1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Ver. 4 2008 08 28 N-STATUS Replaced by WSS-M2P177-B1 or WSS-M2P178-A G. Weber, FNA 2003 08 11 Revised Para 3.0 inserted; Para 3.4 & 4 deleted 1976 04 26 Released AF1-6000-179 Printed copies are uncontrolled Copyright 2008, Ford Global Technolo
2、gies, Inc. Page 1 of 3 PAINT PERFORMANCE, FUNCTIONAL EXTERIOR PARTS - SEVERE DUTY ESB-M2P28-B PAINT PERFORMANCE, FUNCTIONAL EXTERIOR PARTS - MODERATE DUTY ESB-M2P29-B PAINT PERFORMANCE, FUNCTIONAL EXTERIOR PARTS - LIGHT DUTY ESB-M2P30-B NOT TO BE USED FOR NEW DESIGN 1. SCOPE These specifications def
3、ine the performance of a painted finish required for partially visible or non-visible exterior surfaces of automotive parts. Three levels of quality are defined as follows: ESB-M2P28: for parts which are primarily visible and are subject to severe weathering, corrosion or are required to be function
4、al over a long period of time. ESB-M2P29: for parts which are subject to less severe weathering, corrosion or functional requirements. ESB-M2P30: corrosion resistance. 2. APPLICATION These specifications were released originally for a finish specified where adequate weather corrosion resistance is n
5、ecessary. Three quality levels provide flexibility of application and are specified depending on use, position and exposure resistance required. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements
6、 For Production Materials (WSS-M99P1111-A). 3.1 SYSTEM COMPONENTS . Phosphate coat ESB-M3P1 or ESB-M3P2 . One coat baking enamel or primer system Variation in durability is obtained by quality of the primer or enamel used and variation in film thickness. 3.2 FILM PROPERTIES 3.2.1 Initial Hardness Sh
7、all be sufficiently cured at time of packing to withstand normal handling and shipping without marring. 3.2.2 Adhesion No flaking or chipping (FLTM BI 106-01, Method “A“) ENGINEERING MATERIAL SPECIFICATIONESB-M2P28-B ESB-M2P29-B ESB-M2P30-B Printed copies are uncontrolled Copyright 2008, Ford Global
8、 Technologies, Inc. Page 2 of 3 3.2.3 Film Thickness, min (FLTM BI 117-01) ESB-M2P28 . 0.0010 in (25 m). Primer or enamel is generally applied by spray methods for this quality. The specified minimum film thickness applies to all areas. . 0.0005 in (13 m) when parts zinc phosphate coated per ESB-M3P
9、1, are painted with electrocoat primer. . 0.0005 in (13 m) acceptable on dip or flow coat paint processes, provided the painted parts pass 96 h salt spray test without failure as defined in para 3.3.1. ESB-M2P29 . 0.0004 in (10 m). Primer or enamel may be applied by either spray, dip or flow coat me
10、thods. Minimum film thickness does not apply to areas less than 1/2 in (13 mm) from upper edges, holes, embossments, lap joints or seam extension, when parts are dipped or flow coated. ESB-M2P30 . 0.0003 in (8 m), excluding areas within 1/2 in (13 mm) of upper edges, holes, embossments, lap joints o
11、r seam extensions. Primer or enamel is generally applied by dipping or flow coat, but may be electrostatic spray painted. 3.3 SALT SPRAY RESISTANCE (FLTM BI 103-01) Finished parts and control panels shall withstand exposure to 5% salt spray with no failure as follows: Finished Parts (Refer 3.3.3) Co
12、ntrol Panels (Refer 3.3.2) Hours Minimum Hours Minimum ESB-M2P28 96 168 ESB-M2P29 48 120 ESB-M2P30 24 96 3.3.1 Failure is defined as (1) blistering in any area or (2) corrosion creepage or loss of adhesion more than 1/8 in (3 mm) from scratches, score marks or sharp edges. Blistering, corrosion cree
13、page or loss of adhesion in areas 1/4 in (6.4 mm) from upper edges, holes, embossments, lap joints or seam extensions of dipped or flow coated parts or panels shall not be considered failure. Engineering Specification ES-D7AB-1301-AA specifies an approved visual salt spray tested standard on file in
14、 the affected engineering office showing the maximum allowable corrosion for selected parts in lieu of requirements in para 3.3.1. ENGINEERING MATERIAL SPECIFICATIONESB-M2P28-B ESB-M2P29-B ESB-M2P30-B Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, Inc. Page 3 of 3 3.3.2 Pr
15、oduction systems painting parts under this specification shall be tested periodically by running control panels through the complete system including metal cleaning and phosphate coat. Film thickness shall be representative of parts. Control panels shall be flat, 4 x 12 in (100 x 300 mm) approximate
16、ly 20 gauge unpolished, CRLC body steel identified as Paint Testing Quality (PTQ) steel by an embossed letter “F“ on the test side of the panel. Steel for these test panels is specified by Materials Engineering Department, BEPE and selected periodically from coil(s) representative of production stee
17、l employed in Ford production body panels. They shall be scribed as specified in FLTM BI 103-01 before exposure. 3.3.3 Parts tested need not be scribed. They shall be representative of production and shall be exposed in a manner similar to panels. Because of variation in steel surface conditions whi
18、ch cannot be controlled in the cleaning or painting process, minimum salt spray requirements for parts are lower than for control panels. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 MANUFACTURING ENGINEERING REFERENCES Applicable Process Standards are as follows: All units, black C-289 All units color as specified C-290 Head lamp housings C-864 5.2 MATERIAL REFERENCES Full Gloss Semi Gloss Lusterless ESA-M6J66 ESB-M6J72 ESB-M2J104 ESB-M2J53 ESB-M2J200 ESB-M2J200 ESB-M2J54 ESB-M62J7
