1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1990-11-02 EP00E01031541000 Released KW conc. J.SchultWP 3948-a Page 1 of 4 PAINT, ONE PACK, PLASTIC SUBSTRATES, INTERIOR WSK-M15J2-A1. SCOPEThe mat erial defined by this specification is an interio
2、r one pack paintfor plastic substrates.2. APPLICATIONThis spe cification was released originally for material used as one coatbaking paint for various interior applications.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStanda rd Q-101. A mutu
3、ally 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 SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Compan
4、y, 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 thedesignated material lab oratory. All samples shall
5、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 +/- 5 % relativehumidity for not less than 24 h prior t
6、o testing and tested under thesame conditions unless otherwise specified.3.4 COMPOSITION3.4.1 Resin: Synthetic resins without Nitrocellulose.3.4.2 Pigments: Pigments to obtain the desired colour andproperties.ENGINEERING MATERIAL SPECIFICATIONWSK-M15J2-AWP 3948-b Page 2 of 4 3.4.3 Solvent Emissions
7、see Initial Sample(ASTM D 3960) +/- 1 %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 Initial Sample +/- 1 %(FLTM BI 102-01)The non volatile c
8、ontent varies depending on the colour:Black and dark colours: min 30 %Other colours: min 35 %White: min 40 %The n on-volatile content shall be determined at a sprayviscosity of 20 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 Ini
9、tial Sample +/- 5 s(FLTM BI 111-01)3.5.4 Spray Viscosity as 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 Dry Hiding Power, max 20 micrometre(FLTM BI 158-01)3.5.6 Storage Stability 90 daysDuri ng a stora
10、ge 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 SubstrateABS, Polycarbonate, Polypropylene, Polyamide, etc. asspecified on Engineeri
11、ng Drawing.Note: PP/EPDM plastics must be primed with an ad hesion primerprior to painting.ENGINEERING MATERIAL SPECIFICATIONWSK-M15J2-AWP 3948-b Page 3 of 4 3.6.2 Plastic PreparationThe surface to be painted shall be cleaned by an acceptablepr ocess, e.g. power wash, to remove mold releasing agents
12、,fingerprints, oils, dirt and moisture.3.6.3 Primer (not mandatory, only if required.)Application of a primer surfacer, film thickness and bakingas specified in the relevant material specification.3.6.4 Topcoat applicationDry film thickness: 20 - 25 micrometre;Flash off time: 5 minutes;Baking: 15 mi
13、nutes at 80 C (Object temperature)3.6.5 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, grain and surface finish shall match master TrimSample and/or Master A
14、ppearance Sample as approved by Design.3.7.1 Colour see MAS - Panel(FLTM BI 109-01)3.7.2 Gloss see MAS - Panel(FLTM BI 110-01, 60 deg)3.8 RESISTANCE PROPERTIESTest Panels and painted plastic parts prepared according to thisspecification shall meet all requirements of performancespecification WSK-M2P
15、161-A.3.9 QUALITYThe topcoat must be ada ptable for application in accordance with theappropriate Ford Motor Company Process Specification.The topcoat must be compatible with all related materials.3.10 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l cha
16、racteristics to the material upon which approval wasoriginally granted.ENGINEERING MATERIAL SPECIFICATIONWSK-M15J2-AWP 3948-b Page 4 of 4 Pr ior to making any changes in the properties, composition,co nstruction, color, processing or labelling of the materialorig inally approved under this specifica
17、tion, 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 Materials Engineeringactivity. Test dat
18、a, 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 WS S-M99P9999-A1, unlessa different suffix
19、 (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. Suppliers desiring approval ofthe ir materials shall first obtain an expression o
20、f 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 results, notnominal values), the material designation and code number, and te
21、stspecimen 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
