1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 05 04 N Status No usage or replacement N. Benipal, NA 2003 06 26 Revised Para 3.0 inserted; para 3.6 and 4 deleted 1983 04 19 Released CZN1-DC503060-1 Controlled document at www.MATS Copyright 2012, Ford Global Technologies, Inc.
2、Page 1 of 5 ENAMEL, BAKING, ONE COAT, LOW AND MEDIUM GLOSS, ESB-M2J217-A POLISH RESISTANT, EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a high quality, high baking, polish resistant thermosetting enamel, suitable for exterior exposure on highly visibl
3、e plastic components. 2. APPLICATION This specification was released originally for exterior plastic components, such as nylon cowl top grilles, window moldings, window louvers, etc., in which the coating would perform both as a primer-sealer and a durable topcoat. The coating can also be used over
4、primed plastics where the primer promotes leveling and D.I. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUICTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 COMPOSITION 3.1.1 Vehicle The fixed
5、vehicle and the hydrocarbon thinners shall be selected and balanced by the individual supplier, in such a manner that the product meets all the requirements of this specification. The proportions of solvents in the volatile portion shall be so arranged that the enamels will level out satisfactorily
6、on spray application. The volatility of the solvents is to be so chosen that three medium wet spray coats will give a dried film of at least 0.0015 in (39 m) without sagging and with satisfactory freedom from roughness of dry spray. The volatile portion shall contain sufficient active solvents to gi
7、ve satisfactory adhesion when the enamel is re-coated over a previously baked coating of itself. 3.1.2 Pigment The pigments shall be blended and balanced so that the finished enamels match the Ford Motor Company master panel in color, luster and stability and meets the requirements of the specificat
8、ion for durability and polish resistance. ENGINEERING MATERIAL SPECIFICATION ESB-M2J217-A Copyright 2012, Ford Global Technologies, Inc. Page 2 of 5 3.1.3 Specific Composition When it is necessary to obtain specific data regarding enamel formulation, it is understood that suppliers will furnish such
9、 data on request. 3.1.4 Toxicity The enamel shall contain no benzene, chlorinated or other toxic compounds or hydrolyzable chloride derivatives or have no obnoxious or objectionable odor. 3.2 Physical Properties 3.2.1 Viscosity, Package 30 - 40 s #4 Ford (FLTM BI 111-01) 3.2.2 Non-Volatile, min 45.0
10、% (FLTM BI 102-01) 3.2.3 Hiding, max Pfund 0.002 in (FLTM BI 101-01) Wedge 13 3.2.4 Weight Per Gallon, min 8.40 lb/gal at 23 +/- 2 C (ASTM D 1475) 3.2.5 Stability The material must not jell or liver upon standing. Test Method: Place a 3/4 full pint (0.5 L) can (lid loose) of unreduced material in a
11、vented oven for 16 h at 60 C. An increase of 10 s viscosity or hard settling of the material solids shall indicate non-stability. 3.2.6 Quality The material shall be a smooth, homogeneous mixture, free from foreign material and properties detrimental to normal production operations. 3.2.7 Baking Cyc
12、les Standard Bake 20 min at 137 +/- 2 C ENGINEERING MATERIAL SPECIFICATION ESB-M2J217-A Copyright 2012, Ford Global Technologies, Inc. Page 3 of 5 3.3 APPEARANCE 3.3.1 Color The color, after subjecting to standard bake as described in para 3.2.7, shall match the Ford Motor Company master panel. 3.3.
13、2 Gloss (FLTM BI 110-01, 60) The gloss shall be specified by means of a letter suffix to the color number assigned by styling as follows: B 80 +/- 4 F 35 +/- 3 C 70 +/- 4 G 20 +/- 3 D 62 +/- 3 H 10 +/- 3 E 50 +/- 3 J 6 max 3.3.3 General The enamels shall bake out to a presentable, serviceable film s
14、howing no craters, pin holes, seediness, abnormal roughness and, in the case of metallics, no excessive mottling. 3.4 FILM PROPERTIES 3.4.1 Film Thickness 0.0010 - 0.0015 in (FLTM BI 117-01) (25-39 m) 3.4.2 Adhesion and Scratch Resistance No chipping, flaking (FLTM BI 106-01) or no more than 5% loss
15、 of adhesion 3.4.3 Intercoat Adhesion Shall be satisfactory (FLTM BI 106-02) 3.4.4 Chip Resistance (SAE J 400) No more than 50 chips per described area and no chip to exceed 3 mm maximum in size. 3.4.5 Polish Resistance (FLTM BI 010-02, 60 Glossmeter) The painted panel shall exhibit no greater chang
16、e in gloss than 10 units. ENGINEERING MATERIAL SPECIFICATION ESB-M2J217-A Copyright 2012, Ford Global Technologies, Inc. Page 4 of 5 3.5 RESISTANCE PROPERTIES 3.5.1 Water Resistance, min 240 h Test Method: Immerse half the panel in distilled or deionized water maintained at 32 +/- 1 C per FLTM BI 10
17、4-01. Remove parts from the water and immediately scribe an “X“ through the coating(s) to the substrate, dry the scribed area with a paper towel, cloth or air pressure and immediately apply, with firm thumb pressure, a minimum of 2 in2 (13 cm2) of ESF-M3G48-A tape. Remove the tape by pulling one end
18、 at a 90 angle at a moderate speed. The following conditions shall be basis for rejection. . Removal of paint beyond 1/16 in (1.6 mm) from any scribe line. . Any evidence of blistering after tape removal. 3.5.2 Gasoline Resistance No blistering and only slight softening or dulling when subjected to
19、immersion in M14J148 (Petroleum Naphtha) for 1 h at 21 C min. Wipe the panel with a soft cloth and examine the cloth for evidence of color transfer and examine the paint film for evidence of degradation. 3.5.3 Resistance to Water and Soap Spotting (FLTM BI 113-01, except use of colorimeter is omitte
20、d) The enamel shall exhibit no more dulling or color change than the approved master sample on file in the Body Materials Laboratory. 3.5.4 Resistance to Acid Spotting (FLTM BI 113-02, except use of colorimeter is omitted) 3.5.5 Abrasion Resistance, min 3000 cycles/mil Use a CS-10 wheel, 50 gm load.
21、 3.5.6 Thermal Shock Resistance Shall exhibit no blistering or loss of adhesion when subjected to the following cycle test per FLTM BI 107-05: . 4 h water immersion . 4 h minimum exposure at -29 C. . Direct steam blast on scribed “X“ at 45 angle 2-3 in (50-75 mm) from panel for 15 s minimum. ENGINEE
22、RING MATERIAL SPECIFICATION ESB-M2J217-A Copyright 2012, Ford Global Technologies, Inc. Page 5 of 5 3.5.7 Weathering Resistance The finished test specimen shall show a minimum degree of fading, chalking, dulling or color change. No increase of brittleness or loss of adhesion is permitted and panels
23、shall be completely free from evidence of cracking, checking, blistering or peeling when exposed as follows: . Florida Exposure (Miami Area), min 12 months at 5 facing south . Accelerated Weathering, min 400 h (FLTM BO 101-01, Atlas XW Weatherometer) 3.5.8 Water Resistance after Weathering After pan
24、els have been exposed to either Florida or weatherometer, they shall be tested for 24 h water resistance as described in para 3.5.1. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 FLASH POINT, min
25、 23 C (ASTM D 56) 5.2 FLAMMABILITY This material represents a potential fire and/or health hazard. The Manufacturing Engineering Department shall notify both the Plant Security and the Safety Units of its presence in the Plant to assure that proper fire and/or health precautions are provided. The location in which it is used or stored shall be included in the notifications. 5.3 MATERIAL REFERENCES ESB-M4D353-A3 Mineral Nylon ESB-M4D353-A4 Mineral/Glass Nylon ESB-M6J106-B Type II Conductive Primer
