1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 3 2017 12 04 Editorial See Summary of Revisions S. Gatzek, NA 2016 12 06 Editorial See Summary of Revisions S. Gatzek, NA 2006 09 13 Activated A1 and A2. A3 released XXX 2015 L. Schmalz, NA Controlled document at www.MATS Copyright 2017,
2、 Ford Global Technologies, LLC Page 1 of 5 FLEXIBLE POLYURETHANE COATED COVERSTOCK, WSS-M2F206-A1 KNITTED FABRIC BACKED FLEXIBLE POLYURETHANE COATED COVERSTOCK, WSS-M2F206-A2 NONWOVEN FABRIC BACKED FLEXIBLE POLYURETHANE COATED COVERSTOCK, WSS-M2F206-A3 KNITTED SPACER FABRIC BACKED 1. SCOPE The mater
3、ial defined by this specifications is a flexible polyurethane coated coverstock with a knitted, nonwoven, or knitted spacer fabric backing used in the production of wrapped IP, interior door panel or console lid. 2. APPLICATION This specification was released originally as a flexible skin that can b
4、e used to wrap and thread top stitch a hard plastic substrate for an instrument panel. This material must also meet the requirements in WSS-M15P45-B/latest and any applicable SDS, including, but not limited to the IP, IT and PAB SDS. WSS-M2F206-A1: Polyurethane coated coverstock with a knitted fabri
5、c backing originally released for the S197 topper panel. WSS-M2F206-A2: Polyurethane coated coverstock with a nonwoven fabric backing originally released for the D385 instrument panel binnacle. WSS-M2F206-A3: Polyurethane coated coverstock with a knitted spacer fabric originally released for the D38
6、5 instrument panel. 2.1 Limitations Only the A3 construction can be used for seamless PAB (passenger air bag) instrument panel applications. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (ASL
7、) can be used when this specification is listed on the drawing, CAD file, or other documents. The list of approved sources is located within Ford at or available externally through a Ford Materials Engineer. 3.1.1 Vehicle Interior Environmental Quality Materials/Component Performance Requirements C
8、omponents used in interior applications must meet the requirements outlined in WSS-M99P2222-D1/latest. 3.2 CONDITIONING AND TEST CONDITIONS All test values are based on material conditioned for not less than 24 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humid
9、ity. Testing of the material should occur in the conditioning environment or soon after removal. 3.3 APPEARANCE The color, grain, gloss and hand shall match the approved Corporate Design master sample. ENGINEERING MATERIAL SPECIFICATION WSS-M2F206-A1/A2/A3 Controlled document at www.MATS Copyright 2
10、017, Ford Global Technologies, LLC Page 2 of 5 3.4 COMPOSITON A1 A2 A3 Face Material: Polyurethane Polyurethane Polyurethane Backing Material: Polyester Knitted Fabric Polyester Nonwoven Fabric Polyester Knitted Spacer Fabric 3.5 TOTAL THICKNESS (ISO 2286, Part 3) A1 A2 A3* 0.95 1.35 mm 1.30 1.70 mm
11、 1.45 1.85 mm * Thickness may differ from the listed values based on program targets and part design; tolerances for each layer and total thickness as specified on program specific Engineering Document (part drawing, SCCAF, etc.). 3.6 WEIGHT (ISO 2286, Part 2) A1 A2 A3* Polyurethane 420 g/m2 (target
12、) 420 g/m2 (target) 350 g/m2 (target) Backing Fabric 145 g/m2 (target) 255 g/m2 (target) 170 g/m2 (target) Total Weight 450 650 g/m2 670 870 g/m2 420 620 g/m2 * Weight may differ from the listed values based on program targets and part design; tolerances for each layer and total weight must be speci
13、fied on program specific Engineering Document (part drawing, SCCAF, etc.). 3.7 BREAKING STRENGTH (ASTM D751, grab method) A1 A2 A3 WMD 300 N min 550 N min 300 N min AMD 250 N min 650 N min 250 N min 3.8 RESISTANCE TO TEAR (Trapezoid) (ASTM D5733, Integration method) A1 A2 A3 WMD 60 N min 85 N min 60
14、 N min AMD 50 N min 55 N min 110 N min 3.9 RESISTANCE TO HEAT AGING (ISO 188, except 150 +/- 50 air changes/h, 500 h at 120 C +/- 2 C Unaged property values shall be determined at the time of the aged properties determination) 3.9.1 Color Stability Rating 4 min (AATCC Procedure 1/ISO 105-A02) 3.9.2
15、Cold Flexibility No Cracks (SAE J323 Method A, -20 C, 20 mm mandrel, Specimen size, 50 x 150 mm) 3.9.3 Elongation at Break Change 20 % max ENGINEERING MATERIAL SPECIFICATION WSS-M2F206-A1/A2/A3 Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 3 of 5 From Original Va
16、lue, (ISO R 527, type 2, 100 mm/minute test speed) 3.10 HUMIDITY RESISTANCE (FLTM BQ 104-02, 7 days) 3.10.1 Color Stability Rating 4 min (AATCC Procedure 1/ISO 105-A02) 3.10.2 Cold Flexibility No Cracks (SAE J323 Method A -20 C, 20 mm mandrel, Specimen size, 50 x 150 mm) 3.10.3 Elongation at Break C
17、hange 20 % max From Original Value, (ISO R 527, type 2, 100 mm/minute test speed) 3.11 SEAM STRENGTH (FLTM BN 119-01, except use lockstitch with 6 stitches/25 mm, 5 sample average in each direction). A1 A2 A3 WMD 200 N min 445 N min 250 N min AMD 200 N min 445 N min 350 N min 3.12 ODOR (FLTM BO 131-
18、01, Variant C) Condition 1 = 23 +/- 2 C Rating 3 max Condition 2 = 40 +/- 2 C Rating 3 max Condition 3 = 65 +/- 2 C Rating 3 max 3.13 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) Fog Number 70 min Formation of clear film, droplets or crystals is cause fo
19、r rejection. 3.14 STIFFNESS (ASTM D747, direct reading at 60 angle with a 0.01 N-m moment weight) WMD 18 N/mm2 min AMD 18 N/mm2 min 3.15 STRETCH AND SET (SAE J855, 5 min/120N) A1 A2 A3 Stretch WMD 50 % max 15 % max 50 % max AMD 140 % max 35 % max 50 % max Set WMD 5 % max 0.8 % max 5 % max AMD 10 % m
20、ax 2.0 % max 5 % max 3.16 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate 100 mm/minute max ENGINEERING MATERIAL SPECIFICATION WSS-M2F206-A1/A2/A3 Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 4 of 5 3.17 RESISTANCE TO INTERIOR WEATHERING 3.17.1 Resistance to Fade (FL
21、TM BO 116-01, ISO 105-A02/ AATCC Evaluation Procedure 1) In Vehicle Sunlight Exposure Level FLTM BO 116-01 Test Exposure AATCC Rating After Exposure, min. Severe Exposure: Instrument panel topper, defroster grill, parcel shelf assembly/package tray, interior rear view mirror housing. 3609.6 kJ/m2 Ra
22、ting 4 Heavy Exposure: Instrument panel lower top cover, 2 tone IP, IP bezel, airbag cover 2406.4 kJ/m2 Rating 4 Above the Belt-line: Instrument panel lower, door panel rollover, pillars, garnish moldings 977.6 kJ/m2 Rating 4 Below the Belt-line: Floor console, valence panel, hush panel 601.6 kJ/m2
23、Rating 4 Mild Exposure: Lower trim panels 225.6 kJ/m2 Rating 4 Evaluation The test specimen shall not show any change of color lower than indicated rating. Any spotty or non-uniform staining, discoloration, color tone change, blistering, delamination or any other deleterious effect shall be cause fo
24、r rejection. In addition, there shall be no cracking, crazing or other deterioration. The material must remain flexible and exhibit no cracking when bent around a 20 +/- 2 mm mandrel after the specified exposure. 4. GENERAL INFORMATION The information given below is provided for clarification and as
25、sistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Product Development, and
26、 Materials Engineering. The supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of the Material Specification. Tested material samples must be availa
27、ble for review upon request and kept for a minimum of one year. Upon request, the supplier will review the associated quality control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.2 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equi
28、valent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved, whether or not such changes affect the materials ability to meet the specification requirements, the supplier shall notify the affected Supplier
29、Technical Assistance (STA), Purchasing, and Materials Engineering activities of ENGINEERING MATERIAL SPECIFICATION WSS-M2F206-A1/A2/A3 Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 5 of 5 the proposed changes (with reasons) by submission of a completed Suppliers
30、Request for Engineering Approval, SREA. For parts and components using Ford Engineering Material Specifications, all samples tested to the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. 4.3 REST
31、RICTED SUBSTANCE MANAGEMENT STANDARD Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in the Restricted Substance Management Standard WSS-M99P9999-A1 which is updated yearly. It is the suppliers re
32、sponsibility to comply with this standard on a continuing basis through IMDS and or GMAP reporting. 4.1 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES TPU/PET 5. SUMMARY OF REVISIONS 2017 12 04 Editorial Corrected thickness tolerance typos 2016 12 06 Editorial Clarified limitations - 3.5 and 3.6 Cla
33、rified where program specific weight and thickness are to be located 2015 08 17 - Released A3 suffix and properties - 3.1 Moved requirements from WSS-M99P1111-A into spec and added VIEQ paragraph - 3.2 Clarified conditioning and test condition requirements - 3.3 Added Appearance requirement - 3.9.3 and 3.10.3 Removed ASTM 638M-II from Elongation at Break - 3. 12 Removed SAE J1351 from Odor, listed the required conditions and changed rating to 3 max - 3.17 Updated Resistance to Interior Weathering requirements - Updated general format to match current templates - Editorial changes
