1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Release No. Release/Revision 2012 03 20 N Status No replacement named N. Benipal, NA 1991 03 01 EP00E01089482000 Released C E Herriott concurred J Schult WP 3948-a Page 1 of 5 PASTE FILLER WSK-M99J373-A NOT TO BE USED FOR NE
2、W DESIGN 1. SCOPE The material defined by this specification is a glazing paste filler. 2. APPLICATION This specification was released originally for material used for filling pits in solder filled areas on automobiles. 3. REQUIREMENTS 3.1 STATISTICAL PROCESS Suppliers must conform to the requiremen
3、ts of Ford Quality System Standard Q-101. A mutually acceptable Control Plan as described therein is required for material/source approval. Appropriate statistical tools must be used to analyze process/product data so that variation in the final product is continually reduced. 3.2 INFRARED SPECTROPH
4、OTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company in its option, may conduct infrared and/or thermal analysis of materials/parts supplied to this specification. The IR spectra and thermograms established for initial approval shall constitute the reference standard and shall be kept on file at the
5、designated Material Laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. 3.3 ULTRA VIOLET SPECTROGRAPHIC ANALYSIS (FLTM tbd) All approved materials shall contain with Initial Sample Report a UV-spectroscopic
6、 analysis. This shall be recorded and filed by Quality Control or relevant Testing Laboratories of the Ford Motor Company. Subsequent material UV-spectroscopic analysis shall correspond to the data of the Initial Sample. ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Rele
7、ase No. Release/Revision 2012 03 20 N Status No replacement named N. Benipal, NA 1991 03 01 EP00E01089482000 Released C E Herriott concurred J Schult WP 3948-a Page 1 of 5 3.4 CONDITIONING All panels shall be aged for 72 h at 23 +/- 2 C or 16 h at 43 +/- 2 C before testing for resistance properties
8、unless otherwise specified. In the event of differences between test results, the results after aging at room temperature shall govern. All tests according to this specification shall be performed in a controlled atmosphere of 23 +/- 2 C and 50 - 65 % relative humidity if not otherwise specified. 3.
9、5 COMPOSITION 3.5.1 Resin Suitable resin system 3.5.2 Pigment Zinc and other suitable materials to provide the physical and resistance properties of this specification. The material must contain an adequate amount of metallic and non-metallic pigment in order that electrocoating of material with For
10、d approved current electrocoat is possible. 3.5.3 Solvent Isopropyl Alcohol, (2-Propanol) 3.5.4 Specific Composition When it is necessary to obtain specific data regarding the material formulation, it is understood that the supplier will furnish such data on request. 3.5.5 Special Data All initial a
11、nd batch submissions must indicate density and non-volatile content as supplied on the sample report. ENGINEERING MATERIAL SPECIFICATION WSK-M99J373-A WP 3948-b Page 3 of 5 3.6 PHYSICAL PROPERTIES 3.6.1 Non-volatile Initial Sample (FLTM BI 102-01) +/- 1.0 % Minimum (total solid content) 80.0 % Minim
12、um pigment content 62.0 % (percent of non-volatiles) 3.6.2 Density Initial Sample +/- (ASTM D 1475) 0.02 g/mL 3.6.3 Viscosity (FLTM BI 111-01, Ford Cup 4, 25 C) Package Viscosity Stiff paste Reduced Viscosity Working paste (Isopropyl Alcohol or 2-Propanol) 3.6.4 Solvent Emissions, max 0.096 kg/L (AS
13、TM D 3960) This requirement is as determined by the United States Environmental Protection Agency Reference Method #24 but is only applicable to materials used in the USA. 3.6.5 Drying The material must air dry satisfactorily for sanding within 5 minutes of application. 3.7 PREPARATION OF TEST PANEL
14、S 3.7.1 Substrate Ford Engineering approved Standard Steel Test Panels 75 x 230 x 0.9 mm body steel panels. These panels are prepared by joining two 75 x 130 x 0.9 mm test panel together and spot welding across the width. Four spotwelds are necessary. ENGINEERING MATERIAL SPECIFICATION WSK-M99J373-A
15、 3.7.2 Apply solder to cover the welds to an area of 60 square cm. 3.7.3 Apply supplied filler material over the soldered area. 3.7.4 Phosphate coat with currently used Ford approved zinc phosphate to WSK-M3P1-C requirements. 3.7.5 Apply production glazing paste so that all the soldered area and par
16、ts of the steel are covered. 3.7.6 Electrocoat with currently used Ford approved electrocoat to specified film thickness. Bake according to production system. 3.7.7 Prime with currently used Ford approved primer surfacer, baked according to relevant material specification, and water sand with grade
17、360 paper to a dry film thickness aproximately 20 micrometres. 3.7.8 Top coat with currently used black Ford approved top coat, baked according to relevant material specification, dry film thickness aproximately 40 micrometres. 3.8 RESISTANCE PROPERTIES 3.8.1 Water Cycle Resistance 192 h Daily cycle
18、 the test panels through 16 h immersion in pure water at 50 C, then 8 h air dry at 23 +/- 2 C, for 8 cycles. No blistering, wrinkling, softening, dulling, colour change, and/or loss of adhesion. 3.9 SUPPLIERS RESPONSIBILITY All materials supplied to this specification must be equivalent in all chara
19、cteristics to the material upon which approval was originally granted. Prior to making any change in the properties, composition, construction, color, processing or labeling of the material originally approved under this specification, whether or not such changes affect the materials ability to meet
20、 the specification requirements, the Supplier shall notify Purchasing, Toxicology and the affected Materials Engineering activity of the proposed changes and obtain the written approval of the Materials Engineering activity. Test data, test samples and a new code identification are to be submitted w
21、ith the request. Substance restrictions imposed by law, regulations or Ford, apply to the materials addressed by this document. The restrictions are defined in Engineering Material Specification WSS-M99P9999-A1, unless a different suffix (e.g., A2 or A3) is specified on the engineering document for
22、the application. 4. APPROVAL OF MATERIALS Materials defined by this specification must have prior approval by the responsible Materials Engineering activity. Suppliers desiring approval of ENGINEERING MATERIAL SPECIFICATION WSK-M99J373-A Vehicles which are produced in NAAO: C-200 (F) General Painting C-600 (F) Electrocoat PL53-33 (F) Phosphate Vehicles which are produced in EAO: C-800 Painting - Process
