1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 09 12 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9 and 4; Corrected numbering 3.8 1993 07 29 Released NB00E10043054272 JAF/GAM Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 2 COATING, HEAT RES
2、ISTANT, BLACK WSB-M91J9-A 1. SCOPE The material defined by this specification is a low reflective, heat stable black coating suitable for high temperature in confined areas after proper cure. 2. APPLICATION This specification was released originally for material used for a low reflective coating on
3、headlamp heat shields. 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 COMPOSITION 3.4.1 Resin Phenyl methyl polysiloxane resin. 3.4.2 Pigments I
4、norganic, heat stable pigments suitable for high temperature applications as defined in the specification. 3.5 PHYSICAL PROPERTIES 3.5.1 Non-Volatile Content 59% (FLTM BI 102-01) 3.5.2 Weight per Volume 51% (ASTM D 1475) 3.5.3 Viscosity 22 - 28 (ASTM D 3794, Zahn #2 cup) 3.5.4 Stability Less than 10
5、 s change (FLTM BI 102-03) in viscosity 3.5.5 Dry Hiding, max 20 (FLTM BI 101-01) ENGINEERING MATERIAL SPECIFICATIONWSB-M91J9-APrinted copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 2 3.6 PREPARATION OF TEST PANELS Actual production parts or clean chrome plated steel
6、 back side (deficient plating). 3.7 APPEARANCE 3.7.1 Color and Gloss (FLTM BI 109-01/FLTM BI 110-01) Shall match Ford Motor Company master panel, usually H or J gloss. 3.7.2 Leveling The primer film shall level with a minimum of orange peel. The surface of the material under test shall be equal to o
7、r better than current approved production material for smoothness when applied and baked under identical conditions. 3.8 FILM PROPERTIES 3.8.1 Adhesion, min 3B (ASTM D 3359, Method B) 3.8.2 Gloss (FLTM BI 110-01, 60 glossmeter) The gloss shall be specified by means of a letter suffix to the color nu
8、mber assigned by styling (listed below), or on the engineering drawing. A 92 min F 35 +/- 3 B 80 +/- 4 G 20 +/- 3 C 70 +/- 4 H 10 +/- 3 D 62 +/- 3 J 6 max E 50 +/- 3 3.8.3 Impact Resistance 1.4 J (FLTM BI 108-01) 3.8.4 Salt Spray Resistance 96 h (FLTM BI 103-01) No failure in the specified times by
9、blistering, rusting or more than 3 mm creepage from edges. 3.8.5 Heat Resistance No blisters or peeling Place part in a laboratory furnace set below 200 C. Heat to 350 +/- 5 C and hold at temperatue for 8 h. Remove from furnace and allow to stand at room temperature for 16 h. Repeat three times. There shall be no peeling, flaking or blistering of the paint film.
