1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2012 02 16 Activated A. Wedepohl, NA Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of 2 GREASE, LITHIUM SOAP, SYNTHETIC HYDROCARBON WSS-M1C279-A 1. SCOPE The material defined by this specification
2、 is grease consisting of a polyalphaolefin base oil thickened with a lithium soap. NLGI grade 2. 2. APPLICATION This specification was released originally for low current electrical switch contacts and then HVAC mechanical air delivery vents. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION
3、MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 COLOR Light Tan/Yellow (Visual) 3.3 WORKED PENETRATION, tenths of a millimeter (ASTM D217, DIN ISO 2137) 3.5.1 Unworked Penetration, Zero Strokes 260 min
4、3.5.2 Worked Penetration, 60 strokes 265 295 3.4 DROPPING POINT 193 C min (ASTM D2265, DIN ISO 2176) 3.5 OIL SEPARATION FROM GREASE 5% max (ASTM D1742, DIN 51817 or FTMS 791 C 321.3, 24 hr at 100C) 3.6 EVAPORATION (ASTM D972, 24h at 100 C) 1% max 4. GENERAL INFORMATION This information given below i
5、s provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. Grease approved to this specification should have the following typical properties. 4.1 BASE OIL VISCOSITY (ASTM D445, DIN 51562, ISO
6、3104) 4.1.1 Kinematic Viscosity at 100 C 6.0 mm2/s 4.1.2 Kinematic Viscosity at 40C 33.0 mm2/s ENGINEERING MATERIAL SPECIFICATION WSS-M1C279-A Copyright 2012 Ford Global Technologies, LLC Page 2 of 2 4.2 OIL SEPARATION FROM GREASE 2.9% (ASTM D1742, DIN 51817 or FTMS 791 C 321.3, 24 hr at 100C) 4.3 O
7、IL SEPARATION DURING STORAGE No data (ASTM D1742, DIN 51817 or FTMS 791 C 321.3, 24 h at 25C) 4.4 EVAPORATION (ASTM D972, 24h at 100 C) 0.1% 4.5 4 BALL WEAR TEST, WEAR SCAR 0.43 mm (ASTM D2266, DIN 51350 T 5, 40 kg, 1200 rpm, 75 C, 1 h) 4.6 OXIDATION STABILITY (ASTM D942 or DIN 51808, 100hr at 99C)
8、13.6 kPa 4.7 COPPER CORROSION 2B (ASTM D4048, 30 hr at 120C) 4.8 WATER WASHOUT No data (ASTM D1264, DIN 51807 T02, 38 C) 4.9 LOW TEMPERATURE TORQUE (ASTM D1478 or IP 186) -40 C start 738 g/cm -40 C running at 10 min 295 g/cm -40 C running at 60 min 171 g/cm 4.10 INTERFACE COMPATIBILITY 4.10.1 Chemic
9、al 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. 4.10.2 Resistance to Stress Cracking (FLTM BO
10、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 4.10.3 Elastomer Compatibility (ASTM D4289, 70 h, 100 C, DIN 53505
11、, DIN 53504) 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. Determine change in volume, hardness change tensile strength and elongation.
