1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 00 2018 06 13 Released S. Gatzek, NA Controlled document at www.MATS Copyright 2018, Ford Global Technologies, LLC Page 1 of 7 FLEXIBLE COVERSTOCK, SLUSH MOLDABLE THERMOPLASTIC WSS-M2D519-A1 ELASTOMER (TPE), SEAMLESS INSTRUMENT PANEL 1. S
2、COPE The material defined by this specification is a slush molded TPE skin that is UV stabilized, heat stabilized, and has excellent low temperature ductility used for seamless instrument panels or soft door systems. 2. APPLICATION This specification was released originally for use as a flexible mol
3、ded skin for the seamless instrument panel over foam and plastic substrates. 2.1 LIMITATIONS TPE is inherently incompatible with PVC. Interfaces where TPE and PVC come in contact need to be avoided. This material may require the use of an adhesion promotor or other special treatment to the skin surf
4、ace for skin to foam adhesion. This material must be 100% bonded to a production assembly. No painting or two-toning allowed. No regrind is allowed. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source L
5、ist (ASL) 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. 3.2 CONDITIONING AND TEST CONDITIONS All test values are based on material conditio
6、ned for not less than 24 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humidity. Testing of the material should occur in the conditioning environment or soon after removal. 3.3 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS IR spectra and thermograms from in
7、itial material approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. The material supplier shall ensure that all future material supplied to the specification shall produce IR spectra and thermograms that correspond to the reference standar
8、d when tested under the same conditions. 3.4 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS 3.4.1 This specification is based on virgin material and does not allow the addition of recycled content (PIR/PCR). ENGINEERING MATERIAL SPECIFICATION WSS-M2D519-A1 Copyright 2018, Ford Global Technologies, L
9、LC Page 2 of 7 3.4.2 Performance Criteria: Parts using this material must also meet the requirements in WSS-M15P45-C/Latest. Parts must fulfill applicable SDS/CDS requirements. If the plastic substrate is an olefin based material, the substrate must be pretreated with either adhesion promoter, flame
10、, or plasma treatment and no slip agent should be present unless validated with the slip agent. 3.4.3 Ford Materials Engineering may request a Control Plan and Certificate of Analysis (C of A) containing lot testing requirements which must include, but are not limited to: Density Hardness 3.5 SAMPLE
11、 PREPARATION All tests shall be carried out on production materials manufactured from the production process unless correlation to a non-production process has been reviewed and approved by Ford Materials Engineering. Unless otherwise specified, all tests shall be carried out on specimens die cut fr
12、om unformed sheets per the Specimen dimensions below. Additional die cut specimens are required for some of the tests. No additional annealing is allowed. See Tables 1 and 2 for the number of samples required. Specimens shall be as follows: Specimen A 150 minimum x 10 x 4.0 +/- 0.2 mm (ISO 37, Speci
13、men Type 1) Specimen B 355 x 100 x 1.0 +/- 0.1 mm Specimen C 145 x 60 x 3.2 +/- 0.2 mm Specimen D 80 x 10 x 4.0 +/- 0.2 mm (may be cut from the center of Specimen A) Specimen E 100 mm diameter x 3.2 mm Specimen F 80 mm diameter x 3.2 mm Specimen G 90 mm x 200 mm Specimen H 50 +/- 1 mm diameter x 3.2
14、 +/- 0.2 mm Specimen I 100 mm x 150 mm, min For appearance testing: Use an ungrained, non-polished, tool to prepare specimens for C through N gloss surfaces. 3.6 APPEARANCE 3.6.1 Color and Gloss The color, patterns and gloss shall match the approved Corporate Desing master sample. 3.6.2 Resistance t
15、o Interior Weathering Rating 4 min (FLTM BO 116-01, 3609.6kJ/m2 exposure, Specimen C, AATCC Evaluation Procedure 1) After exposure the material shall show no fading or color change in excess of the specified AATCC rating. In addition, there shall be no cracking, crazing or other deterioration. 3.6.2
16、.1 Tackiness of Interior Materials after Weathering* (FLTM BO 061-01) *When setting machine for automatic shutoff, every 526.4 kJ/m2 is recommended. ENGINEERING MATERIAL SPECIFICATION WSS-M2D519-A1 Copyright 2018, Ford Global Technologies, LLC Page 3 of 7 3.6.3 Resistance to Abrasion (SAE J948, CS-1
17、0 wheels, 500g, 250 cycles) The surface shall show no evidence of wear through. A slight change in gloss is acceptable and will be evaluated by Materials Engineering. 3.6.4 Resistance to Scuffing (SAE J365, Scuff Head A, 250 cycles) The surface shall show no evidence of wear through. A slight change
18、 in gloss is acceptable and will be evaluated by Materials Engineering. 3.6.5 Resistance to Migration Staining and Blocking Rating 5 min (FLTM BN 103-01, AATCC Evaluation Procedure 1) No evidence of exudation, adhesion (tackiness), separation, color transfer, staining, or flattening of the embossing
19、 when material is placed in the following positions: Top surface to top surface Top surface to back surface 3.6.6 Soiling and Cleanability Rating 3, min (FLTM BN 112-08, AATCC Evaluation Procedure 1) Test agents: Soil, coffee, and grease 3.6.7 Resistance to Window Cleaner Rating 4, min Window cleani
20、ng solution must contain at least 1% butyl cellusolve. Test procedure: Prepare test samples by placing 2.0 ml of cleaner on the sample. A non-reactive washer may be used to control the location of the cleaner on the sample. Expose the sample at room temperature for 1 h, rinse with tap water, and dry
21、 carefully with a clean paper towel; do not rub spots. Evaluate per ISO 105-A02/AATCC Evaluation Procedure 1. 3.6.8 Pigment Color Change Rating 4, min (40 hrs at 100 +/-2 C, AATCC Evaluation Procedure 1) 3.7 MATERIAL PROPERTIES 3.7.1 Density 0.850.95 g/cm3 (ISO 1183, Method A) 3.7.2 Hardness, Durome
22、ter A 70 +/- 10 (ISO 868, 15 s dwell) 3.7.3 Tensile Strength at Break 3.0 MPa, min (ISO 37, Type 1, 500 mm/minute test speed) 3.7.3.1 Elongation at Break 300% min (Test Method according to para 3.7.3) 3.7.4 Cold Flexibility at -40 C No cracks (180 bend over a 20 +/- 1 mm diameter mandrel, Specimen C
23、) ENGINEERING MATERIAL SPECIFICATION WSS-M2D519-A1 Copyright 2018, Ford Global Technologies, LLC Page 4 of 7 3.7.5 Tear Strength 30 kN/m, min (ISO 34, Figure 2, Angle Test Piece, Method B, Procedure A, 50 mm/minute test speed) 3.7.6 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1
24、000 h at 120 C, unaged property values shall be determined at the time of the aged properties determination) 3.7.6.1 Tensile Strength at Break, Change -25% max 3.7.6.2 Elongation at Break, Change -50% max (100% absolute elongation min) Sample preparation for Para 3.7.7 (Odor) and 3.7.8 (Fogging): Fo
25、r shipping, all materials or parts shall be sampled immediately after manufacture, then bagged in a zipper- or slide-sealed polyethylene (PE) bag, PE-coated aluminum bag or wrapped in aluminum foil prior to bagging. Test specimens shall be cut, then stored in a clean, open environment for 14-28 days
26、. After 14-28 days of air exposure, the specimens shall be tested immediately or re-bagged until testing can be performed. Bagged materials or parts must be labelled on the outside of the bag with the following information, and included in the test report: supplier, contact information, product code
27、/trade name or part number, manufacturing location, date of manufacture, shipping date, start and end dates of conditioning period and test date. 3.7.7 Interior Odor Test (FLTM BO 131-03, Variant C) Condition 1 Rating 3 max Condition 2 Rating 3 max Condition 3 Rating 3 max 3.7.8 Fogging (Photometric
28、) (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) Fog Number 70 min Formation of oily film, droplets or crystals is cause for rejection. 3.7.9 Flammability (ISO 3795, Specimen B, smooth surface) Burn Rate 100 mm/minute max 3.7.10 Resistance to Dynamic Exudation Rat
29、ing 4-5 min (AATCC Evaluation Procedure 1, 168 h exposure) Place full construction samples in a chamber that can maintain the conditions of 70% +/- 5% RH & 70 C +/- 2 C. Whitening, blooming, spewing, exudation, etc. on the surface of the samples shall be cause for rejection. To be used for initial t
30、echnology approval only or change in Tier 1 supplier and/or process. 3.8 MATERIAL PROPOERTIES REPORT ONLY 3.8.1 Impact Strength, Multiaxial Impact Testing 100% Ductile to Determine the Ductile/Brittle Transition Report J Energy (ASTM D3763) 6.7 m/s, 1.0 mm and 1.2 mm thickness ENGINEERING MATERIAL S
31、PECIFICATION WSS-M2D519-A1 Copyright 2018, Ford Global Technologies, LLC Page 5 of 7 A ductile result is defined as a crack that does not radiate more than 10 mm from the center of the impact point. Test specimens must be conditioned for a minimum of 6 hours at test temperature prior to impact testi
32、ng. Low temperature testing shal be conducted within the same environmental chamber as the clamp mechanism of the impact device. Specimens can be transported from the conditioning environment to the testing environment, provided the transfer is within 5 seconds. 3.8.2 Supplemental Information The fo
33、llowing curves may be requested with the data packages: FTIR TGA DSC first and second heat Engineering Stress/Strain at 23 C, -40 C, and 80 C 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact fo
34、r questions concerning Engineering Material Specifications. 4.1 GENERIC IDENTIFICATION AND MARKING OF PLASTIC PRODUCTS TPE (ISO 1043/11469/18064) 4.2 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Product D
35、evelopment, and 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
36、 must be available 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. 4.3 SUPPLIERS ONGOING RESPONSIBILITY All materia
37、ls must be equivalent 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 aff
38、ected Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the proposed changes (with reasons) by submission of a completed Suppliers Request for Engineering Approval, SREA. For parts and components using Ford Engineering Material Specifications, all samples teste
39、d to the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. ENGINEERING MATERIAL SPECIFICATION WSS-M2D519-A1 Copyright 2018, Ford Global Technologies, LLC Page 6 of 7 4.4 RESTRICTED SUBSTANCE MANAGE
40、MENT 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 responsibility to comply
41、with this standard on a continuing basis through IMDS and or GMAP reporting. 5. SUMMARY OF REVISIONS Table 1: Minimum Sample Size Initial Approval and New Manufacturing Locations in a Different Region Para. Test Minimum Lots Specimens per Lot Total Test Specimens 3.6.2 Resistance to Interior Weather
42、ing 1 1 1 3.6.2.1 Tackiness after Weathering 1 1 1 3.6.3 Resistance to Abrasion 1 1 1 3.6.4 Resistance to Scuffing 1 1 1 3.6.5 Resistance to Migration Staining (per condition) 1 3 3 3.6.6 Soiling and Cleanability (per condition) 1 3 3 3.6.7 Resistance to Window Cleaner Spotting 1 1 1 3.6.8 Pigment C
43、olor Change 1 1 1 3.7.1 Density 3 1 3 3.7.2 Hardness, Durometer A 1 5 measurements 1 3.7.3 Tensile Strength at Break 3 5 15 3.7.3.1 Elongation at Break 3 5 15 3.7.4 Cold Flexibility 1 3 3 3.7.5 Tear Strength 1 5 5 3.7.6 Heat Aging Performance 3.7.6.1 Tensile Strength at Break, Change 1 5 5 3.7.6.2 E
44、longation at Break, Change 1 5 5 3.7.7 Odor 1 9 9 3.7.8 Fogging Photometric 1 3 3 3.7.9 Flammability 1 5 5 3.7.10 Dynamic Exudation 1 1 1 3.8.1 Multiaxial Impact 1 10 10 3.8.2 Curves IR TGA DSC (first and second heat) Stress/Strain Curves 1 1 1 per test ENGINEERING MATERIAL SPECIFICATION WSS-M2D519-
45、A1 Copyright 2018, Ford Global Technologies, LLC Page 7 of 7 Table 2: Minimum Color Property Testing Contact Materials Engineering for Color Test Work Plan Para. Test Total Test Specimens New Color/Grain 3.6.2 Resistance to Interior Weathering 1 Every color 3.6.3 Resistance to Abrasion 1 Every color 3.6.4 Resistance to Scuffing 1 Every color 3.6.5 Resistance to Migration Staining 1 per condition Every color 3.6.6 Soiling and Cleanability 1 per condition Light colors 3.6.7 Resistance to Window Cleaner 1 Every color 3.6.8 Pigment Change 1 Every color 3.7.9 Flammability 5 Every color
