1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 07 15 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.8 & 4 deleted 1986 11 13 Revised & Retyped CAQ1-RD5393981983 07 19 Released CLN1-DR503827-2Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1 of 2 SI
2、LICONE ELASTOMER, INHERENTLY ESB-M2D280-A2 LUBRICATED - POLYCARBONATE COMPATIBLE 1. SCOPE The material defined by this specification is an inherently lubricated silicone elastomer that is compatible with polycarbonate. 2. APPLICATION This specification was released originally for material used for t
3、he plastic aerodynamic headlamp O-ring seal. 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 MOLDED TEST SPECIMEN 3.4.1 Color Natural 3.4.2 Lubri
4、cant Bleed An ASTM test slab observed 24 h after molding must show evidence of lubricant bleed. 3.4.3 Specific Gravity 1.18 - 1.42 3.4.4 Hardness, Durometer A 45 - 55 (ASTM D 2240) 3.4.5 Tensile Strength, min 5.5 MPa (ASTM D 412, Die C) Elongation, min 300% 3.4.6 Tear Strength, min 8.7 kN/m (ASTM D
5、624, Die B) 3.4.7 Compression Set, max 50% (ASTM D 395, Method B, 22 h at 175 C) ENGINEERING MATERIAL SPECIFICATIONESB-M2D280-A2Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 2 3.5 HEAT AGED (ASTM D 865, 70 h at 232 +/- 2 C) 3.5.1 Hardness, Durometer A 45 - 7
6、0 (ASTM D 2240) 3.5.2 Tensile Strength, min 3.0 MPa (ASTM D 412, Die C) 3.5.3 Elongation, min 150% (ASTM D 412, Die C) 3.6 IMMERSION IN ASTM NO. 3 OIL (ASTM D 471, 70 h at 150 +/- 2 C) 3.6.1 Hardness, Durometer A Change, max -25 (ASTM D 2240) 3.6.2 Tensile Strength, min 1.9 MPa (ASTM D 412, Die C) 3
7、6.3 Elongation, min 175% (ASTM D 412, Die C) Volume Change, max +50% 3.7 MOLDED PART 3.7.1 Color As specified on engineering drawing 3.7.2 Additional Requirements Specific requirements of the molded part shall be specified on the engineering drawing and/or engineering part specification. 3.7.3 Comp
8、atibility with Polycarbonate (FLTM BO 127-03) The molded test bars shall show no evidence of cracking or crazing after the following exposures: 3.7.3.1 168 h at +/- 2 C, 1.0% strain. 3.7.3.2 70 h at 85 +/- 2 C, 0.5% strain. 3.7.3.3 1,000 h at 93 +/- 2 C, 0.2% strain. Test Materials: ESB-M4D100-A1, ESB-M4D100-A2 and ESB-M4D100-A3 or other affected polycarbonate compounds.
