1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 08 29 N-STATUS No replacement named C. McComb 2003 08 12 Revised Para 3.0 inserted; Para 3.6 & 4 deleted 1978 11 17 Released AJ1-6000-148 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 5 PAINT QUAL
2、ITY, DECORATIVE FINISH FOR BRIGHT METAL PARTS - ESB-M2P69-C EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the paint performance requirements for partially painted exterior parts made from chromium plated die castings, chromium plated steel or plastic, chromium flashed st
3、ainless steel, anodized aluminum and stainless steel, including hub caps, wheel covers, grilles, back panels, moldings and large appliqus. 2. APPLICATION This specification was released originally for performance requirements for partially painted exterior bright metal parts employing air dry or bak
4、ing enamel, and for fully painted aluminum (not anodized) surfaces where a single coat of baked enamel is satisfactory. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials
5、 (WSS-M99P1111-A). 3.1 METAL PREPARATION 3.1.1 Partially Painted Anodized Aluminum, Chromium Plate, or Stainless Steel Surfaces Adequate preparation per process C-250E, or equivalent performing process when specifically so approved by the using Ford Manufacturing Division. 3.1.2 Fully Painted Alumin
6、um Bare aluminum (not anodized) shall be oxide coated per ESB-M6P2. 3.2 PRIMER FOR CHROMIUM SURFACES The use of ESA-M6J73 primer is optional if necessary to obtain the required adhesion. The primer film thickness requirement is 13 - 19 m. 3.3 ENAMEL Shall consist of a single coat of air dry or baked
7、 enamel. Prior to use of an enamel, the manufacturer of the enamel shall obtain approval for the specific color and gloss in question from the appropriate product engineering office. ENGINEERING MATERIAL SPECIFICATIONESB-M2P69-C Printed copies are uncontrolled Copyright 2007, Ford Global Technologie
8、s, LLC Page 2 of 5 3.4 FILM PROPERTIES 3.4.1 Color and Gloss (FLTM BI 109-01 and BI 110-01) Paint shall match master sample approved by Styling or initial samples submitted on Form 292-A and approved by Quality Control for color match and gloss. 3.4.2 Initial Hardness Shall be sufficiently cured at
9、time of packing to withstand normal handling and shipping without marring. 3.4.3 Film Thickness, min Paint only (FLTM BI 117-01) . Frontal, perpendicular surfaces 25 m (high visible) of radiator grilles and all surfaces of all other parts. . Side, recessed and rear surfaces 13 m of grilles and mirro
10、r shells. 3.4.4 Curing - Painted Chromium Plated Plastic The painted parts shall be conditioned according to one of the following cure schedules before testing durability properties under para 3.5. . 30 min at 71 +/- 3 C . 16 h at 43 +/- 3 C . 72 h at 21 C min 3.5 DURABILITY PROPERTIES 3.5.1 Water R
11、esistance, min 2 h Test Method: Immerse the parts for 2 h in distilled or deionized water at 5 ppm water soluble impurities (NaC1 equivalent) maximum maintained at 38 +/- 1 C as described in FLTM BI 104-01. Remove part from water and wipe dry with a clean unused paper towel or cloth. Parts that are
12、difficult to wipe by hand, particularly in recessed areas, may be blown dry with oil and moisture free compressed air. Immediately apply with firm thumb pressure, ESF-M3G48-A tape to all painted areas of the part. In the event that part complexity requires significant time for tape application, area
13、s of greatest visual contact should be tested first. In no case should the time between dry-off and testing exceed 10 min. Remove the tape by pulling one end at a 90 angle at a moderate speed. ENGINEERING MATERIAL SPECIFICATIONESB-M2P69-C Printed copies are uncontrolled Copyright 2007, Ford Global T
14、echnologies, LLC Page 3 of 5 Evaluate results in the following manner: a. Frontal, Perpendicular Surfaces on Radiator Grilles and All Surfaces on All Other Parts Any removal of paint exceeding 3.2 mm for the longest dimension shall constitute a failure and rejection of that lot. Side, Recessed Surfa
15、ces on Radiator Grilles Any removal of paint exceeding 6.4 mm for the longest dimension shall constitute a failure and rejection of that lot. Non Visible (Rear) Surfaces on Radiator Grilles Any removal of paint exceeding 13 mm for the longest dimension shall constitute a failure and rejection of tha
16、t lot. b. A grid consisting of 100, 6.4 mm squares is to be used according to the following procedure: . The grid is to be placed over the paint separations so that the grid and/or the individual squares encompass the worst combination of separations. . If a paint separation is on the dividing line
17、between two squares, it shall be counted in the square having the most separations. . No paint separation shall be counted twice. Failures are defined as follows: Frontal, Perpendicular and Side, Recessed Surfaces on Radiator Grilles and All Surfaces on All Other Parts . A square is rated a failure
18、if more than 5 spots (of any size) of paint separation occur within any given square. . If more than 2% of the squares in a grid are classified a failure, this shall constitute a lot failure and rejection of that lot. Rear Surfaces on Radiator Grilles . An area of 6.5 cm2 is rated failure if more th
19、an 3 spots of paint separation exceeding 6.4 mm in the longest dimension occur. . If more than 2% of the square areas are classified a failure, this shall constitute a lot failure and rejection of that lot. ENGINEERING MATERIAL SPECIFICATIONESB-M2P69-C Printed copies are uncontrolled Copyright 2007,
20、 Ford Global Technologies, LLC Page 4 of 5 3.5.2 Thermal Cycle - Corrosion Grille Test There shall be no green corrosion on frontal, perpendicular or side, recessed surfaces exposed for 3 complete cycles of the following, in the sequence listed, followed by 48 additional hours of continuous CASS (96
21、 h of total CASS): . 82 +/- 3 C for 2 h . 23 +/- 2 C for 1 h . -34 +/- 1 C for 2 h . 23 +/- 2 C for 1 h . 16 h CASS test per FLTM BO 005-01 3.5.3 Gasoline Resistance Immerse the part in M-14J148 Petroleum Naphtha for 1 h at 21 C minimum. No blistering of the paint is permitted, and only slight softe
22、ning and dulling is permitted. There shall be no color transfer to a soft cloth after wiping the exposed painted surface. 3.5.4 Weathering Resistance, min 400 h (FLTM BO 101-01) A minimum degree of fading, chalking, dulling, or color change. No greater loss of gloss is permitted than equivalent appr
23、oved production colors. This specimen may be a current production part, a similar or previous production part, or a test panel. In all cases, the specimen under test shall be equivalent to current production materials and processing. No increase of brittleness or loss of adhesion is permitted and sp
24、ecimens shall be completely free from evidence of cracking, checking, blistering, or peeling. 3.5.5 Water Resistance After Weathering After parts or test panels have been subjected to the exposure listed in para 3.5.4, (Weathering Resistance), they shall be tested for water resistance using test met
25、hod in para 3.5.1. The conditions for rejection described in para 3.5.1 shall apply to this test. 3.5.6 Thermal Shock Test No loss of adhesion (FLTM BI 107-05) 3.5.7 Salt Spray Resistance, min 96 h (ASTM B 117) This test is to be conducted only on finished parts of dissimilar metals, assembled by an
26、 outside supplier. Test Method: Remove from the salt fog atmosphere and immediately scribe an “X“ through the enamel to the metal. Dry the scribed area with a paper towel, cloth or by air blow off and immediately apply ESF-M3G48 tape with firm thumb pressure. Remove the tape by pulling one end at a
27、90 angle at moderate speed. Removal of the paint beyond 1.6 mm from a scribe line or blistering visible to the naked eye shall be cause for rejection. ENGINEERING MATERIAL SPECIFICATIONESB-M2P69-C Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 5 of 5 3.5.8 Samplin
28、g Samples representing a lot shall be taken from each operator every two hours. One sample is to be tested for water resistance, one sample tested for salt spray resistance when required, one sample tested for thermal cycle-corrosion, when required and one sample tested for gasoline resistance as re
29、quired by the engineering specification. All samples shall be checked for paint film thickness. Samples shall be tested for weathering resistance at a frequency specified by Quality Assurance. If the sample subjected to water resistance fails to meet the engineering requirements, the producer may el
30、ect to resample the lot. Five additional samples shall be selected at random for the same lot and subjected to water resistance testing. If any of the re-samples fail to meet the engineering requirements, or if the producer has not elected to resample, the entire lot must be rejected and either repr
31、ocessed or scrapped. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 MANUFACTURING ENGINEERING REFERENCES All car lines - Process Standard C-250-E. For preparing plain unanodized aluminum surfaces
32、for paint refer to Process Standard PL-52-03 or PL-53-33. 5.2 BODY MATERIAL REFERENCES 5.2.1 Application Over Chrome Plated Metal Surfaces ESB-M2J113 - Quality Baking Enamels 5.2.2 Application Over Chrome Plated Plastic Surfaces ESB-M1J70 - Quality Air Dry Enamel 5.2.3 Application Over Stainless Ste
33、el Surfaces ESB-M2J111 - Quality Baking Enamels 5.2.4 Application Over Anodized Aluminum Surfaces ESB-M2J112 - Quality Baking Enamels 5.2.5 Application Over Chromium Oxide Coated Aluminum Surfaces ESB-M2J67 - Quality Baking Enamels 5.3 RELATED ENGINEERING SPECIFICATION ESB-M6P2 Chromium Oxide Coating for Aluminum and ESB-M4P6 Anodic Coating, Decorative for Exterior Aluminum Parts.
