1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 10 22 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 2001 12 14 Activated B. Hennessey Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1 of 2 THERMOPLASTIC ELASTOMER (TES) STYRENE BLOCK WSS-M2
2、D505-A COPOLYMER, 40 DUROMETER D HARDNESS, EXTERIOR 1. SCOPE The material defined by this specification is a thermoplastic elastomer styrene block copolymer. 2. APPLICATION This specification was released originally for material used as a wheel arch liner seal. 3. REQUIREMENTS Material specification
3、 requirements are to be used for initial qualification of materials. 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 SPECIMENS 3.4.1 Preparation of T
4、est Specimens Unless otherwise specified, all test shall be conducted on specimens die cut from injection molded plaques 150 x 150 x 2.0 +/- 0.2 mm. The plaques shall be molded according to ISO 294 and film gated along the upper 100 mm edge. No annealing allowed, unless specified otherwise. 3.4.2 De
5、nsity, g/cm31.10 +/- 0.05 (ISO 1183, Method A) 3.4.3 Hardness, Durometer D 40 +/- 5 (ISO 868, instantaneous, plied-up specimen. Hand held durometers shall not be used) 3.4.4 Tensile Strength, min Parallel 14.0 MPa (ISO R 527, type 2, to Flow 500 mm/minute test speed) Across Flow 14.0 MPa 3.4.5 Elong
6、ation at Break, min Parallel 35% (Test acc. to para 3.4.4) to Flow Across Flow 35% 3.4.6 Modulus at 100% Elongation, min Parallel 13.5 MPa (Test acc. to para 3.4.4) to Flow Across Flow 13.5 MPa ENGINEERING MATERIAL SPECIFICATIONWSS-M2D505-APrinted copies are uncontrolled Copyright 2004, Ford Global
7、Technologies, LLC Page 2 of 2 3.4.7 Tear Strength, min Parallel 70 kN/m (ISO 34, Method B, Procedure A) to Flow Across Flow 70 kN/m 3.4.8 Compression Set, max 33% (ISO 815, Large Type-plied specimen) 3.4.9 Brittleness Point, max -40 C (ISO 812, Type B specimen) 3.4.10 Ozone Resistance, max Rating 0
8、(FLTM BP 101-01, Procedure A, tensile specimen, at 20% elongation) 3.5 HEAT AGEING (ISO 188, 150 +/- 50 air changes/h, 1000 h at 125 +/- 2 C) Hardness Change, max +/- 5 Tensile Strength Change, % max +90 Elongation Change, % max +50 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 2.0 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 RECYCLING INFORMATION TES
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