1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revision Rev. 00 2015 04 09 Released D. Murtonen, A. Wagenhals, FA Controlled document at www.MATS Copyright 2015, Ford Global Technologies, LLC Page 1 of 7 PERFORMANCE, ROOF SYSTEMS FABRIC, INTERIOR WSS-M8P27-A1 1. SCOPE The material defined by this s
2、pecification 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 applications such as headliner, pillar, sun visor, roller shade, and moon/sun roof. 2. APPLICATION This specification was released
3、 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 includes knits, woven or non-woven construction. This includes any combination of composites with foam, scrim or fabric that is
4、 applicable to the part assembly. In addition, applicable system requirements that must be met are: Headlining Performance WSS-M15P27-F/latest Sun Visor Performance WSS-M98P3-B/latest Interior Wrapped Components- WSS-M15P45-B/latest Polyurethane Foam Performance WSS-M99P48-A1-A3/latest Testing must
5、be conducted according to Table 1 for each approval phase with the appropriate backing for the application. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS 3.1.1 Material suppliers and part producers must conform to the Companys Standard Requirements for Production Materials (WSS
6、M99P1111-A/latest). 3.1.2 Vehicle Interior Environment Quality Materials/Component Performance Requirements Materials used in interior applications must meet the requirements outlined in WSS-M99P2222-D1/latest. 3.2 CONSTRUCTION Face fabric shall be specified in the individual material specification.
7、 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. 3.3 APPEARANCE The color, pattern, finish and hand shall match the approved Corporate Design master sample. ENGINEERING
8、 MATERIAL SPECIFICATION WSS-M8P27-A1 Copyright 2015, Ford Global Technologies, LLC Page 2 of 7 3.4 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 for rejection. 3.5 ODOR Rating 3 max
9、(FLTM BO 131-03, all 3 conditions) 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate 100 mm/minute max Headliner fabric/foam composite shall be tested as 100% fully bonded to the headliner substrate as specified in WSS-M15P27-F/latest. Sun Visor fabric/foam laminate must use appropriate foam to meet th
10、e 100mm/min. max as a fabric/foam composite if not 100% fully bonded to substrate. Pillar/Roller Shade fabric/foam or fabric/scrim laminate must use appropriate foam or backing to meet the 100mm/min. max as a composite if not 100% fully bonded to substrate. 3.7 CONSTRUCTION PROPERTIES 3.7.1 Strength
11、 Properties 3.7.1.1 Breaking Strength 250N min (ASTM D5034 Grab Method, 300 mm/min speed Average of 5 samples in each direction) 3.7.1.2 Breaking Strength Retention after Resistance to Interior Weathering (FLTM BO 116-01) 3.7.1.2.1 Retained Breaking Strength (ASTM D5034 Grab Method, 300 mm/min speed
12、 Average of 5 samples in each direction) Headliner, Roller Shade, Moon Roof Face Fabric application 225.6 kJ/m2 250N min Sun Visor, Pillar and Backing Fabric of Roller Shade, Moon Roof application 977.6 kJ/m2 250N min ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-A1 Copyright 2015, Ford Global Techno
13、logies, LLC Page 3 of 7 3.7.2 Resistance to Abrasion 150 cycles (SAE J948, 500 g, CS-10 wheels) No evidence of excessive surface deterioration. The resistance to abrasion of production materials shall be equal to or better than that exhibited by the sample originally approved by the Materials Engine
14、ering Activity. The print on printed fabrics shall not be removed. See figures 1 and 2 for pass fail conditions. Figure 1: Taber Abrasion Pass Condition Figure 2: Taber Abrasion Fail Condition Excessive wear and loss of design intent pattern is observed in a fail condition. Design intent of pattern
15、can be observed in pass conditions. Little to no wear is exhibited. ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-A1 Copyright 2015, Ford Global Technologies, LLC Page 4 of 7 3.7.3 Resistance to Fiber Loss 25 cycles (SAE J1530-A, 500 g load, H-18 wheels) No evidence of fiber pullout in excess of the
16、material originally approved by Materials Engineering. See figures 3 and 4 for pass and fail conditions. Figure 3: Taber Snag Pass Condition Figure 4: Taber Snag Fail Condition Excessive fiber pull-out and loss of design intent pattern is observed in a fail condition. Design intent of pattern can be
17、 observed in pass conditions. Little to no fiber pullout is exhibited. ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-A1 Copyright 2015, Ford Global Technologies, LLC Page 5 of 7 3.7.4 Resistance to Mildew Specimen size is 200 x 200 mm unless part size is smaller. Expose for 7 days in a humidity cabin
18、et 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. 3.8 COLOR PROPERTIES 3.8.1 Re
19、sistance to Interior Weathering (FLTM BO 116-01, ISO 105-A02/AATCC Evaluation Procedure 1) Headliner, Roller Shade (Face Fabric) 225.6 kJ/m2 Rating 4 min Sun visor, Pillar Wrap, Roller Shade (Backing Fabric) 977.6 kJ/m2 Rating 4 min The test specimen shall not show any change of color lower than ind
20、icated 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. 3.8.2 Resistance to Heat Aging Rating 4 min (7 days at 100 +/- 2 C, ISO 105-A02/ AATCC Evaluation Procedure 1)
21、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. In addition, the material shall not exhibit blistering, or delamination. 3.8.3 Resistance to Crocking (FLT
22、M BN 107-01, ISO 105-A02/AATCC Procedure 2) Dry Rating 4 min Wet Rating 4 min 3.8.4 Soiling and Cleanability of Cloth (FLTM BN 112-08) Rating 4 min Headliner, Pillar Agent: Soil Only Moon roof/Roller shade, Sun visor Agents: Soil, Grease 3.9 LAMINATE REQUIREMENTS In addition to the requirements list
23、ed in this paragraph, the production laminates shall meet Fogging, Odor, Flammability requirements and the Urethane Foam Performance specification. All of the tests must be additionally performed by the production lamination suppliers. ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-A1 Copyright 2015,
24、Ford Global Technologies, LLC Page 6 of 7 3.9.1 Peel Adhesion Strength, (face and backing fabrics) (FLTM BN 151-05, aging condition specified below) Face fabric to foam or Flame Bonded Adhesive Bonded Face Fabric to backing (N min) (N min) 3.9.1.1 As received 6.0 6.0 3.9.1.2 After aging 6.0* 6.0* 7
25、days at 100 +/- 2 C, 3.9.1.3 Autoclave 6.0* 6.0* (ASTM D3574, J2, 3 h at 115 C) Backing fabric to foam 3.9.1.4 As received 6.0 6.0 3.9.1.5 After aging 6.0* 6.0* 7 days at 100 +/- 2 C In addition, the fabric/backing fabric shall not separate cleanly from the foam surface. The peeled fabric/backing sp
26、ecimen shall exhibit foam particles adhering to the peeled surface. *Test required for initial approval only not for production control lots. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact fo
27、r questions concerning Engineering Material Specifications. 5. SUMMARY OF REVISIONS ENGINEERING MATERIAL SPECIFICATION WSS-M8P27-A1 Copyright 2015, Ford Global Technologies, LLC Page 7 of 7 Table 1 : WSS-M8P27-A1 Paragraphs Sample Size New Color Approval New Construction Approval 3.4 Fogging 3 X 3.5
28、 Odor 3/condition X X 3.6 Flammability (when not 100% bonded to substrate) 5 MD/XMD X X 3.7 Construction Properties 3.7.1 Strength Properties 3.7.1.1 Breaking Strength 5 samples MD/XMD X 3.7.1.2 Ultraviolet Deterioration 3.7.1.2.1 Retained breaking strength 5 samples MD/XMD X 3.7.2 Resistance to Abr
29、asion 1 X 3.7.3 Resistance to Snagging 1 X 3.7.4 Resistance to Mildew 1 X 3.8 Color Properties 3.8.1 Resistance to Fade 1 per level for application X 3.8.2 Resistance to Heat Aging 1 X 3.8.3 Resistance to Crocking 1 per condition X 3.8.4 Soiling and Cleanability 1 per Agent X 3.9 Laminate Requirements 3.9.1 Peel Adhesion Strength Fabric to Foam 3.9.1.1 As received 3 per condition X 3.9.1.2 After aging 3 per condition X 3.9.1.3 Autoclave 3 per condition X Backing Fabric to foam 3.9.1.4 As received 3 per condition X 3.9.1.5 After aging 3 per condition X
