1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 03 20 N Status No replacement named N. Benipal, NA 2006 03 21 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8 and 4 1992 03 24 NB00I10086867001 Released PAK, MP Controlled document at www.MATS Copyright 2012, Ford Global Technolo
2、gies, LLC Page 1 of 4 COATING, FLUOROPOLYMER, BRIGHTENED ALUMINUM ESB-M99J376-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a fluoropolymer coating over brightened aluminum to achieve a chrome-like appearance. The coating is applied by either spray or roll-co
3、ating. 2. APPLICATION This specification was released originally for material used for exterior body moldings. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part pro
4、ducers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 COMPOSITION 3.4.1 Substrate Aluminum processed to achieve brightened condition. 3.4.2 Clearcoat Fluoropolymer resin shall provide high gloss, high Distinctness of Image, and excellent weatherabil
5、ity. 3.5 APPEARANCE 3.5.1 Color (FLTM BI 109-01) Shall match the Ford master panel. 3.5.2 Gloss, min 95 (FLTM BI 110-01, 20 Glossmeter) 3.5.3 Distinctness of Image, min 80 (FLTM BI 110-03) 3.5.4 General The clearcoat shall be glossy and exhibit no craters, pin-holes, solvent-popping, seediness, abno
6、rmal roughness or excessive flow. ENGINEERING MATERIAL SPECIFICATION ESB-M99J376-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 4 3.6 FILM PROPERTIES 3.6.1 Film Thickness Requirements, micrometers Roll Coat 17.5 - 25 Spray 25 - 37 3.6.2 Hardness, min H - 2H (ASTM D 3364) 3.6.3 Adhesion 3.
7、6.3.1 Scratch Test (FLTM BI 106-01, Part A) No chipping or loss of adhesion of the clearcoat from the substrate is permitted. 3.6.3.2 Scribe Test (FLTM BI 106-01, Part B) Occurrence of flaking, chipping or peeling shall not exceed Fig. 2 of Test Method. NOTE: No delamination, peeling or loss of adhe
8、sion of the clearcoat from the basecoat is permitted. 3.6.3.3 Chip Resistance (SAE J 400) Use 0.50 L of graded gravel for this test (approximately 250 - 300 stones). Chipping shall be reported in accordance with the SAE J 400 gravelometer rating system Method II Visual Comparison Procedure, which ut
9、ilizes the Chipping Rating Standards. The chipping shall not exceed that of Fig. 4B. No delamination of clear-coat from basecoat is permitted. 3.7 RESISTANCE PROPERTIES FOR EXTERIOR APPLICATIONS 3.7.1 Condensing Humidity 240 h (FLTM BI 104-02, Procedure A) No blistering, peeling, dulling or delamina
10、tion of the clearcoat from the substrate is allowed. 3.7.2 Salt Spray 1000 h (FLTM BI 103-01) ENGINEERING MATERIAL SPECIFICATION ESB-M99J376-A Copyright 2012, Ford Global Technologies, LLC Page 3 of 4 3.7.3 Water and Soap Spotting (FLTM BI 113-01) No spotting is permitted. 3.7.4 Acid Spotting (FLTM
11、BI 113-05) No spotting or discoloration is permitted. 3.7.5 Resistance to Xylene Age clearcoat for 72 h at ambient room temperature of 23 +/-2 C prior to testing. Use a circular motion to rub the surface of the clearcoat 10 times with a small wad of cheesecloth which has been wetted with xylene. The
12、re shall be no softening, dulling or other undesirable effects. 3.7.6 Cold Checking Resistance (FLTM BI 107-02) The material shall withstand a minimum of 10 cold test cycles without cracking or noticeable dulling. 3.7.7 Weathering Resistance 3.7.7.1 Florida Exposure 60 months (Miami area, facing sou
13、th standard rack at 5 from horizontal) A vertical 25 mm line is scribed at the lower left corner of panels prior to Florida exposure testing. (The scribe line is located 25 mm from the left edge of panel, and 10 mm from the bottom edge). Panels are exposed for 12, 24, 36, 48 and 60 months, respectiv
14、ely. A total of 5 panels is required. NOTE: The performance rating assigned to a completed 60 months Florida exposure panel takes precedence of a panel of the same material exposed for 2500 h in accelerated weathering tests (Q-Panel or equivalent). Returned, completed Florida exposure panels shall b
15、e washed in entirety with a soft foam pad using a 25% Ford M-1034 soap solution. Next, the panels are rinsed with tap water, blown dry with clean compressed air, and then placed in a deionized water bath for 16 h per FLTM BI 104-01. After panels are removed from water bath and thoroughly blown dry,
16、an “X“, to be located at the center of panel and 50 mm from the bottom, is scribed. The “X“ shall be 30 mm in height and 20 mm wide. Tape the original scribe line and the “X“ - scribe with 3M 898-2 tape and check for peeling and delamination of clearcoat from basecoat. There shall be no blistering,
17、delamination of the clear-coat from the basecoat or peeling of the basecoat from the primer. ENGINEERING MATERIAL SPECIFICATION ESB-M99J376-A Copyright 2012, Ford Global Technologies, LLC Page 4 of 4 After two years Florida exposure, the panels shall exhibit no more than 25% loss of original 20 glos
18、s (ref. para. 3.5.2) or more than 25% loss of original DOI (ref. para. 3.5.3). NOTE: If the completed Florida exposure panels require more thorough cleaning to facilitate proper evaluation, the lower 1/3 of the panels may be polished with Ford Custom Silicone Gloss cleaner, part number B7AZ-19530-AA
19、 using a soft cloth. This procedure is performed only after the panels have been previously washed and subjected to water immersion and the “X“ - scribe tape pull. The panels shall show no more evidence of chalking, dulling, fading or other color change than the standard master sample on file in th
20、e B&CE Materials and Paint Engineering Section. Also, the panels shall be free from cracking and microchecking when examined with the aid of a light source such as a Berkey Colortran Multi-10A Lamp, Model 100-301 using a Sylvania 120V FBY bulb. Any evidence of such cracking or microchecking is consi
21、dered to be a failure. 3.7.7.2 Accelerated Exposure 2500 h (SAE J2020, Fluorescent UV and Condensation Apparatus. Cycle is four (4) h condensing humidity at 50 C followed by eight (8) h fluorescent UV at 70 C) Scribe vertical 25 mm line at lower left corner of panels and place in apparatus at beginn
22、ing of condensation cycle. Upon removal from test, tape scribe line with 3M 898-2 tape and check for delamination of clearcoat from substrate. The panel shall be subject to the same exposure performance criteria as described above for Florida panels. Especially critical is the examination of panels for cracking and microchecking since those constitute a serious failure mode.
