itute the reference standard and shall be kept on file at thedesignated material laboratory. All samples sha ll produce IR spectraand thermograms that corre
7、spond to the reference standard when testedunder the same conditions.3.3 CONDITIONINGAll test values indicated herein are based on ma terial conditioned ina control led atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested under thesame condition
8、s unless otherwise specified.ENGINEERING MATERIAL SPECIFICATIONWSK-M62J29-A1/A2/A3WP 3948-b Page 2 of 5 3.4 COMPOSITION3.4.1 Resin: Water based synthetic resins.3.4.2 Pigments: Pigments to obtain the desiredproperties of the paint.3.5 MATERIAL PROPERTIES3.5.1 Non-volatile, min See Initial Sample(FLT
9、M BI 102-01) +/- 1 %Black 40 %Grey 42 %The non-volatile content shall be determined at applicationviscosity per 3.5.3.3.5.2 Density See Initial Sample(ASTM D 1475) +/- 0.02 g/mL3.5.3 Viscosity as supplied(FLTM BI 111-01, FC# 4)The material shall be s upplied in application-viscosity. Itmay be reduce
10、d with water.WSK-M62J29-A1/-A3 20 - 25 sWSK-M62J29-A2 100 - 120 s3.5.4 Content of Organic Solvents, max 10 %The content of organic solvents is defined as:Weight-% of organic solvents at spray viscosity.3.5.5 Dry Hiding Power, max 20 micrometre(FLTM BI 158-01)3.5.6 Storage Stability 90 daysDuring a s
11、torage between 5 and 32 C, the materia l as suppliedshall not settle up or cake insoluble. After th e storage thematerial must pass all specification requirements.3.6 PREPARATION OF TEST PANELS(FLTM BI 103-02, Method E)3.6.1 Substrate3.6.1.1 Routine investigations:- Non-phosphated Sta ndard Steel Pa
12、nels, accordingto Ford Manufacturing Standard U-MA18006.3.6.1.2 For Initial Approval only:- Original Castings as used in the plant.ENGINEERING MATERIAL SPECIFICATIONWSK-M62J29-A1/A2/A3WP 3948-b Page 3 of 5 3.6.2 Surface PreparationThe surface to be painted shall be cleaned by an acceptableprocess to
13、 remove fingerprints, oil, grease and dirt.3.6.3 Film Thickness (see also 5.2)(FLTM BI 117-01)WSK-M62J29-A1/-A3, min 15 - 20 micrometreWSK-M62J29-A2, min 20 micrometre3.6.4 Air Drying (see also 5.2)30 minutes at 23 +/- 2 C and 50 +/- 5 % relative humidity.Note:Infrared drying may also be used in pro
14、duction.After drying, the finis h shall be sufficiently hard to with-stand normal handling without damage.3.6.5 AgeingTest panels prepared under this specification shall be agedfor at least 72 h at 23 +/- 2 C or 16 h at 45 +/- 1 C beforetesting for resistance properties.3.7 APPEARANCE3.7.1 Colour Bl
15、ack or grey or as specified(FLTM BI 109-01) on Engineering DrawingVisual conformation wit h the original colour sample preparedfrom the Initial Sample.3.7.1 Gloss Black: 20 - 30 %(FLTM BI 110-01, 60 deg) Grey: 30 - 40 %3.8 RESISTANCE PROPERTIES3.8.1 Adhesion Grade 1(FLTM BI 106-01, Method B)3.8.2 Sa
16、lt Spray Resistance, min 48 h(FLTM BI 103-01)Steel panels per 3.6.1.1: No blistering, no rusting or lossof adhesion more than 3 mm from the scribed line.Pa rts per 3.6.1.2: No blistering, no rusting or loss ofadhesion. Castings shall not be scribed.ENGINEERING MATERIAL SPECIFICATIONWSK-M62J29-A1/A2/
17、A3WP 3948-b Page 4 of 5 3.8.3 Water Immersion Test 48 h(FLTM BI 104-01)No loss of adhesion, no loss of gloss and no blisteringaccepted. Slight blistering on castings may be accepted.3.9 HEAT RESISTANCEWSK-M62J29-A1/-A2: 1 h at 150 +/- 3 CWSK-M62J29-A3: 1 h at 200 +/- 3 CNo loss of adhesion per 3.8.1
18、, no flaking, no cracking accepted.Slight colour change may be accepted.3.10 RESISTANCE AGAINST HOT OIL(1 h immersion at 90 +/- 2 C)The test panel shall be immersed into current production engine oilas required. Evaluation one hour after test end.No blistering, no loss of adhesion and not more than
19、slight dullingand softening.3.11 SOLVENT RESISTANCE(FLTM BI 152-01)No blistering, no loss of adhesion and not more than slight dullingor softening accepted.3.12 RESISTANCE AGAINST COOLANT(1 h immersion at 70 +/- 2 C)Test panels shall be immersed into a mixture of 50 % water and 50 %coolant (SS-M97B9
20、103-A).No blistering, no loss of adhesion and not more than slight dullingor softening accepted.3.13 QUALITYThe pai nt must be adaptable for application in accordance with theappropriate Ford Motor Company Process Specification.3.14 SUPPLIERS RESPONSIBILITYAll materials supplied to this specificatio
21、n must be equivalent inal l characteristics to the material upon which approval wasoriginally granted.ENGINEERING MATERIAL SPECIFICATIONWSK-M62J29-A1/A2/A3WP 3948-b Page 5 of 5 Pr ior to making any changes in the properties, composition,co nstruction, color, processing or labelling of the materialor
22、ig inally approved under this specification, whether or not suchchange s affect the materials ability to meet the specificationrequir ements, the Supplier shall notify Purchasing, Toxicology andthe affected Materials Engineering activity of the proposed changesand obtain the written approval of the
23、Materials Engineeringactivity. Test data, test samples and a new code identification areto be submitted with the request.Substance restrictions imposed by law, regulations or Ford apply tothe mat erials addressed by this document. The restrictions aredefined in Engineering Material Specification WSS
24、-M99P9999-A1.4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresponsible Materials Engineeri ng activity. Suppliers desiring approval ofthe ir materials shall first obtain an expression of interest from theaffec ted Purchasing, Design and Materials Eng
25、ineering activity. Uponrequest, the Supplier shall submit to the affected Materials Engineeringactivity a completed copy of their laboratory test reports, signed by aqualified and authorized representative of the test faci lity, demonstratingful l compliance with all the requirements of this specifi
26、cation (testresults, not nominal values), the material designation a nd code number, andtes t specimens for Ford evaluation. Fords engineering approval of amateri al will be based on its performance to this specification and on anassessment of suitability for i ntended processes and/or applications.
27、 Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.5. GENERAL INFORMATIONThe information given below is provided for assistance and clarificationand does not represent requirement(s) to this specification.5.1 Density of the Dry Film See Initial Sample(FLTM BI
28、154-02) +/- 0.02 kg/L5.2 FILM THICKNESSThe f ilm thickness required in para 3.6.3 is for test purpose onlyand may deviate from the film thickness applied in production.The nominal film thickness is 20 micrometre. The minimum thicknessshall not fall below 10 micrometre.Application of paint in a film thickness more than 20 micrometre maygive the necessity to improve the drying conditi ons. These conditionsmust be determined during a line trial.Drying conditions must also be modified in case IR-drying is used.
