1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Para. No. Revisions1978 11 27 Metricated and Retyped CAH1-RD572066-11968 03 18 Released AX1-1115WP 3948-a Page 1 of 2PAINT PERFORMANCE, REFLECTIVE SURFACE - MODERATE EXPOSURE ESB-M2P84-A1. SCOPEThis specification defines the p
2、erformance of paint on the reflectivesurface of metal or plastic lamp bodies which are covered by a lens.2. APPLICATIONThis specification was released originally for a finish used for thereflective surface of lamp bodies.3. REQUIREMENTS3.1 FILM PROPERTIES3.1.1 Initial HardnessShall be sufficiently c
3、ured at time of packing to withstandnormal handling and shipping without marring.3.1.2 Adhesion No flaking or chipping(FLTM BI 6-1)3.1.3 Film Thickness, min 0.0008 in (20 m)(FLTM BI 17-1)3.2 DURABILITY PROPERTIES3.2.1 Water Resistance, min 48 h(FLTM BI 4-1)3.2.2 Weathering Resistance, min 200 h(FLTM
4、 BO 1-1)Shall show a minimum degree of fading, chalking, dulling orcolor change. No greater loss of gloss is permitted thanequivalent approved production materials. The testspecimen may be a current production part, or a test panel.In all cases the specimen under test shall be equivalent tocurrent p
5、roduction materials and processing. Specimensshall be completely free from evidence of cracking,checking, blistering, peeling or rusting.3.3 SUPPLIERS RESPONSIBILITYMaterial supplied to this specification must be equivalent to thatoriginally approved. Changes in formulation or processing shallnot be
6、 made without prior approval as described in SupplierProcedure I-A.ENGINEERING MATERIAL SPECIFICATION ESB-M2P84-AWP 3948-b Page 2 of 24. 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.
