1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1990-11-02 EP00E01031541000 Released KW conc. J.SchultWP 3948-a Page 1 of 4PAINT, TEXTURED, TWO PACK, PLASTIC SUBSTRATES,INTERIOR WSK-M15J5-A1. SCOPEThe material defined by this sp ecification is a flexible inter
2、ior texturedpaint fo r plastic parts. It must be cured with a suitable isocyanatehardener.2. APPLICATIONThis spe cification was released originally for material used as two packtextured paint for various interior applications.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requi
3、rements of Ford Quality SystemStanda rd Q-101. A mutually acceptable Control Plan as describedth erein is required for material/source approval. Appropriatestatist ical tools must be used to analyze process/product data sothat variation in the final product is continuously reduced.3.2 INFRARED SPECT
4、ROPHOTOMETRY 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 and shall be kept on file at t
5、hedesignated material lab oratory. All samples shall produce IR spectraand thermograms that correspond 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 +/
6、- 5 % relativehumidity for not less than 24 h prior to testing and tested under thesame conditions unless otherwise specified.3.4 COMPOSITION3.4.1 Resin: Synthetic polyhydroxy acrylicresins.3.4.2 Pigments: Pigments to obtain the desiredcolour, grain and properties.ENGINEERING MATERIAL SPECIFICATIONW
7、SK-M15J5-AWP 3948-b Page 2 of 4 3.4.3 Solvent Emissions see Initial Sample +/- 1 %(ASTM D 3960)This r equirement is as determined by the United StatesEnvironmental Protection Agency Reference Method #24 and isonly applicable to materials used in the USA.3.5 MATERIAL PROPERTIES3.5.1 Non-volatile see
8、Initial Sample +/- 1 %;(FLTM BI 102-01) min 50 %The n on-volatile content shall be determined at a sprayviscosity of 40 s according to para 3.5.4.3.5.2 Density see Initial Sample +/- 0,02 g/mL(ASTM D 1475)3.5.3 Viscosity as supplied see Initial Sample +/- 5 s(FLTM BI 111-01)3.5.4 Spray Viscosity as
9、specified by the supplier(FLTM BI 111-01, FC #4)The material can be reduced with Xylene (WSK-M14J239-A) andButyl acetate (WSK-M14J228-B).3.5.5 Mixing ratio as specified by the supplierThe material shall be cured with isocyanate hardenerWSK-M99J359-A or WSK-M99J360-A.3.5.6 Dry Hiding Power, max 30 mi
10、crometre(FLTM BI 158-01)3.5.7 Storage Stability 90 daysDuri ng a storage of 90 days between 5 and 32 C temperaturethe m aterial as supplied shall not settle up or cakeinsol uble. After the storage the material must pass allspecification requirements.3.6 PREPARATION OF TEST PANELS3.6.1 SubstratePolyc
11、arbonate, ABS, Polyamide, Polypropylene as required onEngineering Drawing.Note: PP/EPDM plastics must be primed with an ad hesion primerprior to painting.ENGINEERING MATERIAL SPECIFICATIONWSK-M15J5-AWP 3948-b Page 3 of 4 3.6.2 Plastic PreparationThe surface to be painted shall be cleaned by an accep
12、tablepr ocess, e.g. power wash, to remove mold releasing agents,fingerprints, oils, dirt and moisture.3.6.3 Primer Surfacer (not mandatory, only if required)Application of a primer surfacer, film thickness and bakingas specified in the relevant material specification.3.6.4 Top coat applicationDry fi
13、lm thickness: 30 - 35 micrometre;Flash off time: 3 minutes;Baking: 15 minutes at 80 C, 5 minutes at 130 C3.6.5 Ageing:Test 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 APPEARANCECol our, gloss,
14、 grain and surface finish shall match master TrimSample and/or Master Appearance Sample as approved by Design.3.7.1 Colour see MAS - Panel(FLTM BI 109-01)3.7.2 Gloss and GrainVisual matching with MAS - Panel.3.8 RESISTANCE PROPERTIESTest Panels and painted plastic parts prepared according to thisspe
15、cification shall meet all requirements of performancespecification WSK-M2P144-A.3.9 QUALITYThe top coat must be adaptable for application i n accordance with theappropriate Ford Motor Company Process Specification.The top coat must be compatible with all related materials.3.10 SUPPLIERS RESPONSIBILI
16、TYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval wasoriginally granted.ENGINEERING MATERIAL SPECIFICATIONWSK-M15J5-AWP 3948-b Page 4 of 4 Pr ior to making any changes in the properties, composition,co nstruction, color, proc
17、essing or labelling of the materialorig 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 changesan
18、d obtain the written approval of the 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 E
19、ngineering Material Specification WS S-M99P9999-A1, unlessa different suffix (e.g., A2 or A3) is specified on the engineeringdocument for the application.4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresponsible Materials Engineeri ng activity. Suppl
20、iers desiring approval ofthe ir materials shall first obtain an expression of interest from theaffect ed Purchasing, Design and Materials Engineering activity. Uponrequest, the supplier shall submit to the affected Materials Engineeringactivity its own laboratory rep ort to the specification (test r
21、esults, notnominal values), the material designation and code number, and testspecimen s for Ford evaluation. Upon approval, the material will be addedto the Engineering Material Approved Source 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 154-02) +/- 0,02 kg/L
