1、 ENGINEERING MATERIAL SPECIFICATION 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 other
2、wise fabricated. 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
3、with caution on second and third row seats. Potential concerns may arise with fiber snagging and pilling. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements for Production materials (WSS-M99P1111
4、-A). 3.1.1 Vehicle Interior Environment Quality Materials/Component Performance Requirements Materials used in interior applications must meet the requirements outlined in WSS-M99P2222-D1. Data for the component shall be performed at the appropriate program milestone. 3.1.2 In addition to the requir
5、ements listed herein, the individual carpet assembly components 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. 3.1.3 Heel pads, when requi
6、red, shall meet the requirements of WSS-M15P37-B. Insulation materials shall meet the requirements of WSS-M99P32-C/latest. 3.2 SAMPLE SELECTION See Table 1 and 2 for sample size and testing requirements. When production test specimens are taken from an area in the carpet with padding, the padding sh
7、ould be stripped away as much as possible before evaluation, unless 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 rol
8、l stock will be reviewed for initial approval. Final approval will 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. Date Action Revisions Rev. 1 2014 07 24 Revised See Summary of Revisions L. Sinclai
9、r, NA 2010 07 16 Activated J. Williams, EU, L. Sinclair, NA Controlled document at www.MATS Copyright 2014, Ford Global Technologies, LLC Page 1 of 15 ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B 3.3 APPEARANCE (FLTM BI 109-01) The color, pattern, and finish shall match the approved Design Center
10、master sample, or shall be as specified on the Engineering Drawing. 3.4 WEIGHT (FLTM BN 106-01) The weight shall be as 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 su
11、pplier shall calculate the total fiber weight after subtracting the actual weight of the primary backing for each batch and shall not use the nominal value. 3.5 COMPOSITION AND CONSTRUCTION Shall be as specified on the Material Specification The Floor Carpet Supplement Form shall be completed and su
12、bmitted to Materials Engineering with the construction package. Backcoating: The backcoating shall form a continuous 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 r
13、equired within the specification and during normal field conditions. The backcoat shall thoroughly saturate the base 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 abrasi
14、on and fiber loss, but backcoat shall not be visible on the face of the pile fiber. 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 delamin
15、ate under normal handling and shipping operations. Adhesion properties must meet requirements in WSS-M99P32-C/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
16、 and tears. 3.6 PHYSICAL PROPERTIES In 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 3.5. 3.6.1 Breaking Strength (ASTM D 5034 Grab Method, 305
17、 mm/minute jaw speed) Floor Other Trim Min Min WMD 400 N 300 N AMD 400 N 300 N Copyright 2014, Ford Global Technologies, LLC Page 2 of 15 ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B 3.6.2 Tear Strength (Trapezoid) Dry Only (ASTM D 5587, Option 1 (Multiple Peak Force Average) Floor No loss of adhe
18、sion, color change, wrinkling or de lamination is allowed at the completion of the test. There shall be no unacceptable odor after completion of the test. 2) Functionally/Dimensionally - no excessive expansion, shrinking, or warping that will interfere with normal functional operations. No movement
19、exceeding what is required on the Engineering drawing from the original installed position during or after the test. No movement exceeding the general tolerance on the drawing for the component unless otherwise stated on the Engineering Drawing. For initial construction approval run evaluation on pl
20、aques 300 mm by 300 mm in size. No more than 2% expansion or contraction in any direction on the plaque. 3.8.2 Long Term Heat Exposure (See sample preparation, measurement technique and test procedure from 3.8.1) 3.8.2.1 Horizontal or vertical parts BELOW THE BELT-LINE (e.g., door panels, lower quar
21、ter trim panels, glove box doors, overhead consoles, and floor consoles that are not integrated with the instrument panel and the unit stands alone): 7 days at 90 +/- 2 C 3.8.2.2 Non-sun loaded floor level parts (e.g., scuff plates and kick panels, floor carpet) 7 days at 80 +/- 2 C Requirements: Th
22、e trimmed assemblies shall remain relatively unaffected by the exposure cycles during and after the tests as demonstrated: (1) Tactually/visually - (AATCC Procedure 1, Rating 4, min); No loss of adhesion, color change, wrinkling or de lamination is allowed at the completion of the test. There shall
23、be no unacceptable odor after completion of the test. (2) Functionally/Dimensionally - no excessive expansion, shrinking, or warping that will interfere with normal functional operations. No movement exceeding what is required on the Engineering drawing from the original installed position during or
24、 after the test. No movement exceeding the general tolerance on the drawing for the component unless otherwise stated on the Engineering Drawing. For initial construction approval run evaluation on plaques, 300 mm by 300 mm in size. No more than 2% expansion or contraction in any direction on the pl
25、aque. 3.8.3 Room Temperature Impact Resistance (Load Floors only) (23 +/- 2 C) Rubber Ball 4.5 kg weight, 127 mm dia 60 +/- 5, Durometer “A“, (ISO 686/ASTM D 2240) Copyright 2014, Ford Global Technologies, LLC Page 6 of 15 ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B Test Method: Conduct this test
26、 with the trim assembly mounted on an actual 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 informati
27、on) Drop Height Load Floor 500 mm The assembly shall show no evidence of cracking or breaking and shall fully recover from indentation in the time required for the assembly to return to 23 +/- 2 C. 3.8.4 Adhesion of Cover Material to Substrate (Load Floor Only) (ASTM D 413, Machine Method, Strip Spe
28、cimens Type A, sample size 200 x 50 mm, avg. 4 samples, jaw speed 305 mm/minute.) Original 10 N min Cycled 7 N min (Short Term Environmental Cycling para. 3.8.1) Heat 7 N min (Long Term Heat Exposure para. 3.8.2) Test Method: The above method is to be employed for all dielectric, heat or adhesively
29、bonded materials. Individual bond lines less than 25 mm must also meet the above minimum requirements when computed on a per mm 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 the
30、y have been approved by the Materials Engineering Activity. 3.9 APPEARANCE PROPERTIES 3.9.1 Resistance to Fade (FLTM BO 116-01, ISO 105-A02/ AATCC Evaluation Procedure 1) Floor Carpets and Trim Carpets used Rating 4 min below the armrest, 225.6 kJ/m2Trim Carpets used between the beltline Rating 4 mi
31、n and armrest, 601.6 kJ/m2Exposed Load Floor Carpets, 977.6 kJ/m2Rating 4 min The material shall show no change in color tone. 3.9.2 Fiber Deterioration after UV Exposure Floor Carpet: SAE J1530-A, 1000 g load,H-18 wheels Trim applications: SAE J1530-A 500 g load H-10 wheels Floor 1200 cycles Seat B
32、ack, Sidewalls, Exposed load floor 1000 cycles Door Panel 350 cycles Copyright 2014, Ford Global Technologies, LLC Page 7 of 15 ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B No deterioration of fibers or yarns after testing to the applicable exposure levels in section 3.9.1 on molded production com
33、ponents. See Appendix 1 for failure criteria. 3.9.3 Resistance to Crocking (FLTM BN 107-01, ISO 105-A03 AATCC Evaluation Procedure 2) Dry Rating 4 min Wet Rating 4 min 3.9.4 Soiling and Cleanability Rating 4 min. (FLTM BN 112-08, ISO 105-A02/ AATCC Evaluation Procedure 2) 3.10 ODOR (FLTM BO 131-03)
34、Condition 1 Rating 3 max Condition 2 Rating 3 max Condition 3 Rating 3 max 3.11 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 3.12 FLAMMABILITY (ISO 3795) Burn Rate 100
35、mm/minute max 4. GENERAL INFORMATION This information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. Rubber Ball Contact Information Dave Clow, Schap Specialty Machine
36、, Inc 17309 Taft Street Spring Lake, Mi 49456 Ph: (616)846-6530 5. SUMMARY OF REVISIONS 2014 07 23 Removed heat shrinkage, water shrinkage and dimensional stability Added long term cycling Updated short term and long term test procedure to line up with other interior components Corrected short term
37、 cycling and dimensionals Updated the rubber ball contact Table 1 now only rolled goods / non molded testing requirement Added column for new face weight, new backing and new manufacturing location Copyright 2014, Ford Global Technologies, LLC Page 8 of 15 ENGINEERING MATERIAL SPECIFICATION WSS-M8P1
38、6-B Added table 2 for molded / composite testing (DV/PV) Added sample size for heat aging and resistance to mildew test Added peel adhesion bond strength Removed SAE J369 from fogging as a test method. Copyright 2014, Ford Global Technologies, LLC Page 9 of 15 ENGINEERING MATERIAL SPECIFICATION WSS-
39、M8P16-B Table 1: Non Molded Testing New Construction * New Face Fiber Weight Only* New Color Only (MCDCC)* New Manufacturing Location or New Backing* 3.4 Weight 3 3 3 3.5 Composition and Construction 1 1 1 1 3.6.1 Breaking Strength 5 per condition 5 per condition 3 per condition 3.6.2 Tear Strength
40、5 per condition 5 per condition 3 per condition 3.6.3 Heat Ageing 1 1 1 3.6.4 Stretch and Set (for seating applications only) 3 per condition 3 per condition 3 per condition 3.6.5 Mildew Resistance 1 1 3.7.1 Resistance to Abrasion 6 samples from each of 3 batches of non molded product + run one samp
41、le to failure 3 3 3 3.7.2 Resistance to Snagging 6 samples from each of 3 batches of non molded product 3 3 3 3.7.3 Tuft Pull 3 per condition 3 per condition 3 per condition 3.8.1 Short Term Cycling 1 1 3.8.2 Long Term Cycling 1 1 3.9.1 Resistance to Fade 1 1 3.9.2 Fiber Deterioration 1 1 3.9.3 Resi
42、stance to Crocking 1 per condition 1 per condition 3.9.4 Soiling and Cleanability 1 per condition 1 per condition 3.10 Odor 1 per condition 1 per condition 3.11 Fogging (Plates) 3 1 3.12 Flammability* 5 5 5 *Construction approval of a new face material will not be granted until assembly testing on a
43、 production representative substrate and process has been tested. New construction also includes new denier or new fiber supplier. *Sample size is Burn Rate dependent. Where flammability is required FMVSS 302 can be used instead of the ISO method. Note: For Color Properties surrogate data is accepta
44、ble for carryover fiber suppliers and colors. * Indicates that the backing and denier / supplier has been approved to the given material specification. Change in face fiber weight only. * New color only indicates that fiber supplier/denier/weight and construction are all the same as to what was orig
45、inally approved. Changes in the blend of the fiber for a new color will require a new construction submit and full testing. *New backing indicates that the face carpet construction has already been fully approved. Tests italicized in the table must have samples reviewed and kept by Materials Enginee
46、ring for construction package approval. The numbers in the table represent the number of specimens needed per sample. Copyright 2014, Ford Global Technologies, LLC Page 10 of 15 ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B Table 2: Molded / Composite Testing Component (DV)* Component (PV) 3.4 Weig
47、ht 3 3 3.5 Composition and Construction 1 1 3.6.4 Stretch and Set (Seating Only) 3 per condition 3 per condition 3.6.5 Mildew Resistance 1 3.7.1 Resistance to Abrasion 3 specimens 3 specimens + run 1 sample to failure 3.7.2 Resistance to Snagging 3 specimens 3 specimens + run 1 sample to failure 3.7
48、.3 Tuft Pull 3 per condition 3 per condition 3.8.1 Short Term Cycling 1 1 3.8.2 Long Term Cycling 1 1 3.8.3 Impact Resistance (Load Floors Only) 3 1 3.8.4 Bond Strength (Load Floors Only) 3 3 3.10 Odor 1 per condition 1 per condition 3.11 Fogging (plates) 3 3 3.12 Flammability* 5 5 *Sample size is B
49、urn Rate dependent. Where flammability is required FMVSS 302 can be used instead of the ISO method. * Required testing to be performed before new construction will be approved. * No surrogate test data is allowed for PV. Copyright 2014, Ford Global Technologies, LLC Page 11 of 15 ENGINEERING MATERIAL SPECIFICATION WSS-M8P16-B Appendix 1: Abrasion Failure Criteria Figure 1: Unacceptable Abrasion sample for tufted carpet. Figure
