1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 08 13 N-STATUS Replaced by WSS-M11P65-A2 M. Mehandru 2005 10 19 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.10, 3.11, 4 1991 02 19 Released NB00E10118943000 W. Curtiss, E. Rezendes, M. Perchard Printed copies are uncontrolled Copyright
2、 2007, Ford Global Technologies, LLC Page 1 of 7 TAPE, ACRYLIC CARRIER, TWO SIDE COATED, WSB-M3G138-B PRESSURE SENSITIVE, INTERIOR AND EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an acrylic tape coated on both sides with an acrylic, pressure sensitiv
3、e adhesive and protected with polyethylene or polyethylene polypropylene copolymer release liners. The tape carrier may be foam or non-foam type. 2. APPLICATION This material was released originally for material used to retain exterior bodyside moldings. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR
4、 PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 TAPE DIMENSIONS As specified on the Engineering Drawing 3.5 PHYSICAL TAPE REQUIREMENTS 3.5.1 Thickness (ASTM D 412, 2 mm diameter foot, 57 g w
5、t) Tape plus Adhesive 1.14 +/- 0.15 mm 3.5.2 Density The density tolerance for any one supplier shall be +/- 12%, based on the recorded density of their original approved production sample. 3.5.3 Tensile Strength, min (ASTM D 412, Die “C“) As Received 550 kPa Aged 70 h at 100 C 550 kPa 3.5.4 Elongat
6、ion, min (ASTM D 412, Die “C“) As Received 600% Aged 70 h at 100 C 600% ENGINEERING MATERIAL SPECIFICATIONWSB-M3G138-B Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 7 3.5.5 Water Absorption, max 3% Test Method: Form a circular ring of tape approximately 25 x
7、 75 mm or equivalent, to obtain an exposure area of approximately 3900 mm2. A minimum contact area of the ends is used to hold the tape in a ring form. The ring is weighed and immersed in water at 23 C. A stainless steel grid is used to retain the tape under water. After 22 h immersion, carefully re
8、move the tape, shake excess water off, remove the remaining surface water with air at 70 - 100 kPa, and weigh immediately. Calculate the average of 3 samples as a percent of the original weight for water absorption. Exercise care to minimize contact with the pressure sensitive adhesive coated surfac
9、es during this test procedure. 3.6 TAPE ADHESION REQUIREMENTS 3.6.1 Peel Adhesion, min (FLTM BU 112-02, Method A) The samples shall meet the adhesion requirements as received and after environmental aging conditions listed below. Samples must be preconditioned for 72 h at 23 +/- 2 C prior to environ
10、mental exposure and tested between 1 and 4 hours after removal from exposure conditions, unless otherwise noted. All values expressed in N/mm width. Apply a 30 micrometre thick polyester film to the unlined adhesive side of the tape before testing and determine adhesion to anodized aluminum, stainle
11、ss steel, chromium plating, and current exterior body quality enameled panels prepared per para 5.1. Expose four samples to each of the following conditions: Room Temperature Aging, min (Do not precondition for 72 h) 1 h 1.1 72 h 1.3 Heat Aging, min 2 weeks at 88 +/- 2 C 1.3 Humidity, min 3 days at
12、38 C and 98 +/- 2% R.H. 1.3 2 weeks at 38 C and 98 +/- 2% R.H. 1.3 Water Immersion, min (FLTM BI 104-01) 240 hours 1.3 ENGINEERING MATERIAL SPECIFICATIONWSB-M3G138-B Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 7 Cycle Test, min (5 cycles consisting of:) 8
13、h at 90 +/- 2 C 1.3 16 h at -40 +/- 2 C 8 h at 38 +/- 2 C and 98%/- 2% R.H. 16 h at -40 +/- 2 C 3.6.2 Shear Adhesion, min (FLTM BU 101-06, Method A) As Received: Enamel/Enamel 200 kPa Enamel/Anodized Aluminum 240 kPa Painted RIM Panels/Painted Panels RIM 140 kPa Prepare three 645 mm2overlap shear te
14、st specimen with each of the above material combinations and age for 24 h. 3.6.3 Liner Removal, max (ASTM D 1000 with exceptions below) As Received 1.0 N/mm 1 h at 54 C 1.0 N/mm ASTM D 1000, except apply the unlined adhesive side of the tape to a clean metal panel with light finger contact and no ad
15、ded roller weight. Measure the force required to peel the liner from the tape. 3.6.4 Holding Power, min (FLTM BU 101-06, Method B) At 23 C 100 h At 70 C 100 h Prepare 2 enamel/enamel plate or enamel/anodized aluminum 645 mm2overlap shear test specimens. After conditioning for 24 h, hang 1 test speci
16、men vertically at 23 C and one at 70 C. Gently attach 1000 g weights to both specimens. Both bonded assemblies must support 1000 g weights for the specified time. 3.6.5 Heat Resistance, max displacement 1.0 mm Prepare 1 enamel/enamel plate or enamel/anodized aluminum 645 m2overlap shear test specime
17、n as described in para 3.6.4. After conditioning for 1 h at 23 C, attach a 230 g weight to one end of the test specimen and hang it vertically in a mechanical convection oven at 120 C for 30 minutes. Allow the specimen to cool to 23 C and determine whether any displacement from the original bonded p
18、osition has occurred. ENGINEERING MATERIAL SPECIFICATIONWSB-M3G138-B Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 4 of 7 3.7 PERFORMANCE REQUIREMENTS FOR CHEMICAL OR ALUMINUM BARRIER ASSEMBLIES 3.7.1 Adhesion Strength, min (FLTM BU 112-02, Method C) The samples
19、shall meet the adhesion requirements as received and after sample exposure conditions. Samples must be preconditioned for 72 h at 23 +/- 2 C prior to environmental exposure and tested between 1 and 4 hours after removal from exposure conditions, unless otherwise noted. All values expressed in N/mm w
20、idth. Expose duplicate samples to each of the following conditions: Room Temperature Aging, min (Do not precondition for 72 h) Breakaway Continuous 1 h 4.6 1.1 72 h 6.0 2.1 Heat Aging, min 8.8 3.5 2 weeks at 90 +/- 2 C Humidity, min 6.0 2.1 2 weeks at 38 +/- 2 C and 98 +/- 2% R.H. Water Immersion, m
21、in 6.0 2.1 (FLTM BI 104-01, 240 h) Salt Spray, min 6.0 2.1 (ASTM B 117, 500 h) Cycle Test, min 8.8 3.5 5 cycles consisting of: 8 h at 90 +/- 2 C 16 h at -40 +/- 2 C 8 hours at 38 +/- 2 C and 98 +/- 2% R.H. 16 h at -40 +/- 2 C Paint Repair Oven, min 7.0 2.8 (30 minutes at 120 C) Fuel Resistance, min
22、Unleaded Gasoline 7.0 2.1 Diesel Fuel 5.3 1.8 Gasohol 5.3 1.8 Test Method: Immerse panels with test bar (2 per fluid) for 1 h and pull immediately after removal. ENGINEERING MATERIAL SPECIFICATIONWSB-M3G138-B Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 5 of 7 B
23、reakaway Continuous Weathering Resistance, min 7.0 2.8 (FLTM BO 101-01, 2000 h) Florida Exposure, min 7.0 2.8 (SAE J1976, 2 years. This exposure applies to initial source approvals only) Florida Exposure, min 7.0 2.8 (SAE J1976, 3 years. This requirement will be effective from the 1994 model year) A
24、rizona Exposure, min 7.0 2.8 (SAE J1976, 2 years. This exposure applies to initial source approvals only) Arizona Exposure, min 7.0 2.8 (SAE J1976, 3 years. This requirement will be effective from the 1994 model year. 3.7.2 Assembly Resistance Requirements The following requirements shall be assesse
25、d on sections with the chemical or aluminum barrier: Test bar assemblies are to be bonded to test panels per FLTM BU 112-02, Method C. The parts as received and after being subjected to the exposures listed below shall conform to the following requirements: a) No cracking, curling of edges, blisteri
26、ng, separation, or loss of adhesion. b) In addition, there shall be no evidence of shrinkage or incompatibility between materials of the construction. c) Any adhesive failure will be cause for rejection. Sample Exposure Conditions: Thermal Shock (FLTM BI 107-05) 4 h water immersion at 32 +/- 1 C 4 h
27、 at -40 +/- 2 C Direct steam blast 15 s ENGINEERING MATERIAL SPECIFICATIONWSB-M3G138-B Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 6 of 7 Impact Strength, Gardner, min (FLTM BV 101-01) Normal (23 +/- 2 C) 1.1 J Low Temperature (-40 +/- 2 C) 0.57 J Cold Shock Re
28、sistance at -30 +/- 1 C (FLTM BU 109-02) As received low temperature, tested at -30 +/- 1 C Aged 2000 h weatherometer per 3.7.1, tested at -30 +/- 1 C Aged 2 years Florida and Arizona per 3.7.1, tested at -30 +/- 1 C 3.8 STORAGE STABILITY The unwind, pull, and ease of the liner backing removal measu
29、red by hand peel examination shall not change appreciably after 12 months storage at temperature between 32 - 48 C. 3.9 FUNCTIONAL APPROVAL Materials being evaluated for approval to this specification shall be subjected to a production trial. Functional trial results must be approved by the affected
30、 assembly operation and Design Engineering. Results shall be made available to Materials Engineering prior to material approval and release. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 MATERIAL
31、 REFERENCES FOR TEST PANELS Anodized Aluminum - ESB-M2A34 Anodized Coating per ESB-M4P6. Enameled Steel - Current paints used for specification development prepared as required in each individual paint specification, para 3.3: ESB-M32J120-A1/A2 ESB-M33J100-A/A2 ESB-M33J3-A1/A5 ESB-M36J1-A1/A2 and A3
32、 RIM Panels - Current paints used for specification development prepared per ESB-M2J121-B, para 3.3: ESB-M6J123-B1 ESB-M2J121-B ESB-M2J218-A1/A2 Tape application to substrates not specified herein is permitted provided all specification requirements are met. ENGINEERING MATERIAL SPECIFICATIONWSB-M3G
33、138-B Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 7 of 7 5.2 TEST BAR PREPARATION FOR PERFORMANCE REQUIREMENTS (Chemical Barrier) (Test bars described in FLTM BU 112-02, Method C) Apply primer (Norton Tite-R-Bond, No. 2287) to the 12.7 mm side of test bar. Allo
34、w to dry for 5 minutes. Apply the non-liner side of tape to primer coated side of the test bar. Roll as described in FLTM BU 112-02, Method C. 5.3 TEST BAR PREPARATION FOR PERFORMANCE REQUIREMENTS (Aluminum Barrier) (Test bars described in FLTM BU 112-02, Method C) Clean the aluminum surface with 50
35、/50 solution of distilled water and isopropyl alcohol to the 12.7 mm side of the test bar. Apply the non-liner side of the tape to the aluminum side of the test bar. Roll as described. 5.4 PRODUCTION APPLICATION METHODS 5.4.1 Application Temperature, min 16 C Mating surfaces should be matched (conto
36、ured or parallel) to insure 100% contact of the bond area. For maximum adhesion, tape should be applied to freshly painted surfaces. When tape is applied to part prior to assembly, the part shall not be subjected to a paint and bake cycle. Once a pressure sensitive tape-backed ornament has been bond
37、ed, and for any reason removed (in-plant pull test), it shall not be reused. If the adhesive surface of the pressure sensitive tape becomes soiled, the pressure sensitive tape-backed ornament should not be used. The adhesive side of tape, shall not be touched or handled, once release paper has been removed. 5.5 COLOR - Originally Released White 5.6 DENSITY - Originally Released 680 +/- 80 Kg/m3
