1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Changes 2009 06 24 N-STATUS Replaced by WSS-M2P180-C C. Mracna, NA 1992 02 18 NC00E10079772017 Revised 3.4.1, 3.4.2 R.W. Ocobock 1989 09 19 NC0DE10025684003 Released R.W. Ocobock G. Greene WP 3948-a Page 1 of 7 PAINT,
2、 TWO COMPONENT, COLOR AND CLEAR COAT FOR ESA-M16J9-A1 PLASTIC SUBSTRATES, FIRST SURFACE EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a pigmented or clear two component enamel suitable for surface application to plastic substrates without the aid of a
3、primer. 2. APPLICATION This specification was released originally for paint and/or clear coating used as a first surface finish for plastic wheel cover and ornaments. 3. REQUIREMENTS 3.1 STATISTICAL PROCESS Suppliers must conform to the requirements of Ford Quality System Standard Q-101. A mutually
4、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 continuously reduced. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company,
5、 at its option, may conduct infrared and/or thermal analysis of material/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 designated material laboratory. All samples shall pr
6、oduce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. 3.3 COMPOSITION The material shall be a two component urethane enamel, pigmented and/or clear to match the desired color. The material shall be properly formulated to provide good adhesi
7、on without crazing or damaging the plastic substrate in any manner. 3.4 PHYSICAL PROPERTIES 3.4.1 Non-volatile solids, min 35 (FLTM BI 2-1) ENGINEERING MATERIAL SPECIFICATION ESA-M16J9-A1 WP 3948-b Page 2 of 7 3.4.2 Viscosity, min As recommended by Supplier (FLTM BI 11-2 or #2 Zahn Cup) 3.4.3 Stabil
8、ity (FLTM BI 2-3) The uncatalyzed material shall not liver or jell upon standing and must be free from settling which is not dispersed by normal agitation. The viscosity of the material shall not increase more than 10 s. 3.4.4 Hiding (FLTM BI 1-1) Solid colors shall provide complete opacity at 35 mi
9、crometre film thickness. Translucent colors shall be equal to approved samples. 3.5 PREPARATION OF TEST PANELS (FLTM BI 3-2, Method “E“, except use plastic in place of steel) In addition to the requirements in the test method, the following shall apply: 3.5.1 Substrate (see para 5.3) 3.5.2 Reducing
10、Thinner As recommended by supplier 3.5.3 Spray Viscosity As recommended by (FLTM BI 11-2, #4 supplier Ford Cup) 3.5.4 Film Thickness, min Color 20 micrometre (FLTM BI 17-1) Clear 25 micrometre 3.5.5 Drying Material must be dried in an oven at 76 +/- 2 C for 30 minutes. 3.5.6 Aging All panels shall b
11、e aged 72 h min at 23 +/- 2 C before testing. 3.6 APPEARANCE 3.6.1 Color The color shall match the Ford Motor Company master panel approved by Styling. 3.6.2 Gloss, 60 degree (FLTM BI 110-01) The gloss shall be specified by means of a letter suffix to the color ENGINEERING MATERIAL SPECIFICATION ESA
12、-M16J9-A1 WP 3948-b Page 3 of 7 number assigned by Styling, as follows: A - 92 min D - 62 +/- 3 G - 20 +/- 3 B - 80 +/- 4 E - 50 +/- 3 H - 10 +/- 3 C - 70 +/- 4 F - 35 +/- 3 J - 6 max 3.6.3 General The material, when properly applied, shall dry to a smooth homogeneous film, free from mottling, pitti
13、ng or excessive orange peel. 3.7 FILM PROPERTIES 3.7.1 Adhesion No chipping or (FLTM BI 106-01) flaking 3.7.2 Cold Impact A painted panel of the appropriate substrate shall exhibit no less than 80 % of impact resistance of an identical unpainted paned at -29 C. Test Method: Use impact apparatus from
14、 FLTM BI 8-1. Maintain test apparatus and panels at -29 C for 4h min. Report impact in J necessary to fracture both painted and control panels. 3.8 RESISTANCE PROPERTIES 3.8.1 Abrasion Resistance (FLTM BN 8-2) 3000 cycles minimum per 25 micrometre film thickness using CS-10 wheels and 500 g load. EN
15、GINEERING MATERIAL SPECIFICATION ESA-M16J9-A1 WP 3948-b Page 4 of 7 3.8.2 Water Resistance, min 240 h (FLTM BI 4-1) Test Method: Immerse the panels in distilled or deionized water maintained at 32 +/- 1 C. Remove parts from the water and immediately scribe an X with a carbide scribe through the mate
16、rial to the substrate. Dry the scribed area with a paper towel, cloth or air pressure and immediately apply, with firm thumb pressure, a minimum of 13 cm2 of ESF-M3G48-A tape. Remove the tape by pulling one end at a 90 deg angle at a moderate speed. The following conditions shall be basis for reject
17、ion: Removal of paint from any scribe line. Any discoloration or loss of gloss. Any evidence of blistering after tape removal. 3.8.3 Thermal Shock Resistance No blistering or (FLTM BI 7-5) loss of adhesion 3.8.3.1 4 h water immersion 3.8.3.2 4 h min exposure at -29 C 3.8.3.3 Within 30 s of removal f
18、rom cold environment, direct steam blast on scribed X at a 45 deg angle 50 - 70 mm from panel for 30 s minimum. 3.8.4 Resistance to Water and Soap Spotting (FLTM BI 113-01, colorimeter is omitted) No dulling or color change allowed. 3.8.5 Resistance to Acid Spotting (FLTM BI 13-2, colorimeter is omi
19、tted) No dulling or color change allowed. 3.8.6 Gasoline Resistance No softening, dulling color transfer, or color change allowed. Test Method: Place the painted panel in a 600 mL beaker half full of M14J503-A Petroleum Naphtha-Aliphatic type for 1 h at 23 +/- 2 C. Wipe the panel with a soft cloth a
20、nd examine the cloth for evidence of color transfer and the paint film for evidence of degradation. ENGINEERING MATERIAL SPECIFICATION ESA-M16J9-A1 WP 3948-b Page 5 of 7 3.8.7 Weathering Resistance Panels prepared in accordance with para 3.5 shall show a minimum degree of fading, chalking or loss of
21、 gloss. No increase of brittlement or loss of adhesion is permitted and panels shall be completely free from evidence of cracking, checking, blistering or peeling when exposed as follows: Accelerated Weathering 400 h (FLTM BO 1-1) Florida exposure (Miami Area), min 12 months at 5 deg facing south. 3
22、.8.8 Water Resistance After Weathering After panels have been subjected to either Florida or Weatherometer exposure as specified in para 3.8.7, they shall be tested for 24 h water resistance as described in para 3.8.2. Peeling of the paint film from the scribe mark shall be cause for rejection. Exam
23、ine for blistering. General blistering is considered failure. 3.8.9 Chip Resistance (SAE J400) Chipping shall not exceed Fig. 4B, after 10 pts of gravel. Test panels are to be examined after one pint of gravel has been applied. An additional four pints of gravel are applied and the test panels are a
24、gain examined. An additional five pints of gravel are applied and the test panels are again examined. 3.9 REPAIR REQUIREMENTS 3.9.1 Repair Color Match (FLTM BI 15-1) Conduct test as described in Method, except that the repair bake will be the maximum bake defined in para 3.5.5. There shall be a sati
25、sfactory color match of the panel prepared using only one standard bake. 3.9.2 Repair, Catalyzed Chipping, flaking or loss of (FLTM BI 106-01, Part B) adhesion shall not exceed Fig 2 of Test Method. No delamination of clearcoat from basecoat is permitted. ENGINEERING MATERIAL SPECIFICATION ESA-M16J9
26、-A1 WP 3948-b Page 6 of 7 3.9.3 Intercoat Adhesion No chipping, flaking, loss of (FLTM BI 106-01, Part A) adhesion or delamination of clearcoat is allowed. (FLTM BI 106-01, Part B) Chipping, flaking, or loss of adhesion shall not exceed Fig 2 of Test Method. No delamination of clearcoat from basecoa
27、t is permitted. 3.9.4 Repair, Clear Coat Clear coat must be buffable to polish out surface imperfections. 3.10 SUPPLIERS RESPONSIBILITY All materials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making a
28、ny 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 the specification requirements, the Supplier shall notify Purchasing, Toxicology and th
29、e 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 with the request. Substance restrictions imposed by law, regulations or Ford, apply to th
30、e 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 the application. 4. APPROVAL OF MATERIALS Materials defined by this specification must h
31、ave prior approval by the responsible Materials Engineering activity. Suppliers desiring approval of their materials shall first obtain an expression of interest from the affected Purchasing, Design and Materials Engineering activity. Upon request, the Supplier shall submit to the affected Materials
32、 Engineering activity its own laboratory report to the specification (test results, not nominal values), the material designation and code number, and test specimens for Ford evaluation. Upon approval, the material will be added to the Engineering Material Approved Source List. ENGINEERING MATERIAL
33、SPECIFICATION ESA-M16J9-A1 WP 3948-b Page 7 of 7 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 FLASH POINT Below 27 C 5.2 FLAMMABILITY This material represents a potential fire hazard. The Manufa
34、cturing Engineering Department shall notify both the Plant Security and the Safety Units of its presence in the Plant to assure that proper fire precautions are provided. The location in which it is used or stored shall be included in the notifications. 5.3 MATERIAL REFERENCE ESB-M4D241-B PLATING GRADE ABS ESB-M4D413-A2 ABS/PC ALLOY ESB-M4D585-A ABS/PC BLEND WSA-M4D688-A ABS/PC BLEND
