1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 08 13 N-STATUS Replaced by WSS-M11P65-A M. Mehandru 2005 09 27 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.10, 3.11, 4 1995 08 07 Activated W. Curtiss, G. Molnar Printed copies are uncontrolled Copyright 2007, Ford Global Technologies,
2、 LLC Page 1 of 7 TAPE, URETHANE FOAM CARRIER, TWO SIDE COATED, WSB-M3G89-D PRESSURE SENSITIVE, INTERIOR AND EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a polyurethane foam tape coated on both sides with an acrylic, pressure sensitive adhesive and pro
3、tected with polyethylene or copolymer release liners. 2. APPLICATION This material was released originally for material used to retain interior and exterior trim parts including script ornaments, emblems, moldings, bumper fascia inserts, etc. Moldings may be assembled to the vehicle when ambient pla
4、nt conditions are above 16 C. Body side applications require alcohol wipe prior to attaching any moldings. The bonding surface shall be free from contaminates prior to attaching any parts. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must c
5、onform 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 Tape Thickness, mm +/- 0.25 mm (ASTM D 1667) 3.5.2 Density The density tolerance of foam substrate without adhesive
6、 shall be +/- 15%, based on the recorded density of the original approved production sample. Ref. para 5.6. 3.5.3 Tensile Strength, min (ASTM D 412, Die “C“) As Received 600 kPa Aged 70 h at 100 C 600 kPa ENGINEERING MATERIAL SPECIFICATIONWSB-M3G89-D Printed copies are uncontrolled Copyright 2007, F
7、ord Global Technologies, LLC Page 2 of 7 3.5.4 Elongation, min (ASTM D 412, Die “C“) As Received 150% Aged 70 h at 100 C 150% 3.5.5 Water Absorption, max 10% Form a circular ring of tape approximately 25 x 75 mm or equivalent, to obtain an exposure area of approximately 3900 mm2. A minimum contact a
8、rea 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 gird is used to retain the tape under water. After 22 h immersion carefully remove the tape, shake excess water off, remove the remaining surface water with air at 70 - 100 k
9、Pa 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 surfaces during this test procedure. 3.6 TAPE ADHESION REQUIREMENTS 3.6.1 Peel Adhesion, min (FLTM BU 1
10、12-02, 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 environmental exposure and tested between 1 and 4 hours after removal, unless otherwise noted. Apply a 3
11、0 micrometer polyester film to the unlined adhesive side of the tape before testing and determine adhesion to stainless steel, and current exterior body quality enameled panels prepared per para 5.1 and emblem/bodyside molding substrate as identified by Materials Engineering. Expose four samples to
12、each of the following conditions: Room Temperature Aging, min (Do not precondition for 72 h) 20 minutes 0.5 N/mm 72 h 0.7 N/mm Heat Aging, min 1.6 N/mm 14 days at 90 +/- 2 C Humidity, min 1.3 N/mm 14 days at 38 C and 98 +/- 2% RH ENGINEERING MATERIAL SPECIFICATIONWSB-M3G89-D Printed copies are uncon
13、trolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 7 Cycle Test, min 1.3 N/mm (5 cycles consisting of:) 8 h at 90 +/- 2 C 16 h at -40 +/- 2 C 8 h at 38 +/- 2 C and 98 +/- 2% RH condensing humidity 16 h at -40 +/- 2 C 3.6.2 Shear Adhesion, min Prepare 645 mm2overlap shear test specimen u
14、sing 1 x 3 in (25 x 75 mm) test panels of enamel/anodized steel. Prepare 12 samples and condition for 24 h at 23 C. Use 3 samples of the “as received“ shear adhesion and 3 samples for each of the environments listed below: As Received: 410 kPa Heat Aging, min 410 kPa 14 days at 88 +/- 2 C Humidity A
15、ging, min 240 kPa 14 days at 38 C and 98 +/- 2% RH Cycle Test, min 310 kPa (10 cycles consisting of:) 4 h at -30 C 4 h at 90 C 16 h at 38 C and 98 +/- 2% RH Four hours after completion of the exposures, measure shear adhesion in a testing machine having a jaw separation rate of 12.7 mm/minute. All s
16、hear adhesion tests are conducted at 23 +/- 2 C. 3.6.3 Liner Removal, max (ASTM D 1000 with exceptions below) As Received 0.5 N/mm 1 h at 54 C 0.5 N/mm ASTM D 1000, except apply the unlined adhesive side of the tape to an anodized aluminum panel with light finger contact and no added roller weight.
17、Measure the force required to peel the liner from the tape. ENGINEERING MATERIAL SPECIFICATIONWSB-M3G89-D Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 4 of 7 3.6.4 Holding Power, max 1.0 mm creep (FLTM BU 101-06, Method B) At 70 C (1000 g weight) At 120 C for 30
18、 min (250 g weight) Prepare 3 enamel/anodized aluminum 645 mm2overlap shear test specimens. After conditioning for 24 h, hang 1 test specimen vertically at each specified temperature. Gently attach weights, as specified, to each specimen. All bonded assemblies must support the specified weight for t
19、he specified time. 3.7 PERFORMANCE REQUIREMENTS FOR CHEMICAL OR ALUMINUM BARRIER ASSEMBLIES 3.7.1 Adhesion Strength, N/mm width, min (FLTM BU 112-02, Method C) The samples shall meet the adhesion requirements as received and after sample exposure conditions. Samples must be preconditioned for 72 h a
20、t 23 +/- 2 C prior to environmental exposure and tested between 1 and 4 h after removal from exposure conditions, unless otherwise noted. Expose duplicate samples to each of the following conditions: Breakaway Continuous 20 minutes 6.3 1.7 72 h 7.7 1.9 Heat Aging, min 7.0 2.2 14 days at 90 +/- 2 C H
21、umidity, min 6.0 2.0 14 days at 38 +/- 2 C and 98 +/- 2% RH condensing Water Immersion, min 6.3 1.7 (FLTM BI 104-01, 240 h) Cycle Test, min 5.6 1.8 5 cycles consisting of: 8 h at 90 +/- 2 C 16 h at -40 +/- 2 C 8 h at 38 +/- 2 C and 98 +/- 2% RH 16 h at -40 +/- 2 C ENGINEERING MATERIAL SPECIFICATIONW
22、SB-M3G89-D Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 5 of 7 Breakaway Continuous Paint Repair Oven, min 7.0 2.1 (30 minutes at 120 C) Fuel Resistance, min Unleaded Gasoline 5.3 1.8 Diesel fuel 5.3 1.8 Gasohol 5.3 1.8 Test Method: Immerse panels with test bar
23、(2 per fluid) for 1 h and pull immediately after removal. Weathering Resistance Weatherometer 7.0 1.8 (FLTM BO 101-01, 1500 hours) Florida Exposure 7.0 1.8 (SAE J 1976, 2 years) Arizona Exposure 7.0 1.8 (SAE J 1976, 2 years) 3.7.2 Assembly Resistance Requirements The following requirements shall be
24、assessed on sections which are primed or have an 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 e
25、dges, blistering, separation, or loss of adhesion. b) In addition, there shall be no evidence of shrinkage of compatibility between materials of the construction. c) Any adhesive failure will be cause for rejection. Sample Exposure Conditions: Cold Shock Resistance Prepare three 75 mm test bars per
26、para 5.2. Bond test bars to test panels except mount as in Figure 1 to current exterior quality enameled steel panels. ENGINEERING MATERIAL SPECIFICATIONWSB-M3G89-D Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 6 of 7 Condition the bonded assembly for 72 h at 23
27、C. Place the panel and the slamming fixture described in FLTM BV 109-02 in a cold box maintained at -40 C for 4 hours. Insert the 300 mm side of panel vertically in the slamming fixture so that test bars face out. Allow the panel to fall from a horizontal position 10 times in rapid succession. Obser
28、ve whether any of the test bars have fallen off. 3.8 STORAGE STABILITY The unwind, pull, and ease of the liner backing removal measured by hand peel examination shall not change appreciable after 12 months storage at temperatures between 32 - 48 C. 3.9 FUNCTIONAL APPROVAL Materials being evaluated f
29、or approval to this specification shall be subjected to a production trial. Functional trial results must be approved by the affected assembly operation and Design Engineering. Results shall be made available to Materials Engineering prior to material approval and release. 5. GENERAL INFORMATION The
30、 information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 MATERIAL REFERENCES FOR TEST PANELS 5.1.1 Anodized Aluminum - 0.013 mm thick - Anodized Coating per ESB-M4P6. 5.1.2 Enameled Steel - Current paints used for specification deve
31、lopment prepared as required in each individual paint specification, para 3.3: ESB-M33J3 or equivalent Tape application to substrates not specified herein is permitted provided all specification requirements are met. 5.2 TEST BAR PREPARATION FOR PERFORMANCE REQUIREMENTS (Primer) (Test bars described
32、 in FLTM BU 112-02, Method C) Apply primer as recommended by tape supplier or test bar supplier to the 12.7 mm side of the test bar. Allow 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. ENGINEERING MATERIAL
33、 SPECIFICATIONWSB-M3G89-D Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 7 of 7 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 50/50 solution of distilled w
34、ater 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 5.4.2 Mating surfaced should be matched (contoured or parallel) to
35、insure 100% contact of the bond area. 5.4.3 For maximum adhesion, tape should be applied to freshly painted surfaces. The surface shall be wiped with 100% isopropyl alcohol. 5.4.4 When tape is applied to part prior to assembly, the part shall not be subjected to a paint and bake cycle. 5.4.5 Once pr
36、essure sensitive tape-backed ornament has been bonded, and for any reason removed (in-plant pull test), it shall not be reused. 5.4.6 If the adhesive surface of the pressure sensitive tape becomes soiled, the pressure sensitive tape-backed ornament should not be used. 5.4.7 The adhesive side of tape, shall not be touched or handled, once release paper has been removed. 5.5 COLOR - Originally Released Black 5.6 DENSITY - Originally Released 480 +/- 72 kg/m3
