1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 11 18 N-STATUS No replacement named C. McComb, NA 2006 11 08 Activated J. Crist Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 8 COATING PERFORMANCE, DECORATIVE FINISH, BRIGHT METAL WSS-M2P191-A1 P
2、ARTS, INTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the coating performance requirements for partially or fully coated interior parts made from chromium plated die castings, chromium plated steel or plastic, chromium flashed stainless steel, anodized aluminum and stainle
3、ss steel. 2. APPLICATION This specification was released to define coating performance of partially coated interior bright metal visible parts. A DOE is necessary to determine the optimum time of the completion of the plating process and the application of the coating, per paragraph 3.9. Colored ink
4、 is not recommended by Materials Engineering unless used over a black chrome process. Testing to be conducted at Design Verification (DV) or Process Validation (PV) per Table 1 unless otherwise agreed to by Materials Engineering. 3. REQUIREMENTS Material specification requirements are to be used for
5、 initial qualification of materials. Material Specification requirements are to be used for initial qualification of materials. All parts must also meet the appropriate DVP A-, B-, C, and D-Pillars; upper quarter panels; center finish panels, demisters and roof-rail moldings): . 5 h at -40 +/- 2 C .
6、 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 5 h at 100 +/- 2 C . 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 2 h at 50 +/- 2 C and 95 +/- 5% Relative humidity . 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 5 h at -40 +/- 2 C . 30 min at 23 +/- 2 C and 50 +/- 5% Relat
7、ive humidity . 5 h at 100 +/- 2 C ENGINEERING MATERIAL SPECIFICATIONWSS-M2P191-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 8 3.4.7.2 Horizontal or vertical parts BELOW THE BELT LINE (e.g. lower door panels, lower quarter trim panels, consoles). . 5 h at
8、 -40 +/- 2 C . 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 5 h at 90 +/- 2 C . 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 2 h at 50 +/- 2 C and 95 +/- 5% Relative humidity . 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 5 h at -40 +/- 2 C . 30 min at 23 +/- 2 C and 50
9、 +/- 5% Relative humidity . 5 h at 90 +/- 2 C 3.4.7.3 Scuff Plates, kick panels and other non-sun loaded floor level parts. . 5 h at -40 +/- 2 C . 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 5 h at 80 +/- 2 C . 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 2 h at 50 +/- 2 C and 9
10、5 +/- 5% Relative humidity . 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 5 h at -40 +/- 2 C . 30 min at 23 +/- 2 C and 50 +/- 5% Relative humidity . 5 h at 80 +/- 2 C Appearance Evaluation: No evidence of cracks, blisters or change in gloss when compared with original unaged sample. Evalu
11、ate color change per ISO 150-A02/AATCC Procedure 1 must be Rating 4 or higher. Parts exposed per para 3.4.7 shall be immersed in water for 24 h per FLTM BI 104-01. No blistering, softening, dulling, or loss of adhesion when tested per para 3.4.1 within 30 minutes of removal from water on all paint s
12、ystems. The temperature at which the parts were tested must be clearly reported on the PSW or the laboratory report. 3.4.8 Weathering Resistance 3.4.8.1 Xenon Arc Weatherometer See Table Required Worldwide except North America (SAE J1885) 3.4.8.2 Filtered Xenon Arc Weatherometer See Table Required f
13、or North America (SAE J1885 modified (FLTM BO 116-01) If panels are used the panel size shall be approximately 60 +/- 5 x 150 +/- 5 mm with 1/3 area protected from exposure. Duplicate parts or panels are required, one for appearance evaluation and one for water immersion. ENGINEERING MATERIAL SPECIF
14、ICATIONWSS-M2P191-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 6 of 8 The parts should be exposed per the chart below: PART DESCRIPTION/LOCATION 3.6.9.1 EXPOSURE (kJ/m2) 3.6.9.2 EXPOSURE (kJ/m2) RATING Instrument Panel Top and Defroster Grille Severe Exposure
15、 1504.0 3609.6 4 2 Tone IP, IP Bezel, A-Pillars Heavy Exposure 1240.8 2406.4 4 Door Trim, Interior Trim, Rigid, Pillars & Garnish Moldings Above the Beltline 488.8 1052.8 4 Door Trim, Floor Console, Radios and Radio Bezels Below the Beltline 225.6 601.6 4 Lower Trim Panels or Overhead Console, Mild
16、Exposure 112.8 225.6 4 After the color and gloss measurements, one of the weathered specimens shall be subjected to the water immersion test for 24 h at 32 +/- 2 C and evaluated per para 3.4.1. No blistering, softening, dulling, color change or loss of adhesion when tested per para 3.4.1 within 30 m
17、inutes of removal from water on all paint systems. The parts tested shall be completely free from evidence of cracking, checking, blistering, and peeling. Read and report L.a.b. E color change per SAE J1767 which must not be greater than 1.9. Read and report the gloss change per FLTM BI 110-01. The
18、gloss should not increase and if the gloss decreases is should be less than 30%. 3.4.9 Resistance to Water and Soap Rating 4 Spotting, max discoloration (FLTM BI 113-01, ISO 105-A02/AATCC Evaluation Procedure 1) No film softening allowed for any solution. 3.4.10 Resistance to Window Cleaner Spotting
19、 Rating 4 Apply 0.25 ml of glass cleaner per section 5.1 on the test sample using a non-reactive O-ring. Expose the sample at the room temperature for 1 h. Evaluate per ISO 105-A02/AATCC Evaluation Procedure 1. No film softening allowed for any solution. 3.4.11 Resistance to Scratching, max (FLTM BN
20、 108-13, 2N force) Monocoat Systems Rating 2 ENGINEERING MATERIAL SPECIFICATIONWSS-M2P191-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 7 of 8 3.4.12 Soiling and Cleanability, min (FLTM BN 112-08, ISO 105-A02/AATCC Evaluation Procedure 1, grease and coffee soi
21、ling agents only) Cleanability Rating 3 3.4.13 Resistance to Suntan Lotion Rating 3 and Insect Repellent, max (FLTM BO 113-08) 3.5 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 70 Formation of clear film, droplets or crystals is ca
22、use for rejection. 3.6 ODOR, max Rating 2 (FLTM BO 131-01, SAE J1351) 3.7 HARDNESS Shall be sufficiently cured after baking to withstand normal handling and shipping without damage. Properly cured paint finish shall be hard enough to dry sand easily with 360 grit paper without gumminess or severe sc
23、ratching. 3.8 PROCESS WINDOW DEFINITION The supplier shall perform a Design Of Experiments (DOE) utilizing response surface analysis to determine the Process Window of the system. The four variables to be included in the design are bake time, bake temperature, film thickness, and min/max time betwee
24、n bright finish application and application of coating. An initial screening experiment should be run to determine what level will generate a window which includes testing to failure. This screening experiment should be reviewed with the Materials Engineer to set up the final DOE. Response attribute
25、s to the DOE should be based on the materials tested and should include, but not be limited to: Film Thickness, para 3.3.3 Gloss, para 3.3.2 Initial Adhesion, para 3.4.1 Water Resistance, para 3.4.2 Naptha Crocking (2K only), FLTM BN 107-01, 10 cycles 50/50 Isopropyl Alcohol (1K only), FLTM BN 107-0
26、1, 10 cycles ENGINEERING MATERIAL SPECIFICATIONWSS-M2P191-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 8 of 8 TABLE 1 Sample size/ color New Coating Technology New Color Existing Technology To be done at DV testing To be done at PV testing 3.4.1 Adhesion 3 X
27、X X X 3.4.2 Water Resist 3 X X X X 3.4.3 Abrasion Resist 1 X X X 3.4.4 Resist. Cleaning 1 X X 3.4.5 Crocking Wet/Dry 1 X X 3.4.6 Heat Exposure 1 X X 3.4.7 Environ. Cycle 1 X X X 3.4.8 Weathering 3 X X X 3.4.9 Resist Water/Soap 1 X X 3.4.10 Resist. Window Clr 1 X X 3.4.11 Resist Scratch 1 X X X X 3.4.12 Soil Cleanability 1 X X 3.4.13 Resist Sun/Bug 1 X X X 3.5 Fogging 1 X X 3.6 Odor 1 X X X = required
