1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Para. No. Revisions Rev 02 2012 05 04 N Status C No usage or replacement N. Benipal, NA 1978 11 17 Metricated and Retyped CAH1-RD572066-179 1971 03 03 Released CZZ1-DR-538617-3 3948-a Page 1 of 7 ENAMEL, ACRYLIC - POLISH RES
2、ISTANT - SYNTHETIC BAKING - LOW ESB-M32J101-B AND MEDIUM GLOSS - EXTERIOR ENAMEL, ACRYLIC - POLISH RESISTANT - SYNTHETIC BAKING - ESB-M32J101-C EXTERIOR LOW AND MEDIUM GLOSS - EXEMPT SOLVENT NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are polish resistant, th
3、ermosetting acrylic baking enamels suitable for exterior exposure on large, highly visible surfaces. 2. APPLICATION These specifications were released originally for enamels used as final color coats on exterior parts where a low or medium gloss is required. It shall be satisfactory for use over spe
4、cified primers, enamel sealers, or over baked ESB-M32J100 quality enamel. 3. REQUIREMENTS 3.1.1 Vehicle The fixed vehicles shall be melamine modified, acrylic polymers with minor amounts of plasticizers. No alkyd resins are permitted. The proportions of solvents in the volatile portion shall be so a
5、rranged that the enamels will level out satisfactorily 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 (39m) without sagging and with satisfactory freedom from roughness or dry spray. The volatile
6、portion shall contain sufficient active solvents to give satisfactory adhesion when the enamel is applied over a previously baked coat of ESB-M32J100 quality enamel. 3.1.2 Pigment The pigments shall be balanced and blended so that the finished enamels match the Ford Motor Company master panel in col
7、or and luster and meets the requirements of these specifications for durability and polish resistance. 3.1.3 Specific Composition When it is necessary to obtain specific data regarding enamel formulations, it is understood that suppliers will furnish such data on request. 3.1.4 Toxicity The enamels
8、shall contain no benzol (benzene), chlorinated or other toxic compounds, or hydrolyzable chlorine derivatives or have an obnoxious or objectionable odor.ENGINEERING MATERIAL SPECIFICATION ESB-M32J101-B/C Page 2 of 7 3.2 PHYSICAL PROPERTIES 3.2.1 Viscosity 28 - 40 s (FLTM BI 11-1) 3.2.2 Non-Volatile
9、(FLTM BI 2-1) Solids, min All metallic colors 36 Black 36 Dark colors 44 Colors with organic pigment 49 Light colors (over 80 % TiO2 pigment) 50 Pure chrome colors 49 3.2.3 Hiding (FLTM BI 1-1) Colors containing organic pigments, max 16 Metallic colors Refer 3.2.4 All other colors, max 12 Test Condi
10、tions Viscosity 20 s #4 Ford Cup Wedge Constant 0.007 in (0.18 mm) 3.2.4 Hiding, Dry Checkerboard (FLTM BI 3-1) For metallic enamels only complete visual hiding over red and gray checkerboard at 0.0015 in (39 m) dry film thickness. 3.2.5 Stability The material shall not jell or liver on standing. Te
11、st Method: Place a sealed 3/4 full pt (0.5 1) can in an oven for 16 h at 60 +/- 1 C. A change in viscosity of 10 s or hard packed settling shall indicate instability. 3.2.6 Settling The material shall not exhibit hard settling that cannot be readily redispersed after a three month shelf storage peri
12、od. 3.3 PREPARATION OF TEST PANELS (FLTM BI 3-2, Method “B“) The following requirements are specific for ESB-M32J101 - enamels in addition to those shown in the test method. ENGINEERING MATERIAL SPECIFICATION ESB-M32J101-B/C Page 3 of 7 3.3.1 Primer Apply ESB-M6J102 (reduced to 17 +/- 2 s, #4 Ford C
13、up with M14J245) to a dry film thickness of 0.00075 - 0.00085 in (19 - 21 m). Let flash 1 min and apply ESB-M6J103 (reduced to 17 +/- 2 s, #4 Ford Cup with M14J245) to 0.00125 - 0.00150 in (32 - 38 m) total dry film thickness. Bake at 149 +/- 2 C for 15 min. 3.3.2 Wet sand to 0.00075 - 0.0010 in (19
14、 - 25 m) dry film thickness with 360 grit paper. Rinse to remove sludge and dry 5 min at 138 +/- 2 C. Cool to 23 +/- 2 C before proceeding Leave 1/2 of one panel unsanded for adhesion tests. 3.3.3 Enamel Sealer Apply ESB-M99J126 or ESB-M99J222 (reduced to 22 s, #4 Ford Cup at 27 C with M14J210) to 0
15、.00050 - 0.00075 in (13-19 m) dry film thickness. Bake 20 min at 137 +/- 2 C. 3.3.4 Sand Wet sand to 0.00075 - 0.0010 in (19 - 25 m) dry film thickness with 360 grit paper. Rinse to remove sludge and dry 15 min at 138 +/- 2 C. Cool to 23 +/- 2 C before proceeding. Para 3.3.3 and 3.3.4 may be omitted
16、 when the production system does not include enamel sealer. 3.3.5 Enamel 3.3.5.1 Over Primer Apply ESB-M32J101 quality enamel (reduced to 17s, #4 Ford Cup at 27 C with M14J245; record percent of solvent required) to a dry film thickness of 0.0015 - 0.0020 in (39 - 50 m), enamel only. Bake per para 3
17、.3.8. 3.3.5.2 Over ESB-M32J100 or ESB-M32J102 Apply ESB-M32J100 or ESB-M32J102 quality enamel (reduced to 17 +/- 2 s, #4 Ford Cup at 27 C with M14J245) to a dry film thickness of 0.0015 - 0.0020 in (39 - 50 m), enamel only. Bake per para 3.3.8 then apply ESB-M32J101 quality enamel (reduced to 17 +/-
18、 2 s #4 Ford Cup at 27 C with M14J245) to a dry film thickness of 0.0015 - 0.0020 in (39 - 50 m), low gloss enamel only. Bake per para 3.3.8. Sand 1/2 of one enameled panel before spraying with ESB-M32J101 for adhesion tests. ENGINEERING MATERIAL SPECIFICATION ESB-M32J101-B/C Page 4 of 7 3.3.6 Both
19、solid colors and metallic colors require three medium wet coats with 1 to 2 min flash between coats for even dispersion and optimum gloss. 3.3.7 Age panels before testing as shown in the respective tests. 3.3.8 Baking Cycles The following baking schedules are required for ESB-M32J101 quality enamel
20、tests: Standard Bake: 17 min at 129 +/- 2 C The above bake applies to the following tests: Para 3.4.1 Color Para 3.4.2 Gloss Para 3.4.3 Heat sensitivity Para 3.5.2 Hardness Para 3.5.3 Adhesion Para 3.5.6 Polish resistance Para 3.6 Resistance properties Rebake: standard bake plus 20 min at 138 C Para
21、 3.4.1 Color Para 3.4.2 Gloss Para 3.4.3 Heat sensitivity Para 3.7.3 Intercoat adhesion Para 3.5.4 Bleeding 3.4 APPEARANCE 3.4.1 Color (FLTM BI 9-1) Color shall match the Ford Motor Company master panel after all of the baking cycles described in para 3.3.8. 3.4.2 Gloss (FLTM BI 10-1) The gloss shal
22、l 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 3.4.3 Heat Sensitivity A commercial color match shall be obtained with no significant change in gloss as defined in para
23、 3.4.2, or more than 2 units change in Sward Hardness, when the enamel is baked at the following schedules: . 17 min at 129 C. . Standard bake plus 20 min at 138 C. ENGINEERING MATERIAL SPECIFICATION ESB-M32J101-B/C Page 5 of 7 3.4.4 General The enamels shall bake out to a presentable, serviceable f
24、ilm showing no craters, pinholes, seediness, abnormal roughness or excessive metallic mottling. 3.5 FILM PROPERTIES 3.5.1 Film Thickness 0.0015 - 0.0020 in (39 - 50 m) 3.5.2 Hardness (FLTM BI 12-1) Sward 20 - 40 Knoop, min 6 Film thickness Standard per para 3.5.1: No correction required. Bake Standa
25、rd (para 3.3.8) 3.5.3 Adhesion (FLTM BI 6-1) No flaking or chipping over sanded or unsanded primer or enamel. 3.5.4 Intercoat Adhesion (FLTM BI 6-2) Shall be satisfactory 3.5.5 Chip Resistance (FLTM BI 7-1) The chipping shall not exceed that of Fig 2. 3.5.6 Polish Resistance (FLTM BI 10-2, 60 Glossm
26、eter) The painted panel, shall exhibit no greater change in gloss than 10 units. 3.6 RESISTANCE PROPERTIES 3.6.1 Salt Spray Resistance, min 240 h (FLTM BI 3-1) There shall be no blistering and no more than 1/8 in (3 mm) rust creepage or loss of adhesion from a line scribed through to bare steel. 3.6
27、.2 Condensing Humidity, min 240 h (FLTM BI 4-2, Method “A“) There shall be no blistering, peeling, or loss in holdout. ENGINEERING MATERIAL SPECIFICATION ESB-M32J101-B/C Page 6 of 7 3.6.3 Water and Soap Spotting (FLTM BI 13-1) 3.6.3.1 Water Spot Discoloration, 0.3 N.B.S. units, max 3.6.3.2 Soap Spot
28、 Discoloration, 0.8 N.B.S. units, max 3.6.4 Acid Spotting (FLTM BI 13-2) 3.6.4.1 Acid Spot Discoloration, 0.8 N.B.S. units, max 3.6.5 Weathering Resistance The finished test specimen shall show a minimum degree of fading, chalking, dulling or color change. No greater change of gloss is permitted tha
29、n equivalent approved production colors. No increase of brittleness or loss of adhesion is permitted and specimens shall be completely free from evidence of cracking, checking, blistering, peeling, or rusting after exposure as follows: Florida exposure (Miami Area), min 12 months at 5 facing south.
30、Accelerated weathering* (FLTM BO 1-1) 400 h in Atlas XW Weatherometer. *In the event of differences between accelerated weathering and Florida exposure, the Florida exposure shall govern. 3.7 EXEMPT SOLVENT MATERIAL (ESB-M32J101-C Only) The volatile portion shall not be photochemically reactive as d
31、efined below: A photochemically reactive solvent is any solvent with an aggregate of more than 20 % of its total volume composed of the chemical compounds classified below or which exceeds any of the following individual percentage composition limitations, referred to the total volume of solvent: .
32、A combination of hydrocarbons, alcohols, aldehydes, esters or ketones having an olefinic or cycloolefinic type of unsaturation - 5 %. . A combination of aromatic compounds with eight or more carbon atoms to the molecule except ethylbenzene - 8 %. . A combination of ethylbenzene, ketones having branc
33、hes hydrocarbon structures, trichloroethylene or toluene - 20 %. ENGINEERING MATERIAL SPECIFICATION ESB-M32J101-B/C Page 7 of 7 Whenever any organic solvent or any constituent of an organic solvent may be classified from its chemical structure into more than one of the above groups of organic compou
34、nds, it shall be considered as a member of the most reactive chemical group, that is, that group having the least allowable percent of the total volume of solvents. Enamels or primers sent to various regions of the country must conform to E.P.A. rules and regulations for that region. 3.8 SPECIFIC CO
35、MPOSITION (ESB-M32J101-C Only) 3.8.1 Volatile Portion Suppliers shall furnish certification of conformance to para 3.7 of this specification to Ford Motor Company Purchasing and/or Quality Control. 3.9 SUPPLIERS RESPONSIBILITY Material supplied to this specification must be equivalent to that origin
36、ally approved. Changes in formulation or processing shall not be made without prior approval as described in Supplier Procedure I-A. 4. APPROVAL OF SUPPLIERS Suppliers to this specification must be approved by the affected product engineering office. Procedure for gaining approval of a specific material to a new/existing ES-M specification is contained in Supplier Procedure I-A. Approved new suppliers will be added to the Engineering Materials Approved Source List.
