1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 1 2016 10 26 N Status Replaced by WSS-M9P9-D G. Eaton, NA 2014 10 27 Released G. Eaton, FNA Controlled document at www.MATS Copyright 2016, Ford Global Technologies, LLC Page 1 of 14 DYNAMIC SEALING PERFORMANCE SPECIFICATION WSS-M9P9-C N
2、OT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the minimum durability and performance requirements of closure, trim, and body flange mounted dynamic sealing components that are included in CPSC 01.07.02, 01.07.08, 01.07.09, and 01.07.10. 2. APPLICATION This performance specificatio
3、n was released originally for coated and/or uncoated dynamic sealing components used in closure, body, and trim mounted applications. Material selection must be reviewed and approved by Ford Materials Engineering. In addition to the requirements listed in this specification, requirements listed in t
4、he Dynamic Sealing (DYNA) SDS must be met unless otherwise agreed to by Ford engineering, including, but not limited to: RQT-010700-009303 (legacy DY-0003): Insertion Force Flanges RQT-010700-009304 (legacy DY-0004): Extraction Force Flanges RQT-010700-009318 (legacy DY-0018): Compression Set RQT-01
5、0700-009331 (legacy DY-0033): Key Life Aging CLD (Compression Load Deflection) RQT-010700-009334 (legacy DY-0036): Compression Load Deflection (CLD) RQT-010700-009336 (legacy DY-0038): Low Temperature Performance RQT-010700-009338 (legacy DY-0040): Coating 2.1 LIMITATIONS This performance specificat
6、ion excludes belt weatherstrips and/or glass run weatherstrips integral to CPSC 01.07.01. 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-A). For thermop
7、lastic materials, this specification is based on virgin material only. The use of regrind is permitted for economic/environmental reasons, with compliance as indicated in WSS-M99P1111-A. ENGINEERING MATERIAL SPECIFICATION WSS-M9P9-C Controlled document at www.MATS Copyright 2016, Ford Global Technol
8、ogies, LLC Page 2 of 14 Materials used in interior applications must meet the requirements outlined in WSS-M99P2222-D1/Latest, Performance, Vehicle Interior Environment Quality Material/Component Requirements. Data must be included in material submission package. For odor testing, all weatherstrips
9、should only be tested at 23C, 45C, and 65C. 3.2 DYNAMIC SEAL PERFORMANCE MANAGEMENT All seals evaluated under this performance specification must have Supplement A completed and signed by Ford Materials Engineering, the material/coatings supplier, and the Tier One supplier. Compatibility of the seal
10、 coating with seal base material (s) is the responsibility of the Tier One supplier. The Tier One supplier shall have the seal tested against the applicable performance specification requirements, and must keep all tested samples for review by Ford Materials Engineering. Table 3.0 describes the cons
11、truction of the dynamic seal, and must be submitted with Supplement A. (Reference Supplement A). The Tier One supplier is responsible for including Table 3.0 and this performance specification on the part drawing. 3.3 FINISHED PARTS Testing must be conducted at Design Verification (DV) and Product V
12、alidation (PV) per Table 2.0 (including Supplement A), unless otherwise agreed to by Materials Engineering, and on actual production parts or a section of the part whenever possible. Where part dimensions limit testing equipment access, representative test samples may be substituted. DV Testing must
13、 follow the Process Window DOE, paragraph 3.5. PV Testing must be conducted on actual production processed parts. No change in material, facility, or processing is permitted without written approval from Ford Materials Engineering Activity, via SREA. All test values are based on parts conditioned in
14、 a controlled atmosphere of 23 +/- 2 C and 50% R.H. for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. 3.4 APPEARANCE: COLOR, FINISH, SURFACE (FLTM BI 109-01) The part shall be generic black (GAXA) in color and have, at most, a “K“ level (2-4 on
15、a 60 gloss meter) for gloss, unless otherwise specified on the engineering drawing or PDL. The color shall be uniform (no change in color less than Rating 5 of the Gray Scale, AATCC Evaluation Procedure 1/ISO 105-A02) along the entire length of the seal assembly, including molded or mitered corners
16、and splices. The surface shall be free of blisters, voids and any bloom unless otherwise specified on the engineering drawing. 3.5 PROCESS WINDOW DEFINITION The supplier shall perform a DOE for development of new materials and for continuous improvement of current materials, utilizing response surfa
17、ce analysis to determine the Process Window of the system. The variables to be included in the design are cure temperature (material and coating), conveyor speed, and coating flow. An initial screening experiment should be run to determine what level will generate a window which includes testing to
18、failure. This screening experiment should be reviewed with the Materials Engineer to set up the final DOE. Response attributes to the DOE should be based on the materials tested and should include, but not be limited to: ENGINEERING MATERIAL SPECIFICATION WSS-M9P9-C Controlled document at www.MATS C
19、opyright 2016, Ford Global Technologies, LLC Page 3 of 14 Coefficient of Friction Film Thickness (if coating is present) Resistance to Cleaning Agents Resistance to Crocking Abrasion Naptha Solvent Rub (if coating is present only) Compression Load Deflection (per legacy DY-0036) TABLE 1.0 TEST REQUI
20、REMENTS FOR SPECIFIC DYNAMIC SEAL TYPES Dynamic seal test requirements depend on their type, location and unique properties. Table 1.0 provides an overview of the test requirements in paragraphs 3.6 to 3.15 necessary for approval. All dynamic seal types must meet the requirements per paragraphs 3.1,
21、 3.2, 3.3, 3.4, 3.5, 3.16, 3.17. Note: Non-visible seals to the exterior and interior normal environments (closures closed) are not required to meet 3.7 Accelerated Weathering and 3.8 Aged Adhesion. 3.6 RESISTANCE PROPERTIES The following requirements shall be assessed on whole parts or sections of
22、seal assemblies and must include all materials and constructions found within the parts (molded corners, bright inserts, flock coating, etc.) Separate specimens are required for each test. The parts as received and after being subjected to the tests listed below shall conform to the following requir
23、ements as specified. (a) No evidence of color change less than Rating 4 of the Gray Scale (AATCC Evaluation Procedure 1/ISO 105-A02). (b) No cracking, chalking, wrinkling, crazing, iridescence, bloom, milkiness, separation, loss of adhesion (coating), or loss of embossment allowed (as defined in AST
24、M D1566). (c) No evidence of shrinkage or incompatibility between materials of construction. (Examples: coating to substrate, co-extruded materials, etc.) Dynamic Seal Type Location Tests Required Closure Mounted, Uncoated Body Mounted, Uncoated Trim Mounted, Uncoated Door, Hood, Lift-gate, Deck-lid
25、 Flange Cowl/Leaf Screen, Rocker, Cladding 3.6.1 - 3.6.9, 3.6.11 (3.6.4 for metal carrier only), 3.7, 3.10 3.15 Closure Mounted, Coated Body Mounted, Coated Trim Mounted, Coated Door, Hood, Lift-gate, Deck-lid Flange Cowl/Leaf Screen, Rocker, Cladding All. (3.6.4 for metal carrier only), Specific to
26、 coating: 3.6.8, 3.6.9, 3.6.10, 3.6.11, 3.8, 3.9 ENGINEERING MATERIAL SPECIFICATION WSS-M9P9-C Controlled document at www.MATS Copyright 2016, Ford Global Technologies, LLC Page 4 of 14 (d) Any successful attempt to separate the components of coated and/or composite parts must result in cohesive fai
27、lure only. Any adhesive failure will be cause for rejection. (e) For seals with metal carriers, no visible corrosion or blistering is permitted. (f) For applications using hot melt sealant: After exposure, the loss of pull-off effort shall not exceed 25% of the original requirement stated in the dyn
28、amic sealing SDS, legacy DY-0004. Record original and after exposure pull-off efforts. When a seal assembly includes windlace/pinch weld retention systems additional samples shall be assembled to metal panels simulating production installation. All samples must be conditioned for 1 h +/- 5 minutes a
29、t 23 +/- 2 C and 50% R.H. prior to all assessments, unless otherwise specified. 3.6.1 Humidity Exposure (a), (b), (c), (d), (e), (f) (ASTM D2247, 14 d, 38 +/- 2 C, 95% to 100% R.H 100 mm long specimen, horizontal exposure) Note: Requirement 3.8 requires adhesion testing after humidity exposure. 3.6.
30、2 Environmental Cycling Test (a), (b), (c), (d), (e), (f) (FLTM BQ 104-07, method 1, without CASS cabinet, 100 mm specimen, horizontal exposure) 4 cycles, each cycle shall consist of the following: 4 h at 100 +/- 2 C 4 h at 38 +/- 2 C, 95% to 100% R.H. 16 h at -40 +/- 2 C 4 h at 38 +/- 2 C, 95% to 1
31、00% R.H. 4 h at 100 +/- 2 C 16 h at -40 +/- 2 C Note: Requirement 3.8 requires adhesion testing after environmental cycling. 3.6.3 Cold Flexibility No cracks or breaks (FLTM BP 106-03,4 h at -40 +/- 2 C as examined with except carrier material, reference the unaided eye. ASTM D380 for apparatus) 3.6
32、.4 Laboratory Accelerated Cyclic Corrosion (Only for parts containing metal carriers) (Test Method 00.00-L-467, (formerly a CETP) 3.6.4.1 Closure Mounted Primary Seals or Must meet (e) Body Mounted Primary Seals, 9 weeks exposure. 3.6.4.2 Body Mounted Secondary Seals, Must meet (e) 6 weeks exposure.
33、 ENGINEERING MATERIAL SPECIFICATION WSS-M9P9-C Controlled document at www.MATS Copyright 2016, Ford Global Technologies, LLC Page 5 of 14 3.6.5 Ozone Resistance Rating 0 max (FLTM BP 101-01, Procedure B) No chalking or cracking visible at 2X magnification. 3.6.6 Heat Aging (ISO 188/ASTM D573) 3.6.6.
34、1 Short Term: 22 h at 80 +/- 2 C Change in length +/- 0.5% max, (a), (b), (f) (Seals with and without metal carrier), 100 mm long specimen, horizontal exposure For stand-alone dynamic seals that dont meet the above requirements, it is recommended that the dynamic seal(s) be tested simulating the pro
35、duction environment (Examples: sheetmetal flange, etc.). Note: Requirement 3.8 requires adhesion testing after short term heat aging. 3.6.6.2 Long Term: 1000 h at 80 +/- 2 C (Use different specimens from 3.6.6.1) Change in length +/- 1.0% max, (a), (b), (f) (Seals with and without metal carrier), 10
36、0 mm long specimen, horizontal exposure For stand-alone dynamic seals that dont meet the above requirements, it is recommended that the dynamic seal(s) be tested simulating the production environment (Examples: sheetmetal flange, etc.). Note: Requirement 3.8 requires adhesion testing after long term
37、 heat aging. 3.6.7 Paint Staining 3.6.7.1 Simulated Paint Repair Rating 4 min (AATCC Evaluation Procedure 1/ISO 105-A02, Prepare paint panels per WSS-M33J7-A1 para 3.4, for Catalyzed Low Bake Repair) Test Method: Expose assembly at 120 +/- 2 C for 1 h. Cool to 23 +/- 2 C then remove the clamp. Separ
38、ate the assembly by pulling apart rapidly by hand and rate the panel). Slight contact stain is permitted. 3.6.7.2 Contact and Migration Staining of Paint Rating 4 min (FLTM BP 153-01, Procedure A & B) No visible stain or change in surface appearance produced on the painted panel beyond the boundarie
39、s of the test specimen. 3.6.8 Fluid Resistance Rating 4 min (FLTM BI 168-01, Method B) Additional fluids to include: Rubber Lubricant (ESE-M99B144-B), and soap and water referenced in FLTM BI 113-01. ENGINEERING MATERIAL SPECIFICATION WSS-M9P9-C Controlled document at www.MATS Copyright 2016, Ford G
40、lobal Technologies, LLC Page 6 of 14 3.6.9 Resistance to Cleaning Agents Rating 4 min (FLTM BN 107-01, Procedure C, 9N load AATCC Evaluation Procedure 1/ISO 105-A02) Cover the abrasion head with a double thickness of cloth with the fill direction parallel to the direction of rubbing. Note: A fresh s
41、ample of cloth must be used for each test. Install a 150mm section of seal so that it is centered under the abrasion head. Clamp the baseplate to the bed of the crockmeter to prevent movement during the test. With the abrasion head resting on the seal, apply (to the cloth at the point where it conta
42、cts the seal) exactly 1 ml of the following: 1. Dry 2. Petroleum naphtha 3. Glass Cleaner 4. Deionized Water 5. 1:1 ratio of Isopropyl Alcohol: Water 6. All Purpose Cleaner 7. Armor All Cleaner A hypodermic syringe or pipette may be used for this purpose. Subject the coated seal to 10 complete rubbi
43、ng cycles (one cycle consists of one stroke of the abrasion head forward and back). The time elapsed from the application of the solvent to the completion of the required cycles shall be not more than 20 s. Remove the seal and examine for coating removal and color change using the AATCC gray scale.
44、3.6.10 Resistance to Crocking Abrasion (for coated seals) (FLTM BN 107-01, Part C, Dry and Wet) 3.6.10.1 Dense Rubber Seals No visible coating failure at 2X magnification glass after 500 cycles 3.6.10.2 Sponge Rubber Seals No visible coating failure at 2X magnification glass after 300 cycles 3.6.10.
45、3 Resistance to Soap and Water Crocking Abrasion The coating shall not be removed or show any adverse effects when rubbed 60 cycles, 9N load, with a cloth saturated with a 1 to 5 ratio of liquid soap (ESB-M1B9-A) to water. ENGINEERING MATERIAL SPECIFICATION WSS-M9P9-C Controlled document at www.MATS
46、 Copyright 2016, Ford Global Technologies, LLC Page 7 of 14 3.6.11 Abrasion Resistance Using a Vibration Test Rig (FLTM BP 119-01, Method B, 100 mm long specimen) Paint panel film build should be representative of the seal location in the vehicle (i.e. basecoat only for hood seals). Test Method: (Gr
47、it Solution) Apply 5 ml (1 tsp) of the grit solution at 0, 2500, 5000, and 6900 cycles. Examine sealing surface for color coat wear through every 5,000 cycles. If no failure occurs at 50,000 cycles, test to failure or 100,000 cycles. Document number of cycles at which the seal has worn through the c
48、olor coat. Requirement: (a) Dry (no grit solution): No visible wear-through on either the paint panel or the seal after 20,000 cycles. No transfer of black rubber onto the panel after 20,000 cycles. (b) After application of grit solution: No visible wear-through on either the paint panel or the seal
49、 after 50,000 cycles. No transfer of black rubber onto the panel after 50,000 cycles. Grit Solution: The grit solution is a mixture of dust, salt, and water. The amount of salt is equivalent to a 50% dilution of saturated salt water with fresh water. To prepare the mixture combine the following and mix completely. 65 g salt. 451 ml fresh water 13.5 g Arizona Test Dust (SAE Coarse ISO 12103-1, A4) or China Dust (FLTM BZ 106-01) based o
