1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Ver. 2 2008 10 08 N-STATUS Replaced by WSS-M98P13-B K. Mueller, FNA 2006 08 15 Activated M. Myers Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of 4 EXTERIOR PLASTIC PERFORMANCE WSS-M98P13-A NOT TO BE USE
2、D FOR NEW DESIGN 1. SCOPE This specification defines the minimum durability and performance requirements of exterior molded in color plastic components. 2. APPLICATION This specification was released originally for exterior unpainted molded in color plastic components used in exterior subsystems inc
3、luding outside rearview mirror (OSRVM), cowl grilles and leaf screens (COWLVENT), exterior lighting (EXTLGT), bumpers (BUMPER), radiator grilles (RADGRL), door handles (DRLT), wipers (WIPER) and exterior ornamentation (EXTORN). All painted exterior components shall meet the requirements of WSS-M2P18
4、0-B for rigid substrates, WSS-M2P181-B for flexible substrates and WSS-M1P83-B2 for chrome plated rigid substrates. When specific properties of a coated substrate are not covered by these referenced performance specifications, test methods within this specification may be applied. 3. REQUIREMENTS Ma
5、terial specification requirements are to be used for initial qualification of materials. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). This specification is based
6、on virgin material only. The use of in-house regrind is not allowed unless the part is validated during PV testing with the documented level of regrind noted on the part drawing. 3.2 FINISHED PARTS Testing must be done on actual production parts or a section of the part whenever possible. Where part
7、 dimensions limit equipment access, representative panels or plaques may be substituted for production parts. 3.3 APPEARANCE (FLTM BI 109-01) The color, gloss, and finish shall match the approved Design Center master sample or shall be as specified on the engineering drawing. 3.4 PAINT REPAIR OVEN M
8、aterials used in all systems shall withstand a paint repair surface temperature of 115 C for 20 minutes without deformation, functional damage or loss of appearance or other specified physical characteristics. If material cannot meet this requirement it must be capable of being protected, e.g., with
9、 shielding, during repair oven processing of the vehicle. ENGINEERING MATERIAL SPECIFICATIONWSS-M98P13-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 4 3.5 HEAT AGING All parts shall be complete including all components packaged in the assembly (eg. mirror
10、glass and back, motor, etc. packaged into mirror shell and structure) and fastened onto actual or representative production support foundations that include not only all attaching points but also any boundary conditions that may restrict movement, unless otherwise specified by the affected Materials
11、 Engineering Activity. The retention methods, attachments and supporting moldings shall be the same as proposed for production. The heat aged part shall show no changes in appearance when compared with the original untested part. Gaps, margins and surface waviness must be within original vehicle des
12、ign tolerances after returning to ambient temperature. Test Procedure: The assembly and support foundation shall be placed in a mechanical convection oven maintained at 80+/- 2 C for 7 days. Evaluate after conditioning back to 23 +/- 2 C. 3.6 ENVIRONMENTAL TESTING (FLTM BQ 104-07, Procedure 1) All p
13、arts shall be complete including all components packaged in the assembly (eg. mirror glass and back, motor, etc. packaged into mirror shell and structure) and fastened onto actual or representative production support foundations that include not only all attaching points but also any boundary condit
14、ions that may restrict movement, unless otherwise specified by the affected Materials Engineering Activity. The retention methods, attachments and supporting moldings shall be the same as proposed for production. The cycled part shall show no changes in appearance when compared with the original unt
15、ested part. Gaps, margins and surface waviness must be within original vehicle design tolerances after returning to ambient temperature. Test Procedure All exterior subsystems will use 3 cycles of FLTM BQ 104-07 Procedure 1. 3.7 RESISTANCE PROPERTIES 3.7.1 Resistance to Cold Impact (Similar to FLTM
16、BO 151-01, Method B with 225g steel ball and 600mm drop) The impacted part shall show no evidence of cracking or breaking and shall fully recover from indentation in the time required for the assembly to return to 23 C. Test Procedure After conditioning as per FLTM BO 151-01, Method A steps 1 and 2
17、the finished part shall be mounted in a suitable device or buck simulating in vehicle position and surroundings and maintained at -40 +/- 1 C for 24 h. The impact shall be carried out on areas regarded as most vulnerable in respect of shape and installation on the vehicle and shall be indicated by t
18、he design responsible engineer and documented in the DVP. Components such as body-side moldings may be rotated 90 to simulate horizontal impact. ENGINEERING MATERIAL SPECIFICATIONWSS-M98P13-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 3 of 4 3.7.2 Resistance t
19、o Exterior Weathering - Accelerated (Sample shall be cut from production part) After exposure in accordance with 3.7.2.1 the material shall show no color change in excess of the specified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 105-A02). In addition, there shall be no cracking, crazing o
20、r other deterioration. 3.7.2.1 Xenon Arc Weatherometer Rating 4, (SAE J1960 modified Type “S“ with at least borosilicate inner and outer filters, 75% gloss 0.55 W/m2radiant exposure retention 3000 h exposure, specimen size: 60 x 60 minimum x 2.0 +/- 0.1 mm thick x 2.0 +/- 0.1 mm thick, 3.7.3 Resista
21、nce to Scratching (FLTM BN 108-13, 1.0 +/- 0.1 mm steel ball at 7.0 N, 6.0 N, 4.5 N, 3.0 N and 2.0 N) 7Rating 2, max required at 2.0 N (No visible whitening at any load) NOTE: For rigid thermoplastics such as ASA, PC/ASA, PMMA and PA. for filled and unfilled TEOs and other semi-rigid materials such
22、as PVC see relevant material specification. 3.7.4 Resistance to Fluid Spotting (FLTM BI 113-01) Test Fluids: (Current production factory fill materials, Motorcraft products or equivalent) Deionized Water Liquid Soap Windshield Washer Solution Neat and 30% concentration in deionized water Coolant Sol
23、ution Neat and 30% concentration in deionized water Motor Oil Bug and Tar Remover No color change in excess of Gray Scale rating of 4-5 (AATCC Evaluation procedure1/ ISO 105-A02), surface distortion or permanent softening permitted. ENGINEERING MATERIAL SPECIFICATIONWSS-M98P13-A Printed copies are u
24、ncontrolled Copyright 2008, Ford Global Technologies, LLC Page 4 of 4 3.7.5 Resistance to Fuel (FLTM BO 101-05) Fuel Composition (FLTM AZ 105-02) By Volume: 1. Reference fuel CE10 (fuel C 90%, denatured ethanol 10%) 2. Reference fuel F (diesel fuel, Grade #2, 100%) 3. Reference fuel E85 per SAE J168
25、1 (fuel C 15%, denatured ethanol 85%) After 5 minutes recovery time, no color change in excess of Gray Scale rating 4 - 5 (AATCC Evaluation procedure 1/ISO 105-A02), dulling, surface distortion or permanent softening permitted. 3.7.6 Resistance to Crocking from Cleaning Agents (FLTM BN 107-01) The c
26、otton tip shall be saturated with the following cleaning agents: Dry Deionized Water Ammoniated Glass Cleaner 1:1 Isopropyl Alcohol: Water Ford All Purpose Cleaner (current release) Armor All No color change in excess of Gray Scale rating of 4-5 (AATCC Evaluation Procedure 1/ ISO 105-A02), dulling,
27、surface distortion or permanent softening permitted. 3.7.7 Resistance to Road Asphalt Staining, maximum 1.5 E (For applications below the beltline) Prepare a solution of 50% asphalt cement and 50% unleaded gasoline. Dip the test specimen in the solution for 10 seconds. Suspend specimen for 15 minute
28、s allowing the solution to drain/evaporate. Clean specimen thoroughly with naptha. Use an untested portion of the part as the control. Before and after staining, measure the color per SAE J1545, CIELAB color space, 10 observer, illuminant C, specular included. Calculate E. A part that fails this tes
29、t must be coated with an appropriate clear coating and retested. 3.7.8 Resistance to Wax (FLTM BI 164-01 on untextured parts/plaques only) No color change in excess of Gray Scale rating of 4-5 (AATCC Evaluation Procedure 1/ ISO 105-A02), surface distortion, etching or permanent softening permitted. There shall be a minimum of 90% gloss retention as tested per FLTM BI 110-01.
