1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1990-08-01 EP00E01031538000 Released KW conc. J.SchultWP 3948-a Page 1 of 2 HARDENER, TWO PACK, 75 % SOLID CONTENT, EXTERIOR WSK-M99J359-A1. SCOPEThe material defined by this specification is a poly
2、isocyanate hardener.2. APPLICATIONThis specification was released originally for material used as hardenerfor two pack high flexible paint materials for plastic substrates.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStanda rd Q-101. A mutua
3、lly 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 Company
4、 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 p
5、roduce IR spectraand thermograms that correspond to the reference standard when testedunder the same conditions.3.3 CONDITIONINGAl l Tests according to this specification shall be performed in acontrolled atmosphere of 23 +/- 2 C and 50 - 65 % relative humidityif not otherwise specified.3.4 COMPOSIT
6、ION3.4.1 Resin: Modified Hexamethylene diisocyanate3.4.2 Solvent Emissions s ee 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.ENGINEERING MATERIAL SPECI
7、FICATIONWSK-M99J359-AWP 3948-b Page 2 of 2 3.5 MATERIAL PROPERTIES3.5.1 Non-volatile, min. 74 %(FLTM BI 102-01)3.5.2 Density s ee Initial Sample(ASTM D 1475) +/- 0,05 g/mL3.5.3 Viscosity as supplied s ee Initial Sample(FLTM BI 111-01) +/- 10 s3.5.4 Storage Stability: 90 daysDuri ng a storage of 90 d
8、ays between 5 and 32 C temperaturethe material as supplie d shall not change properties and theaged material must pass all specification requirements.3.6 QUALITYThe hardener must be co mpatible with all related paint materials. Ifpaint material is used in connection with this hardener, theresul ting
9、 paint must meet all requirements of the affected paintmaterial specification.3.7 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval wasoriginally granted.Pr ior to making any changes in the properties, c
10、omposition,co nstruction, color, processing 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 Engineeri
11、ng activity of the proposed changesand 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 docum
12、ent. The restrictions aredefined in Engineering 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 M
13、aterials Engineeri ng activity. Suppliers 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 results, 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.
