1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2001 08 10 Revised Revised Para 3.11 B Hennessey 2001 03 05 Revised Revised Para. 3.10 Note. & updated B Hennessey 1992 05 11 C10205969 Released P Thomas Printed copies are uncontrolled Page 1 of 6 Copyright
2、 2001, Ford Global Technologies, Inc. THERMOPLASTIC ELASTOMER (TEO) WSD-M2D378-A2 POLYOLEFIN, EPDM RUBBER MODIFIED MODERATE HEAT RESISTANT 60 DUROMETER A HARDNESS, INTERIOR THERMOPLASTIC ELASTOMER (TEO) WSD-M2D379-A2 POLYOLEFIN, EPDM RUBBER MODIFIED MODERATE HEAT RESISTANT 69 DUROMETER A HARDNESS, I
3、NTERIOR THERMOPLASTIC ELASTOMER (TEO) WSD-M2D380-A2 POLYOLEFIN, EPDM RUBBER MODIFIED MODERATE HEAT RESISTANT 75 DUROMETER A HARDNESS, INTERIOR THERMOPLASTIC ELASTOMER (TEO) WSD-M2D381-A3 POLYOLEFIN, EPDM RUBBER MODIFIED MODERATE HEAT RESISTANT 83 DUROMETER A HARDNESS, INTERIOR 1. SCOPE The materials
4、 defined by these specifications are colored and U.V. stabilized thermoplastic elastomers (TEO) for interior use of nominal instantaneous Durometer. A hardnesses ranging from 60 to 83 having good long term resistance to heat at temperatures up to 125 C. Being thermoplastic, the material will soften
5、and creep at temperatures exceeding 165 C. 2. APPLICATION These specifications were released originally for materials used for general interior components which are color keyed such as seals, bezels, gaskets and edge strips. The materials can be processed by conventional thermoplastics molding techn
6、iques such as injection molding, extrusion and blow-molding. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to the Companys Quality System Requirements. WSD-
7、M2D378-A2 WSD-M2D379-A2 WSD-M2D380-A2 ENGINEERING MATERIAL SPECIFICATION WSD-M2D381-A3 Page 2 of 6 Copyright 2001, Ford Global Technologies, Inc. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS IR spectra and thermograms established for initial approval shall constitute the reference standard
8、 and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. 3.3 DYNAMIC MECHANICAL ANALYSIS (ASTM D 4065) Ford Motor Company, at its option, may establish shear
9、 modulus/damping vs. temperature curves plotted for -50 to + 170 C temperature range for material/parts supplied to this specification. The shear modulus and damping curves established for initial approval shall constitute the reference standard and shall be kept on file at the designated material l
10、aboratory. All samples shall produce shear modulus and damping curves that correspond to the reference standard when tested under the same conditions. 3.4 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and
11、50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. 3.5 PREPARATION OF TEST SPECIMENS Unless otherwise specified, all test shall be conducted on specimens die cut from injection molded plaques 150 x 100 x 2.0 +/- 0.2 m
12、m. The plaques shall be molded according to ISO 294 and film gated along the upper 100 mm edge, and preceded by a 0.8 mm diameter pin gate. No annealing allowed, unless specified otherwise. 3.6 FINISHED PART REQUIREMENTS The finished part must conform with the requirements of the performance specifi
13、cation WSK-M98P5-A. 378-A2 379-A2 380-A2 381-A3 3.7 DENSITY, +/- 0.05 g/cm3 (ISO 1183, Method A /ASTM D 792, Method A1) 0.99 0.99 0.99 0.99 3.8 HARDNESS, INTERNATIONAL (ISO 48/ASTM D 1415) 60 - 70 70 - 80 75 - 85 85 - 95 WSD-M2D378-A2 WSD-M2D379-A2 WSD-M2D380-A2 ENGINEERING MATERIAL SPECIFICATION WS
14、D-M2D381-A3 Page 3 of 6 Copyright 2001, Ford Global Technologies, Inc. 378-A2 379-A2 380-A2 381-A3 3.9 HARDNESS, DUROMETER A (ISO 868/ASTM D 2240, instantaneous, plied-up specimen) 55 - 65 64 - 74 70 - 80 78 - 88 3.10 TENSILE STRENGTH, MPa, min (ISO R 527, type 2/ASTM D 412, Die C, 500 mm/min test s
15、peed. Measured Parallel to Flow) 3.0 3.5 5.0 8.0 3.10.1 Elongation at Break, % min (Test per para 3.10) 100 100 175 250 3.11 MODULUS AT 100 % ELONGATION, min. (Test per para 3.10) 2.2 3.1 3.6 5.6 3.12 TEAR STRENGTH, kN/m, min (ISO 34, Method B, procedure a/ ASTM D 624, Die C) 3.12.1 Parallel to Flow
16、 15 15 20 40 3.12.2 Perpendicular to Flow 15 15 20 40 3.13 COMPRESSION SET, %, max (ISO 815, Large Type plied specimen/ /ASTM D 395, Method B, Type 1 plied specimen) 3.13.1 22 h at 70 +/- 1 C 35 45 50 50 3.13.2 70 h at 125 +/- 2 C 55 70 75 90 3.14 BRITTLENESS POINT, C max (ISO 812, Type B specimen/
17、ASTM D 2137, Method A) - 50 - 50 - 50 - 50 3.15 OZONE RESISTANCE, Rating, max (FLTM BP 101-01, at 20 % elongation) 0 0 0 0 WSD-M2D378-A2 WSD-M2D379-A2 WSD-M2D380-A2 ENGINEERING MATERIAL SPECIFICATION WSD-M2D381-A3 Page 4 of 6 Copyright 2001, Ford Global Technologies, Inc. 378-A2 379-A2 380-A2 381-A3
18、 3.16 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 125 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination.) Hardness Change, max + 5 + 5 + 5 + 5 Tensile Strength Change, % max +/- 30 +/- 30 +/- 30 +/- 20 Elongation Change, % max
19、 +/- 35 +/- 35 +/- 35 +/- 40 3.17 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 70 Formation of clear film, droplets or crystals is cause for rejection. 3.18 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size re
20、quired for material approval is 355 x 100 x 2.0 +/- 0.1 mm with a smooth surface. 3.19 WEATHERING RESISTANCE After exposure in accordance with 3.19.1 and 3.19.2 the material shall show no fading or color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in color, 10
21、Step). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and water (ratio 5:95 by volume). All initial approvals will be based on the preliminar
22、y Weatherometer exposure, pending Florida exposure results for final approval. WSD-M2D378-A2 WSD-M2D379-A2 WSD-M2D380-A2 ENGINEERING MATERIAL SPECIFICATION WSD-M2D381-A3 Page 5 of 6 Copyright 2001, Ford Global Technologies, Inc. 3.19.1 Xenon Arc Weatherometer Rating 3 (SAE J1885, 1000 kJ/m2 exposure
23、 minimum, specimen size: 150 x 100 mm minimum, 2.0 +/- 0.2 mm thick, molded in smooth polished mold) 3.19.2 12 months Florida Rating 3 (FLTM BI 160-01, 5 deg south, under glass specimen size: 150 x 100 mm minimum 2.0 +/- 2.0 mm thick molded in smooth polished mold) 3.20 SUPPLIERS RESPONSIBILITY All
24、materials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved under this specification, whether or not such changes affect the materials ability to meet th
25、e specification requirements, the Supplier shall notify the affected Purchasing, and Materials Engineering activities (with reasons) of the proposed changes. Upon notification of the Company, further instructions will be provided. Note: Suppliers should be prepared to provide test data and samples d
26、emonstrating compliance to this specification, if requested. Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in Restricted Substance Management Standard WSS-M99P9999-A1. 4. APPROVAL OF MATERIALS:
27、Materials defined by this specification for direct supply to the Company must have prior approval. Certain materials subcontracted by part suppliers may also require prior approval. These include materials critical to the Companys business for regulatory, safety, environmental or compatibility requi
28、rements or contractual agreements. Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Materials Engineering activity. Upon request, the Supplier shall submit a completed copy of their laboratory test reports, signed by a qualified a
29、nd authorized representative of the test facility, demonstrating full compliance with all the requirements of this specification. WSD-M2D378-A2 WSD-M2D379-A2 WSD-M2D380-A2 ENGINEERING MATERIAL SPECIFICATION WSD-M2D381-A3 Page 6 of 6 Copyright 2001, Ford Global Technologies, Inc. 5. GENERAL INFORMATI
30、ON: The information given below is provided for clarification and assistance in meeting the requirements of this specification. 378-A2 379-A2 380-A2 381-A3 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION, E-6/C (ASTM D 696) 8.2 8.2 8.2 8.2 5.2 MOLD SHRINKAGE (ISO 2577, 150 x 100 x 2.0 +/- 0.2 mm injecti
31、on molded specimen) 5.2.1. Molding Shrinkage After 48 h at 23 +/- 2 C, mm/mm . Length TBE 0.027 TBE TBE . Width TBE 0.023 TBE TBE 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 +/- 2 C . Length TBE 0.008 TBE TBE . Width TBE 0.008 TBE TBE 5.3 HARDNESS, DUROMETER A (ISO 868/ASTM D 2240, 5 second delay, plied-up specimen) TBE 62 - 72 TBE TBE 5.4 RECYCLING CODE TEO
