1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 05 10 N Status No usage or replacement N. Benipal, NA 2008 04 17 Revised Inserted 3.0; Deleted 3.11 Percent Min By Weight (FLTM BI 102-01) 82 72 3.1.2 Metallic Zinc Content; Percent Min of Non- Volatile Content (FLTM AI 001-01) 90
2、 83 ENGINEERING MATERIAL SPECIFICATION ESB-M6J74-A ESB-M6J75-A ESB-M6J107-A ESB-M6J108-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 5 Type I Type II 3.1.3 Weight per volume min, lb/gal(kg/l) at 23 +/- 2 C (ASTM D 1475) 21 (2.52) 16 (1.92) 3.1.4 Viscosity (FLTM BI 111-01) . Sprayable Pri
3、mer 24 - 30 s . Brushable Primer 60 - 70 s 3.1.5 Flash Point, min (ASTM D 56) ESB-M6J74-A, ESB-M6J75-A 27 C ESB-M6J107-A, ESB-M6J108-A 17 C 3.1.6 Storage Stability The material shall not jell, settle hard or have a viscosity change from the original in excess of 20 s when left undisturbed for 60 day
4、s at 23 +/- 2 C. Note: Conformance to this requirement is mandatory for all new materials submitted for engineering approval and for all production material supplied to the company and subsequently stored under the above conditions. This is not required as routine control test. 3.1.7 Gassing (FLTM B
5、I 102-03, 72 h) Shall not gas. 3.2 PREPARATION OF TEST PANELS (FLTM BI 103-04) Control panels using current approved production material will be concurrently prepared and tested per paragraph 3.3, 3.4, and 3.5. 3.2.1 Drying Material shall dry to handle in 10 min at 23 +/- 2 C. For film property and
6、resistance tests, material shall be baked 15 min at 177 +/- 2 C, followed by 45 min at 149 +/- 2 C. For weldability and zinc phosphate wash-off tests, the material shall be air dried only for 72 h at 23 +/- 2 C. 3.2.2 Aging Baked panels shall be aged 72 h at 23 +/- 2 C before running adhesion or res
7、istance tests. ENGINEERING MATERIAL SPECIFICATION ESB-M6J74-A ESB-M6J75-A ESB-M6J107-A ESB-M6J108-A Copyright 2012, Ford Global Technologies, LLC Page 3 of 5 3.3 APPEARANCE The primer shall bake out to a uniform film, showing no pinholes, craters, or abnormal roughness. 3.4 FILM PROPERTIES 3.4.1 Adh
8、esion (FLTM BI 106-01) Shall be equal to approved production material. 3.5 RESISTANCE PROPERTIES 3.5.1 Salt Spray Resistance, min 240 h (FLTM BI 103-01, except do not scribe panels) Material must be equal to or better than the master maximum corrosion standard color photographs on file in the Body M
9、aterials Laboratory. Note: Disregard any effects within 1/4 in (6.4 mm) of all panel edges. 3.5.2 Water Resistance, min 250 h (FLTM BI 104-01) Acceptance requirements for the three types of test panels are as follows: . Clean Steel No rust or blistering . Oiled Steel No rust or blistering . Oiled wi
10、th Drawing Compound Steel No rust Blisters are permitted provided they are no greater than 1/16 in (1.6 mm) diameter or appear over no more than 2-1/2% of the panel area. (ASTM D 714 blister size No. 6, “Few“ photograph is recommended as a guide for the determination of the above). Note: Disregard a
11、ny results within 1/4 in (6.4 mm) of all panel edges. 3.5.3 Zinc Phosphate Wash Resistance (FLTM BI 003-06) The material, when applied to a type “C“ panel per FLTM BI 103-04, must be equivalent to currently approved production material. Substrate Steel panels with oil and drawing compound (Type “C“
12、per FLTM BI 103-04). Film Thickness 0.0015 in - 0.0020 in (39 - 50 m) Age According to 3.2.2 (Do not bake) Note: Final approval of zinc phosphate wash resistance shall be made by the affected manufacturing division of the primed part. The test material shall be tested concurrently with current appro
13、ved production material by means of a shop trial using production parts under production conditions. ENGINEERING MATERIAL SPECIFICATION ESB-M6J74-A ESB-M6J75-A ESB-M6J107-A ESB-M6J108-A Copyright 2012, Ford Global Technologies, LLC Page 4 of 5 3.5.4 Resistance to Bleed There shall be no evidence of
14、bleeding when tested according to the following procedure: . Panels shall be cold rolled low carbon steel, zinc phosphate coated per ESB-M3P1-A. . Paint half of a 4 x 12 in (100 x 300 mm) panel (2 x 12 in (50 x 300 mm) area) with the test sample of zinc rich weld primer to a dry film thickness of 0.
15、0035 in (89 m). . Bake the panel for 15 min at 177 +/- 2 C and allow it to cool to room temperature. . Spray ESB-M32J100 quality white enamel over the entire panel to a dry film thickness of 0.0015 - 0.0020 in (39 - 50 m) (white coat only). . Bake 17 min at 129 +/- 2 C. . Examine immediately after r
16、emoval from the oven or after standing for 24 hours at 23 +/- 2 C. Note: The rougher finish resulting over the weld primer shall not be construed as color change or bleed through. 3.6 WELDABILITY Material under test, when applied over clean steel per FLTM BI 103-04 (Type “A“) at a dry film thickness
17、 of 0.0020 - 0.0030 in (51 - 76 m) and air dried 72 h at 23 +/- 2 C shall pass FLTM BQ 008-01, Tests “A“ and “B“. 3.7 EXEMPT SOLVENT MATERIALS (ESB-M6J107 and ESB-M6J108 Only) The volatile portion shall not be photochemically reactive as defined below: A photochemically reactive solvent is any solve
18、nt 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: . A combination of hydrocarbons, alcohols, aldehydes, esters or
19、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 branched hydrocarbon structures, trichloroethylene or toluene - 20%.
20、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 compounds, it shall be considered as a member of the most reactive chemical group, that is, that group having the least allowable perc
21、ent of the total volume of solvents. ENGINEERING MATERIAL SPECIFICATION ESB-M6J74-A ESB-M6J75-A ESB-M6J107-A ESB-M6J108-A Copyright 2012, Ford Global Technologies, LLC Page 5 of 5 Enamels or primers sent to various regions of the country must conform to E.P.A. rules and regulations for that region.
22、3.8 SPECIFIC COMPOSITION (ESB-M6J107 and ESB-M6J108) 3.8.1 Volatile Portion Suppliers shall furnish certification of conformance to paragraph 3.7 of this specification to Ford Motor Company Purchasing and/or Quality Control for each color supplied. 3.9 TOXICITY The enamels shall contain no benzol (b
23、enzene), chlorinated or other toxic compounds, or hydrolyzable chlorine derivatives nor have an obnoxious or objectionable odor. 3.10 RECLAIMED ZINC RICH WELDING PRIMER When ESB-M6J74 and ESB-M6J107 Zinc Rich Weld Primers are reclaimed, each batch supplied under the above specification must be teste
24、d for conformance to the specification requirements. The shipping containers of the reclaim primer must be labeled “Reclaimed ESB-M6J74 or ESB-M6J107“ with the identification of the plant from which the material was taken. Note: In addition to the preceding labeling requirement, when ESB-M6J74 is re
25、claimed, the type (I or II) must also appear on the label. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 FLAMMABILITY This material represents a potential fire 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 precautions are provided. The location in which it is used or stored shall be included in the notification.
