1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2016 05 24 Released B. Haggart, NA Controlled document at www.MATS Copyright 2016, Ford Global Technologies, LLC Page 1 of 6 ELASTOMERIC PARTS, INTERIOR PERFORMANCE WSS-M9P8-C 1. SCOPE The performance characteristics defined by this sp
2、ecification may be used to evaluate the environmental resistance of elastomeric parts in the passenger compartment. 2. APPLICATION This specification was released originally to be used in conjunction with industry standards or material specifications to provide a coherent structure for all environme
3、ntal testing of elastomeric parts. An elastomeric part is defined as a material with a Durometer A hardness of 90 and below (Such as Soft TPEs TPE-V, SEBS, TEEE, TPU, etc) which fall in the 2D category. Testing must be conducted on parts when possible. See Table 1 for sample size and testing require
4、ments. 2.1 LIMITATIONS Not applicable for dynamic sealing (WSS-M9P9-C), weather strips (WSS-M9P10-B), throw in mat assemblies (WSS-M9P11-A), cargo/trunk mats (WSS-M9P11-A2), engine oil seals (WSS-M9P12-A1), and engine coolant seals (WSS-M9P12-A2). 3. REQUIREMENTS 3.1 APPROVED SOURCES This specificat
5、ion 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 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humidity. Testing of the material should occur
6、in the conditioning environment or soon after removal. 3.3 APPEARANCE Color, gloss, grain, tactile effect shall match master Trim Sample and/or Master Appearance Sample as approved by Color and Materials. 3.4 ENVIRONMENTAL TESTING Sample Preparation All parts shall be fully trimmed including all com
7、ponents packaged in the environment (eg. speakers, hardware, wiring, etc.) and assembled onto actual or representative production support foundations. This includes not only all attaching points, but also any boundary conditions that may restrict movement, unless otherwise specified by the affected
8、Materials Engineering Activity. The retention methods, attachments, and supporting garnish moldings (if any), shall be the same as proposed for production. ENGINEERING MATERIAL SPECIFICATION WSS-M9P8-C Copyright 2016, Ford Global Technologies, LLC Page 2 of 6 Test Procedure Visually evaluate the par
9、t before, during the last half-hour of each cold and hot extreme temperature period, and after the test. Measure the part and record data at all specified locations at room temperature before and after cycling on the production support foundation or test fixture. Subject the number of assemblies spe
10、cified to each of the cycles that follow in paragraphs 3.4.1 and 3.4.2. Automated programmable test cycles based on the listed test conditions may be accepted by prior agreement with the affected Materials Engineering Activity. Ramp speed 1 to 5 C per minute. Record actual ramp speed on data sheet.
11、3.4.1 Short Term Heat, Humidity and Cold Cycle 3.4.1.1 Horizontal or vertical parts AT OR ABOVE THE BELT-LINE: . 5 h at -30 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 5 h at 100+/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 2 h at 50 +/- 2 C and 95 +/- 5% R.H. . 30 min at 23 +/- 2 C and 50% R.H. .
12、 5 h at -30 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 5 h at 100 +/- 2 C 3.4.1.2 Horizontal or vertical parts BELOW THE BELT-LINE: . 5 h at -30 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 5 h at 90 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 2 h at 50 +/- 2 C and 95 +/- 5% R.H. . 30 min at 2
13、3 +/- 2 C and 50% R.H. . 5 h at -30 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 5 h at 90 +/- 2 C 3.4.1.3 Non-sun loaded floor level parts. . 5 h at -30 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 5 h at 80 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 2 h at 50 +/- 2 C and 95 +/- 5% R.H. . 30 m
14、in at 23 +/- 2 C and 50% R.H. . 5 h at -30 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 5 h at 80 +/- 2 C 3.4.2 Long Term Heat Exposure/Sun Load 3.4.2.1 Horizontal or vertical parts AT OR ABOVE THE BELT-LINE: 7 days at 100 +/- 2 C 3.4.2.2 Horizontal or vertical parts BELOW THE BELT-LINE: ENGINEERIN
15、G MATERIAL SPECIFICATION WSS-M9P8-C Copyright 2016, Ford Global Technologies, LLC Page 3 of 6 7 days at 90 +/- 2 C 3.4.2.3 Non-sun loaded floor level parts: 7 days at 80 +/- 2 C Requirements: The assemblies shall remain relatively unaffected by the exposure cycles during and after the tests as demon
16、strated: (1) Tactually/visually - no excessive tackiness, or surface-color change (AATCC Procedure 1, Rating 4, min); no cracking, chalking, wrinkling, distortion, blistering, warping, delamination, blushing, iridescence, hazing, milkiness, staining, waviness, bloom or other objectionable visual app
17、earance. (2) Functionally - no excessive expansion, shrinking, or warping that will interfere with normal functional operations. (3) Any successful attempt to separate the components of coated and/or composite parts must result in cohesive failure only. Any adhesive failure will be cause for rejecti
18、on. 3.4.3 Humidity Exposure (14 d at 38 +/- 1 C, 95 - 100% R.H.) Requirements: The assemblies shall remain relatively unaffected by the exposure cycles during and after the tests as demonstrated: (1) Tactually/visually - no excessive tackiness, or surface-color change (AATCC Procedure 1, Rating 4, m
19、in); no cracking, chalking, wrinkling, distortion, blistering, warping, delamination, blushing, iridescence, hazing, milkiness, staining, waviness, bloom or other objectionable visual appearance. (2) Functionally - no excessive expansion, shrinking, or warping that will interfere with normal functio
20、nal operations. (3) Any successful attempt to separate the components of coated and/or composite parts must result in cohesive failure only. Any adhesive failure will be cause for rejection. 3.4.4 Cold Flexibility at -40 C No cracks (180 bend over a 20 1 mm diameter mandrel, sample size 50 x 150 1 m
21、m) 3.4.5 Ozone Resistance (Except for TPE, TPO) Rating 0 max (FLTM BP 101-01, Procedure A) 3.5 COLOR PROPERTIES 3.5.1 Contact and Migration Staining of Paint (FLTM BP 153-01, ISO 105-A03/ AATCC Evaluation Procedure 2) No migration staining Rating 5 min Slight contact staining permitted Rating 4 min
22、ENGINEERING MATERIAL SPECIFICATION WSS-M9P8-C Copyright 2016, Ford Global Technologies, LLC Page 4 of 6 (NOTE: Only required when an elastomeric part comes in contact with a painted surface.) 3.5.2 Resistance to Crocking Rating 4 min (FLTM BN 107-01, ISO 105-A03/ AATCC Evaluation Procedure 2, Wet Me
23、thod) 3.5.3 Soiling and Cleanability (for light colors only) Rating 3 min (FLTM BN 112-08, ISO 105-A03/ AATCC Evaluation Procedure 2) 3.5.4 Resistance to Fade (FLTM BO 116-01, ISO 105 A-02/AATCC Evaluation Procedure 1) In Vehicle Sunlight Exposure Level FLTM BO 116-01 Test Exposure AATCC Rating Afte
24、r Exposure, min. Severe Exposure: Parts used in these locations Instrument panel top, defroster grille, parcel shelf assembly/package tray, interior rear view mirror housing. 3609.6 kJ/m2 Rating 4 Heavy Exposure: Parts used in these locations Instrument panel lower top cover, 2 tone IP, IP bezel, ai
25、rbag, steering wheel, message center, appliqus and center finish panel. 2406.4 kJ/m2 Rating 4 Above the Belt-line: Parts used in these locations Instrument panel lower, door trim, interior trim, pillars, garnish moldings, seats, head rest, sunshade, sun visor, seat belt webbing & loops, exposed load
26、 floor trim, and luggage cover 977.6 kJ/m2 Rating 4 Below the Belt-line: Parts used in these locations Floor console, radio, radio bezel and lower floor molding. 601.6 kJ/m2 Rating 4 Mild Exposure: Parts used in these locations Lower trim panels, overhead console, headliner, moon roof, carpet and fl
27、oor mats. 225.6 kJ/m2 Rating 4 The material should not exhibit staining, color tone change, change in hue, cracking, crazing, or other deterioration after exposure in accordance with the testing above. Read and report the gloss change. 3.5.4.1 Tackiness of Interior Materials after Weathering Rating
28、4 min (FLTM BO 061-01) 3.6 ODOR (FLTM BO 131-03) Condition 1 Rating 3 max Condition 2 Rating 3 max Condition 3 Rating 3 max . ENGINEERING MATERIAL SPECIFICATION WSS-M9P8-C Copyright 2016, Ford Global Technologies, LLC Page 5 of 6 3.7 PHOTOMETRIC FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling
29、 plate, post test conditioning 16 h) Fog Number 70 min Formation of clear film, droplets or crystals is cause for rejection. 3.8 FLAMMABILITY 100 mm/minute max (ISO 3795/SAE J369) 3.9 HARDNESS, DUROMETER (Shore A), 15 s Delay Report (ASTM D2240/ISO 868) TABLE 1: Test Matrix For Paragraphs: DV PV MCD
30、CC Approval New Color Properties Only Visible Parts Non-visible Parts 3.4.1 Short Term Heat 1 per part number* 1 per part number* 3.4.2 Long Term Heat 1 per part number* 1 per part number* 3.4.3 Humidity Exposure 1 per part number* 1 per part number* 3.4.4 Cold Flexibility 1 1 3.4.5 Ozone Resistance
31、 1 1 3.5.1 Paint Staining 1 1 3.5.2 Crocking 1 1 3.5.3 Soiling and Cleanability 1 1 3.5.4 Resistance to Fade 1 1 3.5.4.1 Tackiness 1 1 3.6 Odor 1 1 3.7 Photometric Fogging 1 1 3.8 Flammability* 1 1 1* 3.9 Hardness 3* 3* * The number of samples is dependent on burn rate. *Surrogate Data NOT Acceptabl
32、e 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 Material Specifications. 4.1 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equivalent in all cha
33、racteristics 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 affected Supplier Technical Assista
34、nce (STA), Purchasing, and Materials Engineering activities of the proposed changes (with reasons) by submission of a completed Suppliers Request for Engineering Approval, SREA. ENGINEERING MATERIAL SPECIFICATION WSS-M9P8-C Copyright 2016, Ford Global Technologies, LLC Page 6 of 6 For parts and comp
35、onents using Ford Engineering Material Specifications, all samples tested to the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. 4.2 RESTRICTED SUBSTANCE MANAGEMENT STANDARD Substance restriction
36、s 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 with this standard on a continuing basis through IMDS and or GMAP reporting. 5. SUMMARY OF REVISIONS
