1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 3 2017 12 14 Revised See Summary of Revisions L. Sinclair, NA 2016 07 08 Revised See Summary of Revisions L. Sinclair, NA 2010 07 16 Activated J. Williams, EU, L. Sinclair, NA Controlled document at www.MATS Copyright 2017, Ford Global T
2、echnologies, LLC Page 1 of 16 PERFORMANCE, CARPET, FLOOR AND TRIM WSS-M8P16-B 1. SCOPE The materials defined by this specification are automotive quality carpet assemblies, for floor, door trim, seat backs in exposed load compartment applications and exposed load floors whether molded or otherwise f
3、abricated. 2. APPLICATION This specification was released originally for passenger compartment floor coverings and other automotive trim applications. 2.1 LIMITATIONS The use of non woven carpets is not applicable to first row seat backs (full covering) but may be used in the toe kick area or with c
4、aution on second and third row seats. Potential concerns may arise with fiber snagging and pilling. Use only in areas with limited customer interactions. Vacuumability of non-wovens is difficult due to the construction, pet hair, debris can become entrapped in the loops of the non woven construction
5、. Vacuumability can be significantly improved by switching to a tufted product. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification is performance based and does not have approved sources. 3.2 CONDITIONING AND TEST CONDITIONS All test values are based on material conditioned for not less than 24
6、 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 PERFORMANCE CRITERIA 3.3.1 In addition to the requirements listed herein, the individual carpet assembly comp
7、onents shall meet all the requirements of the applicable material specifications for the carpet, padding, adhesive, barrier, or trim application as well as any functional/SDS requirements as outlined by Engineering. Material specification requirements are to be used for initial qualification of mate
8、rials. 3.3.2 Insulation materials shall meet the requirements of WSS-M99P32-D1/latest. Mold in Color plastic components shall meet the requirements of WSS-M15P4-G/latest. Toe pads/foot rest covers shall meet the requirements of WSS-M15P37-C1/latest. 3.4 SAMPLE SELECTION See Table 1 and 2 for sample
9、size and testing requirements. When production test specimens are taken from an area in the carpet with padding, the padding should be stripped away as much ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B Copyright 2017, Ford Global Technologies, LLC Page 2 of 16 as possible before evaluation, unless
10、 otherwise specified. For floor carpet applications, test specimens for strength and abrasion properties shall be taken from molded or stressed areas of the carpet assembly, i.e. the front footwell unless otherwise specified. The roll stock will be reviewed for initial approval. Final approval will
11、be granted on a program by program basis on the molded product once the specification testing is reviewed and signed off on by Materials Engineering. 3.5 APPEARANCE The color, pattern, and finish shall match the approved Design Center master sample. 3.6 WEIGHT (FLTM BN 106-01) The weight shall be as
12、 specified in the individual material specification and Floor Carpet Construction Supplement. The weight per square meter is applicable to rollstock carpet. For tufted carpets the supplier shall calculate the total fiber weight after subtracting the actual weight of the primary backing for each batc
13、h and shall not use the nominal value. 3.7 COMPOSITION AND CONSTRUCTION Shall be as specified on the Material Specification. The Floor Carpet Supplement Form shall be completed and submitted to Materials Engineering with the construction package. Backcoating: The backcoating shall form a continuous
14、and uniform coating over the back of the carpet so that all pile fibers are covered. Also, the backcoat shall show no evidence of cracking or crumbling during any of the evaluations required within the specification and during normal field conditions. The backcoat shall thoroughly saturate the base
15、of the pile fiber bundles to ensure adequate fiber lock. Penetration of the backcoat through to the face of the carpet shall be controlled to provide the required resistance to abrasion and fiber loss, but backcoat shall not be visible on the face of the pile fiber. If the carpet does not have a bac
16、k coating it shall be a fused backed carpet. Adhesion: The carpet material and substrate shall be properly bonded together with the backcoating and/or adhesive where necessary, to ensure that the various components of the finished carpet assembly do not delaminate under normal handling and shipping
17、operations. Adhesion properties must meet requirements in WSS-M99P32-D1/latest. Secondary Backing Fabrics/Heavy Layer (if applicable): The secondary fabric/heavy layer shall be uniformly and continuously bonded across the entire carpet and shall be free of voids and tears. 3.8 PHYSICAL PROPERTIES In
18、 addition to the following minimum requirements, production carpet assemblies must withstand normal handling during shipping and installation, without tearing. For additional information refer to Section 3.7. 3.8.1 Breaking Strength (ASTM D 5034 Grab Method, 305 mm/minute jaw speed) Floor Other Trim
19、 Min Min WMD 400 N 300 N AMD 400 N 300 N ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B Copyright 2017, Ford Global Technologies, LLC Page 3 of 16 3.8.2 Tear Strength (Trapezoid) Dry Only (ASTM D 5587, Option 1 (Multiple Peak Force Average) Floor & Trim WMD 90 N min AMD 90 N min 3.8.3 Stretch and Se
20、t (for seat back applications only) (SAE J855) WMD & AMD Stretch 18% max WMD & AMD Set 5% max 3.8.4 Resistance to Mildew (7 days at 98 +/- 2% relative humidity and 38 +/- 2 C, Specimen size 100 x 100 +/- 2 mm) Remove the part from the cabinet and evaluate (smell the sample) immediately. The part sha
21、ll exhibit no visible evidence of mildew growth and / or objectionable odor after the 7 day exposure. In addition, part must not separate layers or show any other visual deterioration. 3.8.5 Short Term Environmental Cycling Rating 4 min (FLTM BO 040-01, Procedure A, AATCC Evaluation Procedure 1 temp
22、erature per below) 2% max Shrinkage/ Expansion* Floor components 80 C Exposed load floor and seat backs 90 C Note: For Construction Approval/New Manuaturing Location run evaluation on plaques (210 x 297 mm). *For construction approval only. 3.8.6 Long Term Environmental Cycling Rating 4 min (FLTM BO
23、 040-01, Procedure B, AATCC Evaluation Procedure 1, temperature per below) 2% max Shrinkage/ Expansion* Floor components 80 C Exposed load floor and seat backs 90 C Note: For Construction Approval/New Manuaturing Location run evaluation on plaques (210 x 297 mm). *For construction approval only ENGI
24、NEERING MATERIAL SPECIFICATION WSS-M8P16-B Copyright 2017, Ford Global Technologies, LLC Page 4 of 16 3.9 WEAR PROPERTIES 3.9.1 Resistance to Abrasion Samples shall be taken from the front footwell in the designated area (See photograph in Appendix 3). No individual test results shall fall below the
25、 number of abrasion cycles specified below. 3.9.1.1 Floor Carpet (FLTM BN 108-02, 1000 g load, H-18 wheels) Rolled Goods 2000 Cycles Molded Product 1500 Cycles 3.9.1.2 Trim Applications (FLTM BN 108-02, 500 g load, H-10 wheels) Seat back, 1200 cycles Exposed load floor areas Door Panel /Side Walls 4
26、00 cycles Tufted Carpets: There shall be no primary backing visible after abrasion testing, as shown in Appendix 1. Nonwoven Carpets: The carpet shall exhibit no visual evidence of wear through to the foundation of the pile fibers in the abraded area. Failure criteria are shown in Appendix 1. No rop
27、ing is allowed. See Figure 5 for example of roping. No other visual degradation or deterioration of the carpet after testing is allowed. 3.9.2 Resistance To Snagging (non woven floor carpets only) 200 cycles (FLTM BN 108-02, H-18 wheels, 500 g load) Evaluate test specimen every 50 cycles, if fiber p
28、ullout occurs at any of the 50 cycle increments testing should be stopped and considered a failure. All other non woven components 50 cycles No evidence of fiber pullout in excess of the minimum failure criteria shown in Appendix 2. No other visual degradation or deterioration of the carpet after te
29、sting is allowed. 3.9.3 Pile Tuft Pull Strength (Tufted carpets only) (ASTM D1335) 3.9.3.1 Room Temperature 16 N min 3.9.3.2 Tuft Pull after 7 days at 80+/-2 C Pull at Room Temperature 10 N min 3.10 COMPOSITE TESTING 3.10.1 Short Term Environmental Cycling Rating 4 min (FLTM BO 040-01, Procedure A,
30、AATCC Evaluation Procedure 1 ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B Copyright 2017, Ford Global Technologies, LLC Page 5 of 16 80 C for floor components, 90 C for exposed load floor and seat backs) 3.10.2 Long Term Environmental Cycling Rating 4 min (FLTM BO 040-01, Procedure B, AATCC Evalua
31、tion Procedure 1 80 C for floor components, 90 C for exposed load floor and seat backs) 3.10.3 Room Temperature Impact Resistance (Load Floors only) (23 +/- 2 C) Rubber Ball 4.5 kg weight, 127 mm diameter 60 +/- 5, Durometer “A“, Test Method: Conduct this test with the trim assembly mounted on an ac
32、tual or simulated production support foundation using the approved retention methods. Drop the rubber ball from the height specified below at the impact locations indicated on the Engineering Drawing. (See Section 4.0 for rubber ball supplier contact information) Drop Height Load Floor 500 mm The as
33、sembly shall show no evidence of cracking or breaking on the top or reverse side and shall fully recover from indentation. 3.10.4 Adhesion of Cover Material to Substrate (when adhesively bonded to a rigid substrate) (FLTM BN 151-05 speed 300 mm/minute.) Original 10 N min Cycled 7 N min (Short Term E
34、nvironmental Cycling para. 3.10.1) Heat 7 N min (Long Term Heat Exposure para. 3.10.2) Test Method: The above method is to be employed for all dielectric, heat or adhesively bonded materials. Individual bond lines less than 25 mm must also meet the above minimum requirements when computed on a per m
35、m basis. Special bonded sections such as corrugated design, etc., as well as extra wide bonded areas exhibiting low prorated bond strength values may be accepted provided they have been approved by the Design and Release Engineering. 3.11 APPEARANCE PROPERTIES 3.11.1 Resistance to Interior Weatherin
36、g (FLTM BO 116-01, sample size 60 x 150 mm minimum AATCC Evaluation Procedure 1) Floor Carpets and Trim Carpets used Rating 4 min below the armrest, 225.6 kJ/m2 Trim Carpets used between the beltline Rating 4 min and armrest, 601.6 kJ/m2 ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B Copyright 2017,
37、 Ford Global Technologies, LLC Page 6 of 16 Exposed Load Floor Carpets, 977.6 kJ/m2 Rating 4 min 3.11.2 Fiber Deterioration after UV Exposure Floor Carpet: FLTM BN 108-02, 1000 g load,H-18 wheels 1200 cycles Trim applications: FLTM BN 108-02, 500 g load H-10 wheels Seat Back, Exposed load floor 1000
38、 cycles Door Panel, Side walls 350 cycles No deterioration of fibers/yarns/backing after testing to the applicable exposure levels in section 3.11.1 on molded production components. See Appendix 1 for failure criteria. 3.11.3 Resistance to Crocking (FLTM BN 107-01, AATCC Evaluation Procedure 2) Dry
39、Rating 4 min Wet Rating 4 min 3.11.4 Soiling and Cleanability Rating 4 min. (FLTM BN 112-08, AATCC Evaluation Procedure 2) 3.12 ODOR (FLTM BO 131-03) Test sample preparation: For parts with any back side adhesively attached items (i.e. felt, flock, tape, hook and loop, foam, etc.) test samples shoul
40、d be cut from areas that include the largest amount of each attached item. Condition 1 Rating 3 max Condition 2 Rating 3 max Condition 3 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
41、 crystals is cause for rejection Test sample preparation: For parts with any back side adhesively attached items (i.e. felt, flock, tape, hook and loop, foam, etc.) test samples should be cut from areas that include the largest amount of each attached item. For shipping, all materials or parts shall
42、 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. After 14-28 days of air exposure, the
43、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: ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B Copyright 2017, Ford Global Technolo
44、gies, LLC Page 7 of 16 supplier, contact information, product code/trade name or part number, manufacturing location, date of manufacture, shipping date, start and end dates of conditioning period and test date. 3.14 FLAMMABILITY (ISO 3795) Burn Rate 100mm/minute max 4. GENERAL INFORMATION This info
45、rmation given below is provided for clarification and assistance 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 inte
46、rest from Purchasing, Design or Product Development, 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 Materi
47、al 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 associated quality control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.2 SUP
48、PLIERS ONGOING RESPONSIBILITY All materials 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 requir
49、ements, the supplier shall notify the affected 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 tested to the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval P
