1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 12 19 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 2001 11 27 Activated D. Whyte, J. Williams, M. Dumitrescu Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 THERMOPLASTIC ELASTOMER,
2、FLOOR COVERING, WSS-M99D63-A3 GRAINED, SHAPED 1. SCOPE The Material defined by this specification is an interior floor covering manufactured from modified thermoplastic elastomer of good quality and uniform construction, suitable for flat and shaped parts. The surface layer may be composed of an alt
3、ernative thermoplastic material. 2. APPLICATION This specification was released originally for material used as a floor covering in trucks, vans and/or as specified on the engineering drawing. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials.
4、In addition to the material requirements listed herein, the finished assembly must meet the requirements of the Performance Specification, WSS-M99P32-A. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Pro
5、duction Materials (WSS-M99P1111-A). 3.4 APPEARANCE (FLTM BI 109-01) The color, pattern, finish and gloss shall match the approved Design Center master sample, or shall be specified on the engineering drawing. 3.4.1 Dimensional Stability, max (SAE J883) 1 hr. 3.5% 100 hr. 3.5% Test Method: A specimen
6、 approximately 300 x 300 mm, shall be placed in a mechanical convection oven maintained at 80 +/- 2 C for 1 hr. and again for 100 hrs. Dimensional values shall be calculated after the material has cooled to room temperature. ENGINEERING MATERIAL SPECIFICATION WSS-M99D63-A3 Printed copies are uncont
7、rolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 3.5 CONSTRUCTION 3.5.1 Density As specified on the (ASTM D 792 method A-1) Engineering Drawing. Calculate weight vs. Area of finished mat without attachments. 3.5.2 Thickness As specified on the (ASTM D 3767) Engineering Drawing. 3.6 P
8、ROPERTIES PRIOR TO MOLDING 3.6.1 Hardness, Durometer A 84 +/- 6 (ISO 868/ASTM D 2240, except test ungrained material) 3.6.2 Tensile Strength, MPa, min (ISO 37, Type 1, ASTM D 412 Method A, Die A) Crosshead speed 250 mm/min WMD and AMD 3.0 3.6.3 Elongation, %, min. (ISO 37, Type 1, ASTM D 412 Method
9、A, Die A) Crosshead speed 250 mm/min WMD and AMD 220% 3.6.4 Tear Strength, N, min (ISO 34, Method B, Procedure A/ ASTM D 624, Die C, except 50-mm/minute-test speed) WMD and AMD 25 N/mm 3.6.5 Bend Test No cracking (FLTM BN 102-01, except sample size 25 x 150 mm) Test Method: Bend ungrained side of sa
10、mple 180 around a 25 mm diameter mandrel at room temperature, WMD and AMD. 3.6.6 Cold Flexibility: Shall remain flexible and not crack (FLTM BN 102-01, except Sample 25 x 150mm) Test Method: Bend ungrained side of sample 180 around a 25mm diameter mandrel at -30 +/- 1.0 C, WMD and AMD. 3.7 PROPERTIE
11、S AFTER MOLDING Materials from a relatively flat area, at, or adjacent to the deepest draw areas of the molded mat shall meet the minimum original requirements of the flat mat. The following tests should be performed on material as received and after molding. ENGINEERING MATERIAL SPECIFICATION WSS-M
12、99D63-A3 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.7.1 Abrasion Resistance, max (SAE J1530, 1000g load, H-18 Wheels) The abraded area shall not wear through to the composite substrate and/or remove the grained surface. 700 cycles The abraded area sha
13、ll be compatible with the adjacent non-abraded area and shall not show any greater sign of abrasion than the Master Sample originally approved by Materials engineering. In addition the floor cover shall exhibit no visual evidence of wear through of the composite thickness after nr of cycles specifie
14、d as follow: Throw-in Throw-in Mat optional Mat standard Driver Footwell Area 2000 cycles 4000 cycles *7000 cycles* Remainder of Passenger 2000 cycles * Required for plain surface, grained surface or longitudinal ribs (parallel to the centerline of the vehicle) * Required for transverse ribs Product
15、ion material shall be equal to or better than the material approved for production by Materials Engineering. 3.7.2 Crockmeter |Scuff, min: 500 Cycles (FLTM BN 108-10) The sample shall show no sign of splitting, tearing, peeling or excessive wear and the grained surface shall be relatively undamaged.
16、 The scuffing properties shall be equal to or greater than the Master Sample approved by Materials Engineering. 3.7.3 Aged Properties (7 days at 80 +/- 2.0 C, ISO 105-A02/AATCC Evaluation procedure 1) No Cracking - Rating 4 Must meet flat mat requirements specified under section 3.6 except for tensi
17、le strength, which should be 2.7 MPa. minimum 3.7.4 Fade Resistance, min. (SAE J1885, AATCC Evaluation Procedure 1/ISO 105-A02) 112.8 kJ/m2 Rating 4 The material shall not stain, exhibit color tone change or change in hue in excess of the specified AATCC rating. In addition, there shall be no cracki
18、ng, crazing, or other deterioration. The material must remain flexible and exhibit no cracking when bent around a 6 mm diameter mandrel after the specified exposure, ungrained side to mandrel. ENGINEERING MATERIAL SPECIFICATION WSS-M99D63-A3 Printed copies are uncontrolled Copyright 2006, Ford Globa
19、l Technologies, LLC Page 4 of 4 3.7.5 Kinetic Friction, kg, +/- 10%, avg. of 3 (ASTM D 1894, except as modified) As specified on the Engineering Drawing. 3.7.6 Water Staining The material shall not permanently change in color or stain when distilled water is allowed to dry on its surface. Test Metho
20、d: Cut a 150 x 150 mm sample from the mat. Make a 25mm cut in the diagonal direction from each corner. Fold the edges and clip the corners together to form a box. Add 25 ml of distilled water. Allow to air dry at 23 +/- 2.0 C. Then wash under tap water, wipe dry and observe for discoloration or stain. 5. RECYCLING CODE. E/VAC + TEO - M60
