1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Ver.1 2013 10 31 N Status No replacement named D. Murtonen, NA 2011 04 04 A1/A2 Activated Replaces WSD-M2F178-A Mark Montgomery, FoE Controlled document at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 3 FABRIC, VINYL COATE
2、D, MULTI-PURPOSE WSS-M2F178-A1 FABRIC, VINYL COATED, ANTI-SQUEAK FINISH WSS-M2F178-A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by these specifications is an expanded polyvinyl chloride film laminated to a knitted polyester fabric. WSS-M2F178-A1 and WSS-M2F178-A2 can be used lamina
3、ted with foam and/or a backing fabric/scrim, based on application. WSS-M2F178-A2 material has an anti-squeak finish. 2. APPLICATION WSS-M2F178-A1 specification was released originally for material used in interior trim as a covering for VE83 MYXX seat applications in lower wear areas and interior do
4、or inserts WSS-M2F178-A2 was originally developed for anti-squeak interior applications, such as door inserts, head rest, arm rest, seat side facings. Any other application must be evaluated and approved by Design Engineer and Materials Engineer. 3. REQUIREMENTS In addition to the requirements liste
5、d herein, this material shall meet all appropriate requirements of the WSS-M8P3-E1/2/3/Latest, Performance, Flexible Polymeric Film, Interior Quality specification. Assemblies specifying WSS-M2F178-A1/A2 must also meet the requirements of the WSS-M15P4-F/latest, Assembly Performance, Hard Interior C
6、omponents. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements for Production Materials (WSS-M99P1111-A). 3.2 APPEARANCE (FLTM BI 109-01) The color, pattern, gloss level and finish shall match the approved Corpor
7、ate Design master sample, or shall be as specified on the engineering drawing. 3.3 SUPPORTED FABRIC 3.3.1 Composition (ASTM D 276) Fabric 100% Polyester Warp knit fabric ENGINEERING MATERIAL SPECIFICATION WSS-M2F178-A1/A2 Copyright 2013, Ford Global Technologies, LLC Page 2 of 3 3.3.2 Weight 65 g/m2
8、 +/- 10% (ASTM D 751, Sample Method) 3.3.3 Breaking Strength (ASTM D 5034, Grab Method) WMD 200 N min AMD 250 N min 3.4 VINYL COATED FABRIC 3.4.1 Weight (ASTM D 751, Sample Method) Total (vinyl and supported fabric) 513 627 g/m2 3.4.2 Breaking Strength (ASTM D 751, Grab method) WMD 350 N min AMD 350
9、 N min 3.4.3 Tear Strength (ASTM D 751, Integration Method) WMD 55 N min AMD 65 N min 3.4.4 Seam Strength (FLTM BN 119-01) WMD 350 N min AMD 350 N min 3.4.5 Dimensional Stability (SAE J883, 15 minutes at 100 C) WMD +/- 2 % max AMD +/- 1 % max 3.4.6 Low Temperature Impact 4 J min (FLTM BN 128-01, - 3
10、5 C) Original Heat Aged (7 days at 80 C) No visible cracking when tested as received and after heat ageing. ENGINEERING MATERIAL SPECIFICATION WSS-M2F178-A1/A2 Copyright 2013, Ford Global Technologies, LLC Page 3 of 3 4 GENERAL INFORMATION 4.1 Laminated materials must meet the lamination requirement according to WSS-M8P3-E3/latest. 4.2 For specifications WSS-M2F178 A1/A2 the material when built up into an assembly in the intended vehicle shall show no evidence of squeaking on drive appraisal. Anti squeak properties to be evaluated per application by Product Engineer and/or NVH Department
