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1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Changes 2008 10 28 N-STATUS Replaced by WSS-M1P83-C2, WSS-M2P180-C, WSS-M2P181-C, WSS-M98P13-B C. McComb, FNA 1996 03 25 Revised Upd.& Rev.para 3.5.5,3.12,3.14,Table 1 L.Rodigas 1990 06 01 Released EP00E01031536000 L.
2、Rodigas WP 3948-a Page 1 of 13 FINISHED PARTS, PLASTICS, EXTERIOR WSK-M98P6-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines performance requirements for finished exterior plastic parts consisting of various components and/or materials. The numerical values not defined within this
3、 document will be specified on this document table found on Engineering Drawing. 2. APPLICATION These parts are generally used for various exterior applications (e.g. radiator grilles, body side moldings, name plates) when specific part performance specifications are not established. 3. REQUIREMENTS
4、 General Definitions regarding Requirements and Test Methods. Based on the construction of the finished parts the requirements are divided into various material groups (see Table 1 for recommendation of requirements for different material groups). Test requirements vary in respect of application and
5、 are defined by the methods as specified (see Table 1). Specified test requirements (test conditions) are as specified on Engineering drawing for the finished part. Test according to para 3.4, 3.5, 3.6, 3.7, 3.8, 3.9 and 3.10 of Table 1 shall be carried out on the complete finished part or a represe
6、ntative section of the finished part containing all material groups. Each material group shall be evaluated separately. Surface requirements (from para 3.11 onwards) shall be tested separately for each material group (see Table 1). They shall be tested only if not already tested to individual materi
7、al specification requirements as quoted on Engineering Drawing. -,-,- ENGINEERING MATERIAL SPECIFICATION WSK-M98P6-A WP 3948-b Page 2 of 13 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to Quality System Requirements, QS-9000. Material specification requirements
8、are to be used for initial qualification of materials. A Control Plan for ongoing production verification is required. This plan must be reviewed and approved by the relevant Ford Materials activity and/or Ford Supplier Technical Assistance (STA) prior to production parts submission. Appropriate sta
9、tistical tools must be used to analyze process/product data and assure consistent processing of the materials. Part producers using this material in their products, must use Ford approved materials and must conform to a process control plan which has been approved by STA and/or the relevant Material
10、s Activity. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company, 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
11、 and shall be kept on file at the 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 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditio
12、ned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. 3.4 APPEARANCE (FLTM BI 109-01) Color, gloss and surface finish shall match the Master Appearance Sample as approved
13、by the Design Department. 3.5 ADHESION Adhesion shall be tested on the original part and 15 to 30 minutes after Heat Aging according to para 3.6. Test Methods: One of the following test method shall be chosen according to application and shown on Engineering Drawing. 3.5.1 Coating Adhesion No chippi
14、ng (FLTM BI 106-01, Method C) 3.5.2 Peel Strength As specified on (ASTM D 1000, evaluate plot Eng. Drawing according to ISO 6133, Figure 1) ENGINEERING MATERIAL SPECIFICATION WSK-M98P6-A WP 3948-b Page 3 of 13 3.5.3 Manual Separation The individual layers of material must not be separable from each
15、other by mechanical means without cohesive break. 3.5.4 Visual Evaluation The finished part shall show no evidence of blisters or delamination. 3.5.5 Bonding Adhesive Bonded parts must be tested in accordance with relevant and applicable adhesion requirements of tape performance specifications WSK-M
16、11P51-H (Emblems), WSK-M11P49-A (Body Side Moldings), WSK-M11P48-A (Weatherstrips) or as defined on Engineering Drawing. 3.6 HEAT AGING The finished part shall show no visible evidence of warpage, deformation, cracks, delamination or other failures to an extent that would affect its use in the ultim
17、ate assembly. There shall be no local shrinkage where the part has been gated which would interfere with assembly to relating parts, or affect its appearance. The finished part shall show no change in appearance when compared with the original part. The adhesion of the individual surface coating sha
18、ll meet the requirements of para 3.5. Test Methods: One of the following test conditions shall be chosen according to application and shown on Engineering Drawing. 3.6.1 Condition A Mount the finished part according to vehicle installation on a suitable fixture and place it in car position in a mech
19、anical convection oven maintained at 80 +/- 2 C for 7 days. Evaluate after conditioning at 23 +/- 2 C. 3.6.2 Condition B As under para 3.6.1, except use the unmounted part. 3.6.3 Condition C As under para 3.6.1, except maintain part at test temperature as specified on Engineering Drawing. 3.6.4 Cond
20、ition D As under para 3.6.1, except maintain the unmounted part at test temperature as specified on Engineering Drawing. -,-,- ENGINEERING MATERIAL SPECIFICATION WSK-M98P6-A WP 3948-b Page 4 of 13 3.7 PAINT REPAIR OVEN RESISTANCE (EAO only) The finished part shall show no evidence of deformation or
21、other changes which would interfere with asembly to mating part or affect its appearance. The adhesion of painting shall meet the requirements of para 3.5. 3.7.1 Condition A As under para 3.6.1, except maintain the mounted part at 120 +/- 2 C for 30 minutes. 3.7.2 Condition B As under para 3.6.1, ex
22、cept maintain the unmounted part at 120 +/- 2 C for 30 minutes. 3.8 ENVIRONMENTAL CYCLING (FLTM BQ 104-07) The finished part shall show no evidence of warpage, deformation, cracks, delamination or other failures to an extent that would affect its use in the ultimate assembly. The finished part shall
23、 show no changes in appearance when compared with the original finished part. The adhesion of the individual surface coating shall meet the requirements of para 3.5. Test Methods: The specific test procedure of FLTM BQ 104-07 has to be selected according to the application and shown on Engineering D
24、rawing. 3.9 RESISTANCE TO COLD IMPACT The finished part shall show no breaks, cracks or other failures. Test Methods: One of the following test conditions shall be defined according to application and shown on Engineering Drawing. 3.9.1 Condition A FLTM BO 151-01, Method B, except the finished part
25、shall be mounted as assembled in the vehicle in a suitable device and maintained at - 40 +/- 1 C for 16 h. The impact shall be carried out on areas regarded as most vulnerable in respect of shape and installation on the vehicle. Evaluate after conditioning to 23 +/- 2 C. 3.9.2 Condition B The mounte
26、d finished part shall be maintained as defined under para 3.9.1, except height of drop 300 mm. -,-,- ENGINEERING MATERIAL SPECIFICATION WSK-M98P6-A WP 3948-b Page 5 of 13 3.9.3 Condition C As under para 3.9.1, except use the unmounted part. 3.9.4 Condition D As under para 3.9.2, except use the unmou
27、nted part. 3.10 SHOCK TEST The finished part shall show no breaks, cracks or other failures. The adhesion of the individual surface coating shall meet the requirements of para 3.5. Test Method: Maintain the finished part or section of it at - 40 +/- 2 C for 16 h. Then immediately immerse part in wat
28、er at 70 +/- 2 C for 5 minutes. Evaluate after conditioning to 23 +/- 2 C. 3.11 RESISTANCE TO WEATHERING (Applicable to parts using materials without previous weathering approval) After exposure the part shall show no fading or color change in excess of specified AATCC rating (AATCC Gray Scale for E
29、valuating Change in Color, 10 step). In addition, there shall be no cracking, crazing or other deterioration. All initial approvals will be based on the preliminary Weatherometer exposure (para 3.11.1), pending Florida Exposure results for final approval. 3.11.1 Xenon Arc Weatherometer Rating 4 exce
30、pt (SAE J1960, Irradiation (in kJ/m2) Rating 4 - 5 for PP, as defined on Engineering Drawing) TPO and Ionomers 3.11.2 12 months Florida Rating 4 except (FLTM BI 160-01, 5 deg south, Rating 4 - 5 for PP, direct weathering inland) TPO and Ionomers 3.11.3 24 months Florida Rating 3 - 4 (FLTM BI 160-01,
31、 5 deg south, direct weathering inland) -,-,- ENGINEERING MATERIAL SPECIFICATION WSK-M98P6-A WP 3948-b Page 6 of 13 3.12 RESISTANCE TO SCRATCHING AND SURFACE DEFORMATION 3.12.1 Test Method A (FLTM BN 108-13, 1 mm scratch balls, instrumental evaluation of 3.0 N scratch mark) Percentage of Marking, ma
32、x 30 % or as defined on Engineering Drawing 3.12.2 Test Method B (FLTM BN 108-13, 1 mm scratch balls, visual evaluation) Rating 1 at 2 N scratch mark or as defined on Engineering Drawing. 3.13 RESISTANCE TO HOT WATER HIGH PRESSURE CLEANING The part shall show no delamination of surface coating or ot
33、her surface failures. Test Methods: One of the following test conditions shall be defined according to application and shown on Engineering Drawing. 3.13.1 Condition A (FLTM BO 160-04) 3.13.2 Condition B (FLTM BO 160-04, except test condition tbd) 3.13.3 Thermal Shock Resistance (FLTM BI 107-05) App
34、licable for thermoplastic polyolefin elastomers and/or modified polypropylene materials only. 3.14 RESISTANCE TO CHIPPING 3.14.1 Stone Chipping, max Rating 3 or as (FLTM BI 157-04, except water defined on immersion shall be omitted) Engineering Drawing 3.14.2 Steel Shot, max Rating 1 or as (FLTM BI
35、107-01, Gravelometer) defined on Engineering Drawing 3.14.3 Stone Shot, max Rating 2B or as (SAE J400, 10 cycles) defined on Engineering Drawing Applicable for group II, painted material parts only. -,-,- ENGINEERING MATERIAL SPECIFICATION WSK-M98P6-A WP 3948-b Page 7 of 13 3.15 RESISTANCE TO ABRASI
36、ON (FLTM BN 154-01, 1000 cycles) The abraded area shall be compatible with the adjacent unabraded area. Tests carried out on original parts and after heat aging (para 3.6) and environmental cycling (para 3.8). Applicable for group III, plastic, hot stamped/metallized/printed material parts only. 3.1
37、6 RESISTANCE TO WAXING AND DEWAXING COMPOUNDS (FLTM BO 155-01, except use acrylic system) The part shall show no breaks, cracks or other failures. The adhesion of the individual surface coating shall meet the requirements of para 3.5. 3.17 RESISTANCE TO WATER SPOTTING (FLTM BI 113-01, except soap so
38、lution shall be omitted) No change in color tone and/or gloss. 3.18 RESISTANCE TO ACID SPOTTING (FLTM BI 113-02) No change in color tone and/or gloss. Applicable for group II, painted parts only. 3.19 RESISTANCE TO WATER IMMERSION 240 h or as (FLTM BI 104-01) defined on Engineering Drawing The part
39、shall not show any surface changes, loss of gloss or adhesion. The adhesion of the individual surface shall meet the requirements of para 3.5. Applicable for group II, painted, group III, plastic/hot stamped/ metallized and group IV plastic/laminated parts only. 3.20 RESISTANCE TO CORROSION (CASS Te
40、st) (ASTM B 368, 24 h unless otherwise specified on Engineering Drawing) The part shall not show any surface changes, loss of gloss or adhesion. The adhesion of the individual surface shall meet the requirements of para 3.5. 3.20.1 Condition A (Evaluate according to FLTM BI 104-01) ENGINEERING MATER
41、IAL SPECIFICATION WSK-M98P6-A WP 3948-b Page 8 of 13 3.20.2 Condition B (Evaluate according to FLTM BI 104-01, except testing time and distance for evaluation as defined on Engineering Drawing) Applicable for group III, metallized parts only. 3.21 RESISTANCE TO WINDSHIELD WASHER FLUID The part shall
42、 show no breaks, cracks, blisters, surface changes or other failures. Test Method: FLTM BO 101-05, except test at 23 +/- 2 C, 2 cycles, mixture of 50 volume % isopropylalcohol and 50 volume % distilled water. 3.22 FUEL RESISTANCE (FLTM BO 101-05) The part shall show no breaks, cracks, blisters, surf
43、ace changes or other failures. The adhesion of the individual surface coating shall meet the requirements of para 3.5. Test Fuels: 3.22.1 85 % Fuel C + 15 % Methanol (ASTM D 471/ISO 1817) 3.22.2 Diesel Fuel (ISO 1817, Fuel F) 3.22.3 As specified on Engineering Drawing. 3.23 RESISTANCE TO CHROME NICK
44、EL CLEANERS The part shall show no cracks, color tone changes or other surface failures. Test Method: Treat the part or a section of it with released Motorcraft cleaners according to the directions of use. To remove left over cleaner, use released Motorcraft car shampoo according to the directions o
45、f use. Use a soft brush (natural bristles), rinse with tap water (30 - 40 C) and rub (using a soft cloth) until dry surface is achieved. Applicable for group III, metallized parts only. ENGINEERING MATERIAL SPECIFICATION WSK-M98P6-A WP 3948-b Page 9 of 13 3.24 ADHESIVE STAINING The part shall not sh
46、ow any change in color or staining. Test Method: The part shall be placed in the fluorescent sunlamp cabinet for 150 h. Examination shall be done after cooling to 23 +/- 2 C. Equipment according to FLTM BO 115-01. Applicable for group IV, laminated parts only. 3.25 PAINT STAINING (FLTM BP 153-01, Me
47、thod A) The contact material shall produce no stain or change in surface appearance on the painted panel beyond the boundaries of the test combination. Slight contact staining is permitted if not otherwise specified on Engineering Drawing. Note: Slight softening of contact area is permitted if not o
48、therwise specified on Engineering Drawing. 3.26 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 any change in the properties, composition, construction, color,
49、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 the affected Materials Engineering activity of the proposed changes and obtain the written approval of the