1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 11 17 N-STATUS No known use. No replacement named D. DiGregorio, NA 2004 03 09 Revised Para 3.0 inserted; para 1963 05 29 Released OR2-290 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 2 LUBRICANT
2、, SOLID FILM - MEDIUM ESA-M99C38-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a type of solid film lubricant described as molybdenum disulfide bonded to a phosphate treated metal surface by a thermosetting resin, plus additions of other dry lubricants such a
3、s graphite. It is intended for the coating of metallic parts to materially lower the coefficient of friction and minimize adhesion of parts operating dry. It is also intended to produce a coating on mild steel parts which have corrosion resistance in addition to lubricity. 2. APPLICATION This specif
4、ication was released originally for lubricant used to coat brake adjusting screws, sockets, and nuts. 3. REQUIREMENTS (When applied to phosphate treated surfaces.) 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requireme
5、nts For Production Materials (WSS-M99P1111-A). 3.1 FILM CHARACTERISTICS This material shall form a continuous, homogeneous coating of uniform thickness, free of cracks, blisters and foreign material. 3.2 APPLICATION CHARACTERISTICS This material shall be suitable for application by spraying or dippi
6、ng at room temperature. 3.3 TOXICITY The coating shall not contain chlorinated solvents or other compounds of known high toxicity under normal conditions of usage. 3.4 COLOR Dull charcoal gray to black 3.5 FILM THICKNESS, min 0.0001 in (0.003 mm) 3.6 DRYING TIME 15 min, non-tacky ENGINEERING MATERIA
7、L SPECIFICATIONESA-M99C38-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 2 3.7 SOLIDS 3.7.1 Molybdenum Disulfide, max 45% (ASTM D 128, 5 microns, max) 3.7.2 Graphite 20.0% 3.7.3 Resins 40.0% 3.8 VOLATILE SOLVENT, max 3.8.1 Ethanol 40.0% by volume 3.8.2 Meth
8、yl Isobutyle Ketone (MIBK) 15.0% by volume 3.8.3 Toluene 65.0% by volume 3.8.4 Chlorinated Solvents None 3.9 RESISTANCE TESTS 3.9.1 Salt Spray (ASTM B 117) Finished metal parts or test panels subjected to salt spray exposure for a period of not less than 48 h shall show no more than 10% rust on part
9、s and no rust on panels. The film shall show no softening, peeling, blistering, chipping or loss of adhesion. 3.9.2 Gasoline Immersion (ASTM D 471) Reference fuel B, at room temperature for 72 h. Finished metal parts or test panels shall show no evidence of film failure or loss of adhesion. 3.9.3 Oi
10、l Immersion (ASTM D 471) ASTM Oil No. 3, at room temperature for 72 h. Finished metal parts or test panels shall show no evidence of film failure or loss of adhesion. 3.9.4 Hydraulic Brake Fluid SAE 70R1 at 70 C for 72 h. Finished metal parts or test panels shall show no evidence of film failure or loss of adhesion.
