1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 07 28 N-STATUS Replaced by WSS-M2P109-B C. Mracna 2003 08 13 Revised Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.12, 4 deleted 1977 01 25 Released CAF2 761298 E. P. Francis Printed copies are uncontrolled Copyright 2006, Ford Global Technolo
2、gies, LLC Page 1 of 2 PAINT QUALITY, COLOR AND CLEAR COATING - ESA-M2P109-A EXTERIOR PARTS NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the performance requirements for color and clear coating over aluminum substrates exposed to severe exterior service conditions. 2. APPLICATION
3、 This specification was released originally for full or partially painted aluminum wheels which also requires a clear coating. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppli
4、ers 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 of blisters, bubbles, foreign material and similar imperfections. 3.5 FILM PROPERTIES 3.5.1 Film Thickness, min (FLTM BI 117-01) Primer 20
5、 m Color 18 m Clear 25 m Primer and Color usage will be defined on the Engineering Drawing. 3.5.2 Initial Hardness Production parts shall be sufficiently cured at time of packing to withstand normal handling without marring. 3.5.3 Color and Gloss (FLTM BI 109-01 and BI 110-01) Paint suppliers must c
6、ertify color and gloss as required on engineering drawing for each batch of paint. Paint areas and gloss levels on wheels must match master samples originally approved by Styling. ENGINEERING MATERIAL SPECIFICATIONESA-M2P109-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies,
7、 LLC Page 2 of 2 3.6 THERMAL SHOCK TEST (FLTM BI 107-05) No loss of adhesion or blistering. 3.7 GASOLINE RESISTANCE No dulling, blistering of softening after 1 h immersion in petroleum naptha (M14J148) at room temperature. 3.8 WEATHERING RESISTANCE, min 400 h (FLTM BO 101-01) No evidence of yellowin
8、g, crazing, checking, chalking or other degradation in film appearance after exposure to accelerated weathering. 3.9 SALT SPRAY RESISTANCE, min 240 h (ASTM B 117) After completion of salt spray cycle there shall be no corrosion spreading beyond damaged area or any other area. Test Method: Subject sa
9、mple to 1 cycle of gravelometer damage per SAE J400. Expose sample to salt spray. 3.10 WATER RESISTANCE (FLTM BI 104-01 except 38 +/- 1 C) 96 h No blistering, dulling, or loss of adhesion after applying tape (ESF-M3G48-A) overcoated or painted areas that have been scribed with an X after exposure to water. 3.11 FILLIFORM RESISTANCE (FLTM BI 124-01) . Clear coated surfaces only 400 h No more than 1.6 mm corrosion or loss of adhesion from the scribe line. . Painted and clear coated surfaces 800 h No more than 0.80 mm corrosion or loss of adhesion from the scribe line.
