1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 11 29 Revised See Summary of Revisions C. Mracna, NA 2009 03 25 Re-Activated Still in use at Wayne A. Wedepohl, FNA1998 04 02 Activated L. Mastrofrancesco Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page
2、1 of 2 GREASE, SILICONE, NLGI GRADE 2 WSS-M1C171-A3 1. SCOPE The material defined by this specification is a silicone compound. 2. APPLICATION This specification was released originally as a corrosion and water washout resistant grease used for steering and suspension ball joint boot seals where rub
3、ber to metal lubrication is required. This material is compatible with thermoplastic and thermosetting elastomers typically used for ball joint boot seals. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard R
4、equirements For Production Materials (WSS-M99P1111-A). 3.2 COLOR Gray 3.3 WORKED PENETRATION, tenths of a millimeter 170-230 (ASTM D 217, DIN ISO 2137, 60 stroke) 3.4 BLEED 0.7% max (MIL-S-791 b, Method 321.2, 24 h at 200 C) 3.5 EVAPORATION 2.3% max (MIL-S-791 b, Method 321.2, 24 h at 200 C) 4. GENE
5、RAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Greases approved to this specification should have the following typical properties. 4.1 CORROSION 5.0% max (ASTM B 117, 240 h) (CRS Q-Panel, 0.23 +/- 0.04 mm t
6、hickness) 4.2 WATER WASHOUT 5.0% max (ASTM D 1264, 80 C) ENGINEERING MATERIAL SPECIFICATIONWSS-M1C171-A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 2 4.3 INTERFACE COMPATIBILITY Production representative materials specific to the application should be use
7、d for the following tests. 4.3.1 Chemical Attack to Painted Surfaces (FLTM BJ 126-01) Note: Not tested for initial application of this grease. Grease must be tested for chemical attack to painted surfaces for applications that come in contact with paint surfaces, ex. E-coat and powder coat. 4.3.2 Re
8、sistance to Stress Cracking (FLTM BO 127-03) Note: Not tested for initial application of this grease. Grease must be tested for resistance to stress cracking when used for additional applications that come in contact with polymers such as PC, ABS, PC+ABS, ASA or acrylic. 4.3.3 Elastomer Compatibilit
9、y (ASTM D 4289, 70 h, 100 C, DIN 53505, DIN 53504) Volume change Hardness change, max Tensile Strength change Note: Not tested for initial application of this grease. Grease must be tested for elastomer compatibility when used for additional applications that come in contact with elastomers. Application specific elastomer should be used for testing instead of a reference elastomer. 5. SUMMARY OF REVISIONS 2010 11 29 Lot certification tests moved to requirements. Added information on interface compatibility which are requirements in WSS-M13P13-A. Deleted Supplement C
