1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 09 10 N-STATUS Replaced by WSS-M4D1051-A1, WSS-M4D1052-A2, WSS-M4D1053-A1 WSS-M4D1053-A2 L. Soreide, NA 2005 12 08 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1990 02 01 Released C 01031532 K. Gerhards Printed copies are unc
2、ontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 2 POLYCARBONATE (PC) FILM, TRANSLUCENT WSK-M4D718-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a translucent polycarbonate film printed and/or painted on face and/or reverse side. The film may
3、 have a pressure sensitive adhesive on the reverse side. 2. APPLICATION This specification was originally released for material used as instrument cluster dial. 3. REQUIREMENTS In addition to the requirements listed herein, assemblies using this material shall meet all the requirements of the approp
4、riate assembly performance specification. 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 APPEARANCE (FLTM BI 109-01) The color, pattern and finish shall match t
5、he approved Design Center master sample or shall be as specified on the engineering drawing. 3.5 TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified, all tests shall be conducted on die cut specimens. 3.5.2 Thickness 0.25 +/- 0.03 mm (ISO 4593/ASTM D 374, Method C) 3.5.3 Den
6、sity 1.18 - 1.22 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.4 Tensile Strength at Break, min 55 MPa (ISO R 527, type 2/ASTM D 638M, type M-II, 100 mm/minute test speed) 3.5.4.1 Elongation at Break, min 65% (Test according to para 3.5.4) 3.5.5 Tear Strength, min 100 kN/m (ISO 34, Method B, P
7、rocedure a/ASTM D 624, Die C, except 50 mm/minute test speed) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D718-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 2 3.5.6 Flexibility at -30 C No cracks(FLTM BN 102-01, except 180 bend over 19 - 20 mm diameter mandrel
8、) 3.5.7 Dimensional Stability Dimensional Change, max 0.5% Test Method: A specimen approx. 300 x 300 mm in size shall be placed in a mechanical convection oven (150 +/- 50 air changes/h) maintained at 90 +/- 2 C for 3 h. Dimensional changes shall be measured after cooling down to room temperature. 3
9、5.8 Fogging (FLTM BO 116-03) Fog Number, min 80 Formation of excessive amounts of clear film or droplets is cause for rejection. 3.5.9 Odor, max Rating 2 (FLTM BO 131-01/SAE J 1351) 3.6 COATING AND ADHESION Refer to applicable performance specification 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 0.25 +/- 0.1 mm with a smooth surface.
