1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2003 01 14 Revised Para 3.0 inserted; paras 3.1, 3.2, 3.3, 5, 6, 7 deleted 1998 06 03 Revised Rev. para 3.12, 3.14, 3.15, 4.1, Add.3.21 L. Graham 1997 05 12 Activated L. Graham Printed copies are uncontrolle
2、d Page 1 of 6 Copyright 2002, Ford Global Technologies, Inc. FABRIC, VINYL COATED (PVC), CONVERTIBLE WSS-M2F192-A TOP, SINGLE TEXTURE 1. SCOPE The material defined by this specification is an outside material consisting of a dyed water repellent backing fabric, coated with vinyl face material. 2. AP
3、PLICATION This specification was released originally for material used as a convertible top material. 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).
4、 3.4 APPEARANCE (FLTM BI 109-01) The color, pattern, and finish shall match the approved Design Center master sample, or shall be as specified on the engineering drawing. 3.5 THICKNESS, max 1.0 mm (ASTM D 751) 3.6 WEIGHT, range 711 - 813 g/m2(ASTM D 751, Sample Method) 3.7 BACKING FABRIC 65 % polyes
5、ter/ 35 % cotton blend sheeting 3.7.1 Fabric Count, min (ASTM D 3775) Warp 25 ends/cm Fill 14 picks/cm ENGINEERING MATERIAL SPECIFICATION WSS-M2F192-A Page 2 of 6 Copyright 2002, Ford Global Technologies, Inc. 3.7.2 Yarn Size and Composition (ASTM D 1244) Warp 21 ends/cm Fill 14 picks/cm 3.8 BREAKIN
6、G STRENGTH, min (ASTM D 751, Grab Method) Warp 660 N Fill 570 N 3.9 ADHESION OF VINYL COATING TO BACKING 40 N/50 mm width FABRIC, min (FLTM BN 151-05, Method A/ISO 2711) The coating of the test specimen shall be separated from the backing fabric by hand and without the use of solvents. The testing m
7、achine shall be operated at 305 mm/minute. 3.10 CROCKING, min (Fabric Side)* (FLTM BN 107-01) Dry 4 Wet 3*The following exception is allowed for blue and black: Dry 3 min Wet 13.11 RESISTANCE TO ABRASION (FLTM BN 108-02, CS10 wheels, 1000 g load, 1000 cycles) The materials wear pattern and color sha
8、ll be compatible in appearance with the adjacent unabraded areas. The resistance abrasion of production material shall be equal to or better than the sample approved by the Materials Engineering Activity. 3.12 SHRINKAGE, AFTER DRYING, %, max (SAE J883) Warp 2.0 Fill 0.75 ENGINEERING MATERIAL SPECIFI
9、CATION WSS-M2F192-A Page 3 of 6 Copyright 2002, Ford Global Technologies, Inc. 3.13 STIFFNESS, max (ASTM D 747, direct reading at 60 angle with 0.01 N.m load) Warp 30 Fill 20 Test specimens shall be 50 x 25 mm with 25 mm of the 50 mm dimension clamped in a jaw, 13 mm span from clamp to bending plate
10、, fabric side up. 3.14 RESISTANCE TO W FLEX (FLTM BN 102-02, 10,000 cycles) The vinyl coating shall show no evidence of crazing (milkiness), lifting (peeling), or cracking when examined after the above tests. Original sample, standard conditions 1140 kJ/m2in the Xenon Arc Weatherometer (SAE J1960) 3
11、.15 WEATHERING RESISTANCE 3.15.1 XENON ARC WEATHEROMETER Rating 4 (SAE J1960, 1140 kJ/m2exposure min) 3.15.2 12 months Florida and Arizona Rating 4 (FLTM BI 160-01, 5 south direct weathering inland) 3.15.3 24 months Florida and Arizona Rating 3 - 4 (FLTM BI 160-01, 5 south, direct weathering inland)
12、 The surface fabric shall not stain, exhibit color change, or change in hue in accordance with the specified AATCC rating. Any spotty or non-uniform staining or discoloration shall be cause for rejection. 3.16 STRETCH AND SET, %, range (SAE J855) Strech Set Warp 0 - 5 0 - 3 Fill 3 - 12 0 - 3 3.17 RE
13、SISTANCE TO WICKING None (SAE J913, 4 h immersion, using 50 % soap solution) The fabric shall be treated to prevent wicking. ENGINEERING MATERIAL SPECIFICATION WSS-M2F192-A Page 4 of 6 Copyright 2002, Ford Global Technologies, Inc. 3.18 RESISTANCE TO SCUFFING 500 cycles (FLTM BN 108-04, “A“ Head, 0.
14、9 kg load) The vinyl surface shall show no evidence of breakthrough after the above test. The resistance to scuffing of production material shall be equal to that exhibited by the sample approved by the Materials Engineering Activity. 3.19 COLD FLEXIBILITY (FLTM BN 102-01) Shall remain flexible and
15、not crack when bent 180 around the 6.4 mm mandrel at - 30 C. 3.20 SOILING AND CLEANABILITY (FLTM BN 112-08, ISO 105-A02/AATCC Evaluation Procedure 1) Cleanability Rating 3 3.21 TRAPEZOID TEARING STRENGTH, min (ASTM D 5733) Warp 70 N Fill 70 N 3.22 RESISTANCE TO HEAT The material shall show no flatte
16、ning of the embossing or increase in surface luster or change in color greater than the sample approved by the Materials Engineering Activity when tested as described below. Test Method: Place a 100 x 100 mm test specimen, coating side up, in a mechanical convection oven maintained at 120 +/- 2 C fo
17、r a period of 30 minutes. Remove and allow the specimen to cool to 23 +/- 2 C. Visually examine for evidence of coating flow and change in luster or color. 3.23 RESISTANCE TO MILDEW AND STAINING (ASTM G 21 and ASTM E 1428) No evidence of fungal growth or staining. 3.24 FLAMMABILITY (ISO 3795/SAE J36
18、9) Burn Rate, max 100 mm/minute ENGINEERING MATERIAL SPECIFICATION WSS-M2F192-A Page 5 of 6 Copyright 2002, Ford Global Technologies, Inc. 4. REQUIREMENTS-BONDING GRADE In addition to the requirements listed above, bonding grade materials must meet the following added requirements. The criterion for
19、 material acceptability for bonding grade materials shall be the assemblys job performance. This means that the surface vinyl formulation must form a satisfactory bond when bonded to itself and equally to the Vinyl Backlite Material. Also, a satisfactory bond must be obtained between the cloth backi
20、ng in the presence of a suitable adhesive agent. 4.1 BONDED ASSEMBLY REQUIREMENTS 4.1.1 Resistance to Heating The vinyl coating on this material shall not blister, boil, burn, delaminate or char during the heat bonding process in either the warp or fill direction. Decorative embossing shall not get
21、shiny or be removed during this processing. 4.1.2 Shear Strength of Bonded Seam The strength of the bonded seam shall be greater than the material itself before and after aging in the Weatherometer for 300 kJ/m2according to SAE J1960. Test Method: Cut three 102 x 152 mm specimens from a production b
22、onded assembly so that the bonded area is midway along the 152 mm length and parallel to the 102 mm dimension. Insert the 102 mm ends in 25 mm in the jaws of the mechanical tester and pull at the rate of 305 mm/minute until either the bonded seam separates or the material fails. Prepare and test wea
23、therometer samples as described above after conditioning specimens for 300 kJ/m2according to SAE J1960. 4.1.3 Peel Strength of Bonded Seam, min Original - Vinyl to Vinyl 17 N Aged - Vinyl to Vinyl 15 N Original - Fabric to Fabric 6 N Aged - Fabric to Fabric 45 N Test Method: Cut 76 x 178 mm specimen
24、s from a production bonded assembly so that the bonded area is centered and parallel to the 178 mm dimension. Condition specimens for aged tests for 300 kJ/m2according to SAE J1960. Prior to pulling, remove the sewing thread from all specimens. Partially separate the vinyl to vinyl bonds and the fab
25、ric to fabric/bonds at one end of each specimen by hand. Insert the loosened ends of each specimen 25 mm in the jaws of the mechanical tester. Pull specimens at a 180 peel angle at the rate of 305 mm/minute. ENGINEERING MATERIAL SPECIFICATION WSS-M2F192-A Page 6 of 6 Copyright 2002, Ford Global Tech
26、nologies, Inc. 4.1.4 Water Permeability (Hydrostatic Test-500 mL of water pressure for 24 h) No water leakage of the bonded seam before and after exposure in the weatherometer for 300 kJ/m2, and after exposure (on a separate specimen) in a mechanical convection oven at 121 +/- 2 C for 1 h. 4.1.5 Pee
27、l Adhesion of Bonded Decorative Areas Dielectrically bonded decorative areas shall exhibit an original peel adhesion of 28 N min and an aged peel adhesion of 22 N min. Test Method: Separate various portions of the applied design by hand without the use of a solvent. Position the separated design sec
28、tion in the upper jaw, and the convertible top section in the lower jaw of a mechanical tester. Pull at a 180 angle at the rate of 305 mm/ minute. Aged peel adhesion values shall determined on pre-conditioned samples subjected to a 300 kJ/m2weatherometer exposure period (SAE J1960) in accordance with the test procedure described above.
