1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 03 2014 11 21 N Status C1 replaced by WSS-M2P122-D1, C3 replaced by WSS-M2P122-D2, C4 replaced by WSS-M2P122-D3, C6 replaced by WSS-M2P122-D4 C. Mracna, NA 2013 02 18 Revised See summary of revisions C. Mracna, NA 2010 09 27 Revised See
2、summary of revisions C. Mracna, NA Controlled document at www.MATS Copyright 2014 Ford Global Technologies, LLC Page 1 of 7 PAINT PERFORMANCE, ALUMINUM WHEELS WSS-M2P122-C1 PAINT PERFORMANCE, ALUMINUM WHEELS, SPARE WSS-M2P122-C3 PAINT PERFORMANCE, STEEL WHEELS WSS-M2P122-C4 PAINT PERFORMANCE, STEEL
3、WHEELS, SPARE WSS-M2P122-C6 NOT TO BE USED FOR NEW DESIGN 1. SCOPE These specifications define the performance requirements for color/clear coatings over wheels. 2. APPLICATION These specifications were released originally for full or partially painted wheels. 3. REQUIREMENTS 3.1 STANDARD REQUIREMEN
4、TS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). All requirements of this specification must be met with production intent wheels, unless otherwise noted. 3.2 COATING The supplied coating s
5、hall be a continuous film, free of blisters, bubbles, foreign material and similar imperfections. 3.3 FILM PROPERTIES 3.3.1 Film Thickness Coating thickness must be sufficient to meet all the requirements of these specifications. Each coating manufacturers thickness requirements are to be specified
6、on the applicators Control Plan. To protect against filiform corrosion, the recommended minimum thickness for bright machined, clear coated wheels is 0.070 mm. Primer and Color usage will be defined on the Engineering Drawing. ENGINEERING MATERIAL SPECIFICATION WSS-M2P122-C1/C3/C4/C6 Copyright 2014,
7、 Ford Global Technologies, LLC Page 2 of 7 3.3.2 Initial Hardness The finish shall be sufficiently cured at the time of packing to withstand normal handling and shipping without damage. 3.3.3 Color and Gloss (FLTM BI 109-01 and BI 110-01) Paint suppliers must certify color and gloss as required on E
8、ngineering Drawing for each batch of paint. Paint areas and gloss levels on wheels must match master samples originally approved by the Design Center. 3.3.4 Gas Soak (Immerse samples for 1 hr at 23 +/- 2 C in commercially available grade of 87 octane, lead free gasoline.) After 5 minute recovery tim
9、e, no color change in excess of Gray Scale rating 4 5 (AATCC Evaluation Procedure 1/ISO 105-A02), no gloss change (FLTM BI 110-01, 25% max), and no surface distortion or permanent softening permitted. Adhesion shall meet the requirements of para 3.4. 3.4 PAINT ADHESION Grade 1 max (FLTM BI 106-01, M
10、ethod B, carbide tip scribe only) Lightly hand sand paint film surface (10 double rubs, moderate pressure) with P600 paper until dull, before scribe operation and checking adhesion. 3.5 HIGH PERFORMANCE ADHESION 3.5.1 Thermal Shock 2 mm2 max at scribe (FLTM BI 107-05) intersection or 1.5 mm from the
11、 scribe line Alternate Method 3.5.2 Resistance Against High Pressure Cleaner 2 mm2 max (FLTM BO 160-04, Method B) Prior to testing the painted surface shall be X-scribed through to the substrate (30 angle). 3.6 FLUID SPOTTING RESISTANCE Rating 4 - 5 (FLTM BI 168-01, Body & Exterior Trim, Methods A a
12、nd B, AATCC Evaluation Procedure 1/ISO 105-A02. For Method A adhesion testing, Grade 2 max should be used.) 3.6.1 Gasoline Resistance 3.6.2 Diesel Fuel Resistance 3.6.3 Brake Fluid (DOT 3 or DOT 4) 3.6.4 Wheel Cleaner Resistance (Motorcraft wheel cleaner - P/N ZC-37) 3.6.5 Tire Sealant Resistance (T
13、emporary Mobility Kit, P/N 4G7V-19L523-AB) ENGINEERING MATERIAL SPECIFICATION WSS-M2P122-C1/C3/C4/C6 Copyright 2014, Ford Global Technologies, LLC Page 3 of 7 3.7 CHIP RESISTANCE 3.7.1 Stone Chip Resistance 4B max (SAE J400, 0.5 L (1.05 pts.) of gravel, -20 & 23 C) Alternate Method 3.7.2 Grit Blast,
14、 Split Shot Rating 7 min (FLTM BI 157-06) Test shall be conducted on flat test pieces cut from production wheels or simulated test panels. 3.8 WATER RESISTANCE, 240 h (FLTM BI 104-01) No blistering, no gloss change (FLTM BI 110-01, 25% max), no loss of adhesion, and/or any other coating failure. Adh
15、esion shall be tested within 20 minutes after removal from water according to paragraph 3.4, Grade 2 max allowed. 3.9 WEATHERING RESISTANCE 3000 hours (SAE J2527, 0.55 W/m2 Irradiance Borosilicate and Outer Filters) Spare wheels are exempt from accelerated weathering. Alternate Method Natural Weathe
16、ring 2 years (FLTM BI 160-01, Florida, 5 south, direct weathering inland) No evidence of yellowing, crazing, checking, chalking or other degradation in film appearance after exposure to weathering. Test panels representative of the wheel material are acceptable. 3.9.1 Color Change Rating 4 min (AATC
17、C Evaluation Procedure 1/ISO 105-A02) 3.9.2 Gloss Change 25% max without polishing (FLTM BI 110-01) 10% max with polishing 3.9.3 Adhesion after Weathering per section 3.4 Grade 2 max allowed ENGINEERING MATERIAL SPECIFICATION WSS-M2P122-C1/C3/C4/C6 Copyright 2014, Ford Global Technologies, LLC Page
18、4 of 7 3.10 FILIFORM RESISTANCE, Clear Coated Surfaces Only, 672 h (SAE J2635) Wheel samples shall consist of a pie-wedge piece containing two spokes, two lug towers, pilot bore, valve hole, and two scribe lines (see below). No more than 4.0 mm corrosion or loss of adhesion from the scribe line. No
19、filament growth allowed from design edges. Scribing is not required if machined surface along spoke (perpendicular to machining direction) is less than 10mm. 3.11 CYCLIC CORROSION RESISTANCE (Laboratory Accelerated Cyclic Corrosion Test 00.00-L-467) 3.11.1 Aluminum Wheels WSS-M2P122-C1 9 weeks WSS-M
20、2P122-C3 4 weeks At test termination, wheel must have an acceptable as-installed appearance based on a jury evaluation of at least two people, one person from Ford Wheels Engineering, and the other from either Ford Wheels or Materials Engineering. Additionally, the wheel appearance must meet the min
21、imum appearance requirements as defined in the corrosion evaluation photo guides located in the Global Engineering Standard, RQT-001101-002492, Reference 1. 3.11.2 Steel Wheels Rust Grade 6 per ASTM D610 WSS-M2P122-C4 9 weeks WSS-M2P122-C6 4 weeks ENGINEERING MATERIAL SPECIFICATION WSS-M2P122-C1/C3/
22、C4/C6 Copyright 2014, Ford Global Technologies, LLC Page 5 of 7 4. GENERAL INFORMATION This information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 RE-WORK Wheel
23、s to be processed through coating operations a maximum of 2 times (initial and one re-work). Subsequent rework after 2 coatings requires that the wheels be stripped prior to coating. Re-worked wheels must match the master samples originally approved by the Design Center and meet all of the specifica
24、tion performance requirements. 4.2 STRIPPING Wheel stripping processes must not degrade the mechanical properties of the wheel. Recommended processes are listed below: Kolene Corporation - Kolene Recover 5000 Process 12890 Westwood Avenue, Detroit, MI 48223 (313) 273-9220 or Henkel Corporation P3 S
25、tripper 3000 32100 Stephenson Highway, Madison Heights, MI 48071 (248) 583-9300 or 4.3 RECOMMENDED TESTING REQUIREMENTS FOR DESIGN VALIDATION, PRODUCTION VALIDATION, AND SREA. Paint performance is a function of material selection, surface preparation, and paint application. For established coatings
26、 and coating lines, this may permit a reduced test schedule to validate compliance to this specification. Use the following table to determine the recommended test plan depending on the situation. ENGINEERING MATERIAL SPECIFICATION WSS-M2P122-C1/C3/C4/C6 Copyright 2014, Ford Global Technologies, LLC
27、 Page 6 of 7 Table 1 New Coating Material Established Coating All Applicators New Paint Line (No Ford History) Existing Paint Line (Applicator) Test Requirements Example A Existing part Example B New Part for a different application Example C Switching Known Paints on same part Example D New Part/Sa
28、me materials Example E Process Change Example F 3.3.1 Film Thickness X X X X X Contact Materials Engineering 3.3.2 Initial Hardness X X X X X 3.3.3 Color & Gloss X X X X X 3.3.4 Gas Soak X X X X X 3.4 Paint Adhesion X X X X X 3.5 High Performance Adhesion X X X X X 3.6 Fluid Spotting Resistance X 3.
29、7 Chip Resistance X X 3.8 Water Resistance X 3.9 Weathering Resistance X X1 3.10 Filiform Resistance X X 3.11 Cyclic Corrosion Resistance X X Example A. A new coating is developed by a paint manufacturer for automotive applications Example B. Painter goes out of business. New painter uses the same p
30、aint, but has never painted parts for Ford. Example C. Tier 2 painter for control arms is asked to coat steel wheels on the same paint line. Example D. Steel wheel supplier is switching from standard e-coat to high edge e-coat on their in-house paint line. Both e-coats are widely used at Ford. Examp
31、le E. Aluminum wheel supplier is painting the first run of PPAP parts for the new model program on the paint line that supports current model. Example F. The level of testing is highly dependent on what is changing. Contact Materials Engineering. 1 Potential use of surrogate data Note: This specific
32、ation cannot prove out parts or coatings that involve changes in vehicle environment such as increased stone chipping or increased temperature. These changes may require vehicle testing, consult SDS/ARL requirements. ENGINEERING MATERIAL SPECIFICATION WSS-M2P122-C1/C3/C4/C6 Copyright 2014, Ford Glob
33、al Technologies, LLC Page 7 of 7 5. SUMMARY OF REVISIONS 2013 02 18 Inactivated C2 and C5 suffixes Retitled C1, C3, C4, and C6 Updated cyclic corrosion reqs. in Sec. 3.11 2012 02 06 Sec. 3.9 Increase Natural Weathering from 6 months to 2 years to align with 3000 hour Accelerated Weathering req. Sec.
34、 3.11 Removed req. Salt spray has been replaced by cyclic corrosion in sec. 3.12. Sec. 3.12 Reformatted to 3.11 Sec. 4.3 Reformatted Table 1 to 3.11 2010 09 27 Sec. 3.3.4 Added section Sec. 3.7.2 - Added “Alternate Method“ Sec. 3.9 - Clarified weathering reqs. Exempted spare wheels. Sec. 3.10 - Removed reqs relating to production prior to 2010. Clarified filiform reqs. Sec. 3.12 Removed reqs relating to production prior to 2010. Aligned cycling corrosion weeks with GES 18-0040 DVM reqs. Sec. 4.3 Completely revised table to align with other paint specs.
