1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 07 21 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 2001 12 14 Activated L. Soreide Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 2 FLEXIBLE COVERSTOCK, EXTRUDED THERMOPLASTIC WSS-M4D
2、980-A POLYOLEFIN (TPO), INSTRUMENT PANEL 1. SCOPE The material defined by this specification is an extruded thermoplastic polyolefin with a topcoat applied for maintaining color and gloss. The coverstock has a primer on the back surface for foam adhesion. 2. APPLICATION This specification was releas
3、ed originally to be used as flexible cover stock for the instrument panel of the Lincoln LS. 3. REQUIREMENTS This material must also meet the requirements in WSS-M15P45-A and any applicable SDS including but not limited to the IP and PAB SDS. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Materi
4、al suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 TEST SPECIMEN 3.4.1 Preparation of Test Specimens Unless otherwise specified, all tests shall be carried out on specimens die cut from unformed sheets. 3.4.2 Density (+/-
5、 0.5) 0.9 (ISO 1183, Method A) 3.4.3 Hardness, Durometer D 34 (ISO 868, 15 s dwell, +/- 5) 3.4.4 Tensile Strength at Max Load, min 10 MPa (ISO R 527, Type 2, 100 mm/minute test speed machine and transverse direction) 3.4.4.1 Elongation at Break, min 500% (Test Method according to para 3.4.4)3.4.5 Co
6、ld Flexibility at -40 C No cracks (180 bend over a 20 +/- 1mm diameter mandrel, sample size 50 x 150 +/- mm) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D980-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.5 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C coo
7、ling plate, post test conditioning 1 h and 16 h) Fog Number, min 70 Formation of clear film, droplets or crystals is cause for rejection. 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is approximately 355 x 100 x extruded coverstock thickne
8、ss not to exceed 13 mm. The thickness must be documented on the report. 3.7 ODOR Rating 2 (FLTM BO 131-01) 3.8 MATERIAL PERFORMANCE TESTING The materials approved to this specification must meet the performance specification WSS-M15P45-A for Instrument Panels and the applicable SDS such as the IP-SD
9、S. If the final assembly contains an integrated airbag the material must meet the PAB-SDS and Restraints must be contacted for all requirements. Once documentation is provided that this testing is complete the material will be added to the approved source list. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 RECYCLING CODE TEO
