1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2013 07 03 N Status Replaced by WSS-M99P32-C L. Soreide, NA 2006 03 17 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1991 03 01 Released EP00E01089482000 K. Gerhards Controlled document at www.MATS Copyright 2013, Ford Glob
2、al Technologies, LLC Page 1 of 2 POLYVINYL CHLORIDE (PVC) FOAM, CLOSED CELL WSK-M4D805-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a closed cell polyvinyl chloride foam. 2. APPLICATION This specification was released originally for material used as an anti-
3、rattle strip on wheelhouse trim moldings. 3. REQUIREMENTS 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 The foam shall have a homogeneous medium siz
4、ed cell structure with no large voids or solid spots which may impair the serviceability of the part. 3.5 TEST SPECIMEN The following material properties are based on foam material with surface skin removed. 3.5.1 Density, min 125 kg/m3 (ISO 845/ASTM D 3574, Test A) 3.5.2 Tensile Strength, min 250 k
5、Pa (ISO 1798/ASTM D 3574, Test E, 50 mm bench marks, 5 specimen minimum) 3.5.2.1 Elongation at Break, min 120% (Test acc. to 3.5.2) 3.5.3 Compression Set, max 35% (ISO 1856, Method A/ASTM D 3574, Test D, ct calculation, 22 h at 23 C, 50% deflection, 3 specimens, minimum) 3.5.4 Compression Deflection
6、 Stress 20 - 35 kPa (ASTM D 1056) 3.5.5 Water Absorption, max 15% (ASTM D 1056, subject specimen to a vacuum of 84 kPa) ENGINEERING MATERIAL SPECIFICATION WSK-M4D805-A Copyright 2013, Ford Global Technologies, LLC Page 2 of 2 3.5.6 Dimensional Stability, max WMD +/- 4% AMD +/- 4% Test Method: A spec
7、imen approx. 300 x 300 mm in size shall be placed in a mechanical convection oven maintained at 100 +/- 2 C for 3 h. Dimensional changes shall be measured after cooling down to room temperature. 3.5.7 Cold Flexibility at -40 C No cracks (FLTM BN 102-01, diameter of mandrel shall be 2 times of specimen thickness) 3.5.8 Fogging (FLTM BO 116-03) Fog Number, min 70 3.5.9 Odor, max Rating 2 (FLTM BO 131-01/SAE J1351) 3.5.10 Flammability (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 6.0 +/- 0.1 mm with smooth surfaces.
