1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 12 08 Activated L. Schmalz Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 3 FLEXIBLE COVERSTOCK, SLUSH MOLDABLE POLYVINYL WSS-M4D985-A2 CHLORIDE (PVC), DOOR TRIM PANEL 1. SCOPE The material defined
2、 by this specification is a dry blended slush molded polyvinyl chloride skin that is both UV and heat stabilized and is used as a formed door trim panel coverstock. 2. APPLICATION This specification was released originally to be used as flexible cover stock for the door trim panel of the Navigator.
3、3. REQUIREMENTS This material must also meet the requirements in WSS-M15P4-E and any applicable SDS including but not limited to the INTRIM. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Mate
4、rials (WSS-M99P1111-A). 3.2 TEST SPECIMEN 3.2.1 Preparation of Test Specimens Unless otherwise specified, all tests shall be carried out on specimens die cut from unformed sheets. 3.2.2 Specific Gravity (+/- 0.1) 1.17 (ASTM D 792) 3.2.3 Hardness, Durometer 75 (15 s dwell, +/- 5) 3.2.4 Tensile Streng
5、th at Max Load, min 10 MPa (ASTM D 638, 500 mm/minute test speed machine and transverse direction) 3.2.4.1 Elongation at Break, min 250% (Test Method according to para 3.2.4) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D985-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC
6、 Page 2 of 3 3.2.5 Cold Flexibility at -40 C No cracks (180 bend over a 20 +/- 1 mm diameter mandrel, sample size 50 x 150 +/- mm) 3.2.6 Tear Strength, min 40 kN/m (ASTM D 1004, 50 mm/minute test speed.) 3.2.7 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 120 C, unaged
7、property values shall be determined at the time of the aged properties determination) 3.2.7.1 Tensile Strength Change, max. +/- 25% 3.2.7.2 Elongation at Break, Change from Original Value, max +/- 50% (100% absolute elongation minimum) 3.3 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate
8、 post test conditioning 1 h and 16 h) Fog Number, min 70 Formation of clear film, droplets or crystals is cause for rejection. 3.4 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is approximately 355 x 100 x extruded coverstock thickness not to
9、exceed 13 mm. The thickness must be documented on the report. 3.5 ODOR Rating 2 (FLTM BO 131-01) 3.6 MATERIAL PERFORMANCE TESTING The materials approved to this specification must meet the performance specification WSS-M15P4-E for Door Trim Panels and the applicable SDS such as the INTRIM-SDS. Once
10、documentation is provided that this testing is complete the material will be added to the approved source list. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D985-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 3.7 WEATHERING RESISTANCE After exposure the mater
11、ial shall show no fading or color change in excess of specified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 105-A02). In addition, there shall be no cracking, crazing or other deterioration. Filtered Xenon Arc Weatherometer Rating 4 (SAE J1885 modified (FLTM BO 116-01), 1052.8 kJ/m2exposure min, specimen size: 60 x 140 mm min) 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 RECYCLING CODE
