1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Para. No. Revisions1983-02-10 3.2.2.3 Revised flash, gates,etc. removed. All visible surfaces shall be highlypolished unless otherwise specified.3.2 RESISTANCE PROPERTIES3.2.1 Resistance RequirementsParts tested as outlined in
2、 Para. 3.2.2 shall conform tothe following:. The finished parts shall not warp, craze, crack orcheck. Bright metallic surfaces shall show no indications ofoxidizing, peeling, blistering, tarnishing, or otherdiscoloration. Colored surfaces shall show no indications of checking,blistering, loss of adh
3、esion, chalking and only slightfading.3.2.2 Resistance Testing3.2.2.1 Resistance to Cycling(FLTM BO 15-1)ENGINEERING MATERIAL SPECIFICATIONESA-M5P7-APage 2 of 33.2.2.2 Resistance to heat3 h at 80 +/- 2 C3.2.2.3 Resistance to humidity 400 h at 98 +/- 2 relativehumidity and 38 +/- 1 C.3.2.2.4 Resistan
4、ce to salt spray, h, min 240 h(ASTM B 117)3.2.2.5 Water Immersion, h, min 240 h(FLTM BI 4-1)3.2.2.6 Gasoline ResistancePlace the finished part in a 600 mL beaker halffull of M14J148 Petroleum Naphtha - Aliphatictype for 1 h at 23 +/- 2 C. Remove the part fromthe Naphtha and rinse with cold tap water
5、 Wipethe part with a soft cloth and examine. Thereshall be no color transfer to the cloth orevidence of degradation of the finished coating.3.2.2.7 Weatherometer, h, min 400 h(FLTM BO 1-1)3.3 REFERENCES3.3.1 Metallic Coating3.3.1.1 Vacuum Metallized (When Applicable)Shall be applied by the vacuum v
6、aporizationprocess over clear coated plastic and shall beprotected by means of a top coat over themetallic coating.3.3.1.2 A hot stamping film which will give the necessaryproperties shall be used.3.3.2 Color Coating3.3.2.1 Paint (When Applicable)Shall conform to the Ford Motor Company materialspeci
7、fication designated on the applicable colorchart.3.3.2.2 Hot Stamped (When Applicable)A hot stamping film which will give the necessaryproperties shall be used.ENGINEERING MATERIAL SPECIFICATIONESA-M5P7-APage 3 of 33.4 SUPPLIERS RESPONSIBILITYMaterial supplied to this specification must be equivalen
8、t to thatoriginally approved. Changes in formulation or processing shallnot be made without prior approval as described in SupplierProcedure I-A.4. APPROVAL OF SUPPLIERSSuppliers to this specification must be approved by the affected productengineering office. Procedure for gaining approval of a specificmaterial to a new existing ES-M specification is contained in SupplierProcedure I-A. Approved new suppliers will be added to the EngineeringMaterials Approved Source List.
