1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2012 02 16 N Status Replaced by WSS-M2P142-B C. Mracna,NA 2007 06 19 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9 & 4 1990 12 05 NC00E10079772002 Released R.W. Ocobach Controlled document at www.MATS Copyright 2012, Ford Global Technologi
2、es, LLC Page 1 of 1 PAINT PERFORMANCE, EXTERIOR PARTS ESA-M2P142-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the performance requirements for coating over lead and steel substrates exposed to severe exterior service conditions. 2. APPLICATION This specification was released o
3、riginally for painted wheel balance weights. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 COATING Shall be a continuous film free or blisters,
4、 bubbles, foreign material, and similar imperfections. 3.5 FILM PROPERTIES 3.5.1 Film Thickness 38 - 76 micrometre (FLTM BI 117-01) 3.5.2 Initial hardness Production parts shall be sufficiently cured at time of packing to withstand normal handling without marring. 3.6 SALT SPRAY, min 500 h (ASTM B 1
5、17) No red rust or white corrosion allowed. 3.7 THERMAL SHOCK TEST (FLTM BI 107-05) No loss of adhesion or blistering 3.8 WATER RESISTANCE 240 h (FLTM BI 104-01 except 38 +/- 2 C) No blistering, dulling or loss of adhesion after applying tape (ESB-M3G48-A) overcoated or painted areas that have been scribed with an X after exposure to water.
