1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revision Rev. 03 2018 06 15 Revised Added weathering for new constructions L. Rabideau, NA 2018 04 17 Revised See Summary of Revisions L. Rabideau, NA 2017 07 27 Released L. Rabideau, NA Controlled document at www.MATS Copyright 2018, Ford Global Techn
2、ologies, LLC Page 1 of 10 PERFORMANCE, ROOF SYSTEMS FABRIC, INTERIOR WSS-M8P27-B1 1. SCOPE The material defined by this specification is any flexible (soft) cover fabric, or laminate, to be bonded to an interior roof system substrate base or interior part above the belt line. This includes applicati
3、ons such as headliner, pillar, sun visor, roller shade, and moon/sun roof. 2. APPLICATION This specification was released originally for all materials (not including polymeric films) used for soft interior cover stock such as headliner, pillar, sun visor, roller shade and moon/sun roof, which includ
4、es knits, woven or non-woven construction. This includes any combination of composites with foam, scrim or fabric that is applicable to the part assembly. Testing must be conducted according to Table 1 for each approval phase with the appropriate backing for the application. 3. REQUIREMENTS 3.1 APPR
5、OVED SOURCES This specification is performance based and does not have approved sources 3.2 PERFORMANCE SPECIFICATION For lamination requirements refer to Performance Lamination for Seating and Interior Trim Specification WSS-M8P30-A1. In addition, applicable system requirements that must be met are
6、: Headlining Performance WSS-M15P27-G/latest Sun Visor Performance WSS-M98P3-C/latest Moonroof Performance WSS-M8P23-B/latest Interior Wrapped Components WSS-M15P45-C/latest Polyurethane Foam Performance WSS-M99P48-A1-A3/latest 3.3 CONDITIONING AND TEST CONDITIONS All test values are based on materi
7、al conditioned 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. 3.4 In addition to the requirements listed herein, the face fabric shall meet
8、all requirements of the applicable material specification. The material specification shall take precedence over the performance specification, for any requirement that differs from the performance specification. ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-B1 Copyright 2018, Ford Global Technologie
9、s, LLC Page 2 of 10 3.5 CONSTRUCTION Face fabric shall be specified in the individual material specification. Backing materials to face fabric (scrim, foam or coatings) should be applied as required to meet application and process requirements and should be present for composite approval. 3.6 APPEAR
10、ANCE The color, pattern, finish and hand shall match the approved Corporate Design master sample. 3.7 FOGGING (PHOTOMETRIC) (SAE J1756, 3 h at 100 C heating, 21 C Cooling plate, post testing conditioning 16 h) Fog Number 70 min Formation of clear film, droplets or crystals is cause for rejection All
11、 materials, parts and components should be stored in an open environment for 14-28 days after manufacture, and then must be bagged in sealed polyethylene (PE) or PE coated aluminum bags for shipping. Parts for testing must be labelled with supplier and date of manufacture. Sample shall be tested as
12、part of a production assembly composite if it is 100% bonded. If not 100% bonded, test each component separately. 3.8 ODOR (FLTM BO 131-03) Condition 1 Rating 3 max Condition 2 Rating 3 max Condition 3 Rating 3 max 3.9 FLAMMABILITY (ISO 3795) Burn Rate 100 mm/minute max Headliner fabric/foam composi
13、te shall be tested as 100% fully bonded to the headliner substrate as specified in WSS-M15P27-G/latest. Sun Visor fabric/foam laminate must use appropriate foam to meet the 100mm/min. max as a fabric/foam composite if not 100% fully bonded to substrate. Pillar/Roller Shade fabric/foam or fabric/scri
14、m laminate must use appropriate foam or backing to meet the 100mm/min. max as a composite if not 100% fully bonded to substrate. 3.10 CONSTRUCTION PROPERTIES 3.10.1 Breaking Strength 150N min (ASTM D5034 Grab Method, 300 mm/min speed Average of 5 samples in each direction) 3.10.1.1 Breaking Strength
15、 Retention after Resistance to Interior Weathering (FLTM BO 116-01, ASTM D5034 Grab Method, 300 mm/min speed Average of 5 samples in each direction) ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-B1 Copyright 2018, Ford Global Technologies, LLC Page 3 of 10 Headliner, Roller Shade, Moon Roof Face Fabr
16、ic application 225.6 kJ/m2150N min Sun Visor, Pillar and Backing Fabric of Roller Shade, Moon Roof application 977.6 kJ/m2 150N min 3.10.2 Resistance to Abrasion 150 cycles (SAE J948, 500 g, CS-10 wheels) No evidence of excessive surface deterioration. The resistance to abrasion of production materi
17、als shall be equal to or better than that exhibited by the sample originally approved by the Materials Engineering Activity. The print on printed fabrics shall not be removed. See Figures 1 through 4 for pass fail conditions. Figure 1: Taber Abrasion Pass Condition Knit Fabric Design intent of patte
18、rn can be observed in pass conditions. Little to no wear is exhibited. ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-B1 Copyright 2018, Ford Global Technologies, LLC Page 4 of 10 Figure 2: Taber Abrasion Pass Condition Nonwoven Fabric Figure 3: Taber Abrasion Fail Condition Knit Fabric Excessive wear
19、 and loss of design intent pattern is observed in a fail condition. ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-B1 Copyright 2018, Ford Global Technologies, LLC Page 5 of 10 Figure 4: Taber Abrasion Fail Condition Nonwoven Fabric 3.10.3 Resistance to Fiber Loss 25 cycles (SAE J1530-A, 500 g load, H
20、-18 wheels) No evidence of fiber pullout in excess of the material originally approved by Materials Engineering. See Figures 5 through 8 for pass and fail conditions. Figure 5: Taber Snag Pass Condition Knit Fabric Design intent of pattern can be observed in pass conditions. Little to no fiber pullo
21、ut is exhibited. ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-B1 Copyright 2018, Ford Global Technologies, LLC Page 6 of 10 Figure 6: Taber Snag Pass Condition Nonwoven Fabric Figure 7: Taber Snag Fail Condition Knit Fabric Excessive fiber pull-out and loss of design intent pattern is observed in a
22、fail condition. ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-B1 Copyright 2018, Ford Global Technologies, LLC Page 7 of 10 Figure 8: Taber Snag Fail Condition Nonwoven Fabric 3.10.4 Resistance to Mildew Specimen size is 200 x 200 mm unless part size is smaller. Expose for 7 days in a humidity cabine
23、t maintained at 98 +/- 2% relative humidity and 38 +/- 2 C. Evaluation After exposure remove the part from the cabinet and evaluate (smell the sample) immediately. The part shall exhibit no visible evidence of mildew growth and/or objectionable odor after the exposure. 3.11 COLOR PROPERTIES 3.11.1 R
24、esistance to Interior Weathering (FLTM BO 116-01, ISO 105-A02/AATCC Evaluation Procedure 1) Headliner, Roller Shade (Face Fabric) 225.6 kJ/m2Rating 4 min Sun visor, Pillar Wrap, Roller Shade (Backing Fabric) 977.6 kJ/m2Rating 4 min The test specimen shall not show any change of color lower than indi
25、cated rating. Any spotty or non-uniform staining, discoloration or color tone change shall be cause for rejection. In addition, the material shall not exhibit blistering, or delamination. 3.11.2 Resistance to Heat Aging Rating 4 min (7 days at 100 +/- 2 C, ISO 105-A02/ AATCC Evaluation Procedure 1)
26、ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-B1 Copyright 2018, Ford Global Technologies, LLC Page 8 of 10 Evaluation The test specimen shall not show any change of color lower than indicated rating. Any spotty or non-uniform staining, discoloration or color tone change shall be cause for rejection.
27、 In addition, the material shall not exhibit blistering, or delamination. 3.11.3 Crocking Test (FLTM BN 107-01, AATCC Evaluation Procedure 2) Dry Rating 4 min Wet Rating 4 min 3.11.4 Soiling and Cleanability of Cloth (FLTM BN 112-08, AATCC Evaluation Procedure 2) Headliner, Pillar Agent: Soil Only M
28、oon roof/Roller shade, Sun visor Agents: Soil, Grease Standard Soil Rating 4 min Grease Rating 4 min 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Materi
29、al 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 Materials Engineering. The supplier shall submit a completed copy of their laboratory test reports, signed by a
30、 qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of the Material Specification. Tested material samples must be available for review upon request and kept for a minimum of one year. Upon request, the supplier will review the assoc
31、iated quality control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.2 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any ch
32、anges 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 Technical Assistance (STA), Purchasing, and Materials Engineering activities of the proposed changes (with reaso
33、ns) by submission of a completed Suppliers 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)
34、sign off must be kept until Job 1. ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-B1 Copyright 2018, Ford Global Technologies, LLC Page 9 of 10 4.3 RESTRICTED SUBSTANCE MANAGEMENT STANDARD Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this doc
35、ument. The restrictions are identified in the Restricted Substance Management Standard WSS-M99P9999-A1 which is updated yearly. It is the suppliers responsibility to comply with this standard on a continuing basis through IMDS and or GMAP reporting. 5. SUMMARY OF REVISIONS 2018 06 15 Added interior
36、weathering to New Construction Approval in Table 1. 2018 04 17 Removed DV/PV test plan section Added that the material must also meet WSS-M8P30-A1 Removed section 3.12 lamination requirements 09 15 2017 Editorial Corrected suffix, corrected test title in table 1 section 3.10.3 ENGINEERING MATERIAL S
37、PECIFICATION WSS-M8P27-B1 Copyright 2018, Ford Global Technologies, LLC Page 10 of 10 Table 1 Paragraphs Sample Size New Color Approval New Construction Approval 3.2 WSS-M8P30-A1/latest See performance specification x 3.7 Fogging 3 X 3.8 Odor 3/condition X 3.9 Flammability 5 MD/XMD X X (when not 100
38、% bonded to substrate) 3.10 Construction Properties 3.10.1 Breaking Strength 5 samples MD/XMD X 3.10.1.1 Retained breaking Strength, Ultraviolet Deterioration 5 samples MD/XMD X 3.10.2 Resistance to Abrasion 1 X 3.10.3 Resistance to Fiber Loss 1 X 3.10.4 Resistance to Mildew 1 X 3.11 Color Properties 3.11.1 Resistance to Interior Weathering 1 per level for application X X 3.11.2 Resistance to Heat Aging 1 X 3.11.3 Resistance to Crocking 1 per condition X 3.11.4 Soiling and Cleanability 1 per Agent X
