1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2008 10 28 N-STATUS Replaced by WSS-M11P65-A M. Mehandru, FNA 2002 05 06 Revised Rev para 3.5, 3.6, 3.9 and 3.12 W. Scholz 1992 03 02 EP00E01076262000 Released KW conc. J. Schult Printed copies are uncontrol
2、led Page 1 of 6 Copyright 2008, Ford Global Technologies, Inc. TAPE, PERFORMANCE, PRESSURE SENSITIVE ADHESIVE, WSK-M11P51-A TWO SIDED, EXTERIOR, EMBLEM NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines performance requirements of adhesive foam tapes used for exterior automotive appli
3、cations. The tapes have two sides with two side pressure sensitive adhesive and are protected by either release paper or polymer liner. The tapes may be used in combination with a suitable primer which would be specified separately on the Engineering drawing. 2. APPLICATION This specification was re
4、leased originally to define adhesion performance requirements for exterior automotive emblem application. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to t
5、he Companys Quality System Requirements. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS IR spectra and thermograms established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra an
6、d thermograms that correspond to the reference standard when tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prio
7、r to testing and tested under the same conditions unless otherwise specified. ENGINEERING MATERIAL SPECIFICATION WSK-M11P51-A Page 2 of 6 Copyright 2008, Ford Global Technologies, Inc. 3.4 PREPARATION OF TEST SPECIMENS Test specimens shall be prepared from production emblems and painted steel panels
8、, prepared according to FLTM-BI 103-02, method B/2, using current approved production paint materials. If emblems are too small, test panels from original substrate may be used instead. The surface to be bonded shall be cleaned with isopropanol/water (1:1) and dry wiped prior to applying the tape. T
9、he tape shall be applied to the emblems sample surface with the liner intact. Test specimens shall be aged for 72 h at room temperature prior to testing unless otherwise specified. Usage of a primer shall be noted in the Initial Sample Report. 3.5 AGING CONDITIONS Expose test specimens per 3.4 to ea
10、ch of the following conditions before testing per para 3.6. 3.5.1 Humidity Aging 14 d at 38 +/- 2 C, 98 +/- 2 % RH 3.5.2 Heat aging 14 d at 90 +/- 2 C Reconditioning: 1 h at 23 +/- 2 C and 50 +/- 5 % RH 3.5.3 Paint Repair Oven 30 minutes at 120 +/- 2 C Reconditioning: 1 h at 23 +/- 2 C and 50 +/- 5
11、% RH 3.5.4 Environmental Cycling (FLTM BQ 104-07, Procedure 5) 3.5.5 Immersion: Wax/Dewaxing Fluid Use current production waxing and dewaxing compounds as follows: Immerse 1 minute in protective wax compound and condition for 72 h at 23 +/- 2 C. Remove wax coating by immersing 1 h 60 +/- 2 C into de
12、waxing compound. Allow to cool down to room temperature. ENGINEERING MATERIAL SPECIFICATION WSK-M11P51-A Page 3 of 6 Copyright 2008, Ford Global Technologies, Inc. 3.5.6 Immersion: Fuel C (ISO 1817, liquid 4, 1 h at 23 +/- 2 C) 3.5.7 Accelerated Weathering 2000 h (SAE J1960) 3.5.8 Florida Exposure 2
13、 years (FLTM BI 160-01, 5 deg south direct weathering) This applies to Initial Approval only. Initial approvals will be based on accelerated weathering results, pending Florida results for final approval. Note: In case of differences between the results of Florida exposure and accelerated weathering
14、, the Florida results shall take precedence. 3.6 ADHESION Adhesion shall be tested after aging per para 3.5. Tests shall be performed within 5 minutes after end of the exposure (except 3.5.8). Report type of failure (cohesive/adhesive failure of the tape as well as substrate failure) in the Initial
15、Sample Report. The figures required below are only valid if adhesion of tape to substrate is greater than the internal strength of the substrate material. Influence of substrate material to test results, e.g. plasticizer migration, shall not be reason for rejection of adhesive tape, if the tape meet
16、s all specification requirements on an inert substrate. These results must be confirmed in the initial sample report of the tape. 3.6.1 90 degree Peel Adhesion: Tape to Emblem (FLTM BU 112-02, Method A) No separation between tape and aluminum foil. Original Value, min 17 N/cm (72 h at 23 +/- 2 C) Mu
17、st be within +/- 10 % of initial sample After Aging, min 10 N/cm 3.6.1.1 Humidity per 3.5.1 3.6.1.2 Heat Storage per 3.5.2 ENGINEERING MATERIAL SPECIFICATION WSK-M11P51-A Page 4 of 6 Copyright 2008, Ford Global Technologies, Inc. 3.6.1.3 Paint Repair Oven per 3.5.3 3.6.1.4 Environmental C. per 3.5.4
18、 3.6.1.5 Wax/Dewaxing per 3.5.5 3.6.1.6 Fuel C Immersion per 3.5.6 3.6.1.7 Acc. Weathering per 3.5.7 3.6.1.8 Florida Weathering per 3.5.8 3.6.2 T-Block Adhesion: Tape to Painted Surface (FLTM BU 112-02, Method D) Original Value, min 50 N/cm2(72 h at 23 +/- 2 C) Must be within +/- 10 % of initial sam
19、ple After Aging, min 30 N/cm23.6.2.1 Humidity per 3.5.1 3.6.2.2 Heat Storage per 3.5.2 3.6.2.3 Paint Repair Oven per 3.5.3 3.6.2.4 Environmental C. per 3.5.4 3.6.2.5 Wax/Dewaxing per 3.5.5 3.6.2.6 Fuel C Immersion per 3.5.6 3.6.2.7 Acc. Weathering per 3.5.7 3.6.2.8 Florida Weathering per 3.5.8 3.7 S
20、TATIC SHEAR: Tape to Painted Surface (FLTM BU 101-06, Method B) At 70 C, 100 h testing time 500 g At 120 C, 30 minutes testing time 200 g ENGINEERING MATERIAL SPECIFICATION WSK-M11P51-A Page 5 of 6 Copyright 2008, Ford Global Technologies, Inc. 3.8 COLD ADHESION TEST No delamination (FLTM BU 109-02
21、after 4 h at - 40 +/- 1 C) 3.9 VISUAL INSPECTION There shall be no staining, curling or any other failures after aging per para 3.5. 3.10 STORAGE AND SHIPPING STABILITY Emblems with the tape applied shall be stored for 3 months at temperatures between 5 and 32 C as well as for 3 weeks at 70 C. After
22、 the storage, the tape shall meet all requirements of this specification. 3.11 LINER REMOVAL, max 6.0 N/cm ASTM D 1000, except apply the unlined adhesive side of the tape to a clean metal panel with light finger contact and no added roller weight. Measure the force required to peel the liner from th
23、e tape. 3.12 MIGRATION STAINING No staining of light colored paints after aging per para 3.5. 3.13 INITIAL ADHESION The initial adhesion of the adhesive tape immediately after bonding shall be sufficient that the mounted part can withstand normal handling without damage. 3.14 SUPPLIERS RESPONSIBILIT
24、Y All materials supplied to this specification 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 under this specification, whether or not such changes affect the materials ability to m
25、eet the specification requirements, the Supplier shall notify the affected Purchasing, and Materials Engineering activities (with reasons) of the proposed changes. Upon notification of the Company, further instructions will be provided. Note: Suppliers should be prepared to provide test data and sam
26、ples demonstrating compliance to this specification, if requested. Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in Restricted Substance Management Standard WSS-M99P9999-A1. ENGINEERING MATERIAL
27、 SPECIFICATION WSK-M11P51-A Page 6 of 6 Copyright 2008, Ford Global Technologies, Inc. 4. APPROVAL OF MATERIALS Materials defined by this specification for direct supply to the Company must have prior approval. Certain materials subcontracted by part suppliers may also require prior approval. These
28、include materials critical to the Companys business for regulatory, safety, environmental or compatibility requirements or contractual agreements. Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Materials Engineering activity. Up
29、on request, 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 this specification. 5. GENERAL INFORMATION The information given below is prov
30、ided for clarification and assistance in meeting the requirements of this specification. 5.1 RECOMMENDATIONS FOR MOUNTING . Only apply tape to absolutely clean and dry surface. . Mating surface should be matched (contoured or parallel) to ensure 100 % contact of the bond area. . Once tape is applied
31、 to part and has been bonded and for any reason removed, it shall not be reused. . If the adhesive surface of the tape becomes soiled, the tape-backed part shall not be used unless tape is replaced. . The adhesive side of the tape shall not be touched or handled once the release liner has been removed.
