1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2013 07 26 N Status Replaced by WSK-M3G178-B1/B2/B3/B4 L. Shen, APA 2006 01 20 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7, 4 1990 12 03 Revised EP00E01031542000 Concurred L. A. Schmalz K. Gerhards 1990 06 01 Released EP00E010315360
2、00 K. Gerhards Controlled document at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 5 TAPE, DECORATIVE, PRESSURE SENSITIVE, EXTERIOR WSK-M3G178-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by this specification are decorative tapes used for exterior applications,
3、 transparent or pigmented, which may be silk screen printed on the face side and may be covered with a durable clear protective coating and backed with a pressure sensitive adhesive which is protected by a release paper. 2. APPLICATION This specification was released originally for material used for
4、 exterior decorative applications. 3. REQUIREMENTS All testing to be done on finished production parts (i.e., film to be used to design intent and application on production substrate/paint). 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the
5、Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 FILM PROPERTIES 3.4.1 Appearance (FLTM BI 109-01) The color and surface finish shall match the approved Design Center master sample, or shall be as specified on the engineering drawing. 3.4.2 Thickness 0.09 +/- 0.02 or (AS
6、TM D 1000) as specified on engineering drawing 3.4.3 Width As specified on (ASTM D 1000) engineering drawing 3.4.4 Gloss, min As specified on (FLTM BI 110-01, 60 engineering drawing glossmeter) Tolerances Low gloss ( 30% reading) +/- 7 units 3.4.5 Print/Coating Adhesion (FLTM BI 106-01, Method C) Th
7、ere shall be no separation of printed colors/coatings from the base film. ENGINEERING MATERIAL SPECIFICATION WSK-M3G178-A Copyright 2013, Ford Global Technologies, LLC Page 2 of 5 3.4.6 Tensile Strength, min 7.0 MPa (ASTM D 882, Method A, 25 x 150 mm specimen, bench marks distance - 50 mm, jaw separ
8、ation - 100 mm, 50 mm/minute test speed) 3.4.6.1 Elongation, min 35% 3.4.7 180 Peel Adhesion, min (ASTM D 1000, except determine adhesion to current production exterior paint systems, evaluate plot according to ISO 6133 Figure 1) Note: Assemblies shall be conditioned for 24 h at standard conditions
9、prior to exposure. Testing shall be conducted 1 h after removal from the conditioning environment; after water immersion, 4 h recovery is permitted. 3.4.7.1 As Received 450 N/m 3.4.7.2 After 48 h at RT 700 N/m 3.4.7.3 Aged Test Method: Expose two samples to each of the following conditions: 168 h at
10、 80 +/- 2 C 700 N/m 240 h water immersion 550 N/m (FLTM BI 104-01) After 24 h reconditioning 700 N/m EAO NAAO Cycle Exposure: 4 cycles 10 cycles 700 N/m 700 N/m 4 h at 80 +/- 2 C 4 h at 38 +/- 2 C and 95 - 100% RH, 16 h at -40 +/- 2 C * Run five cycles, allow to rest at standard conditions for 48 h,
11、 run five additional cycles. Heat Resistance 700 N/m Shall withstand a simulated paint repair bake (30 minutes at 120 +/- 2 C) after 2 h conditioning without evidence of blistering, checking, cracking, or shrinkage. 3.4.7.4 Cold Adhesion, min 210 N/m (ASTM D 1000, except use a test fixture capable o
12、f maintaining a 90 peel during the test.) ENGINEERING MATERIAL SPECIFICATION WSK-M3G178-A Copyright 2013, Ford Global Technologies, LLC Page 3 of 5 Test Method: Apply samples to substrate/paint and condition 20 minutes at 23 +/- 2 C. Expose assembly at 10 C for 10 minutes. Conduct peel adhesion at 1
13、0 C. Note: No value shall be below 150 N/m at any data point, (no zipping). 3.4.8 Shrinkage, max 0.5% No evidence of cracking or color change after exposure in a mechanical convection oven for 30 minutes at 120 +/- 2 C. The test shall be conducted 2 h after application of a 25 x 250 mm strip of the
14、material to a test panel. This test shall be conducted in both machine and cross-machine directions. 3.5 RESISTANCE PROPERTIES 3.5.1 Preparation of Test Panels Except where otherwise noted, resistance property tests shall be conducted using steel panels 75 x 150 mm minimum freshly painted with curre
15、nt production enamels per FLTM BI 133-02, Method C. The test panels shall be wiped with 50/50 volume percent of isopropanol/water and dry wiped prior to applying the film. Peel off the release paper from the film in a smooth, continuous motion (do not pull the film from the paper) and apply to the t
16、est panel. The film shall cover the face of the test panel allowing a 3.2 - 6.4 mm border on one side and on the top and bottom of the panel. The film shall be wrapped approximately 13 mm around the remaining edge of the panel. Test panels, with applied film, shall be conditioned at standard conditi
17、ons for 24 h prior to starting the tests. Note: NAAO will use wet application of decorative films at their discretion. 3.5.2 Water Resistance 240 h (FLTM BI 104-01) No blistering, permanent stain, change of color or gloss. In addition, there shall be no separation of printed colors/coatings from the
18、 base film as defined in para 3.4.5. 3.5.3 Resistance to Water and Soap Spotting (FLTM BI 113-01, except omit colorimeter evaluation) No blistering, permanent stain, change of color or gloss. In addition, there shall be no separation of printed colors/coatings from the base film as defined in para 3
19、.4.5. 3.5.4 Resistance to Acid Spotting (FLTM BI 113-02, except omit colorimeter evaluation) No blistering, permanent stain, change of color or gloss. In addition, there shall be no separation of printed colors/coatings from the base film as defined in para 3.4.5. ENGINEERING MATERIAL SPECIFICATION
20、WSK-M3G178-A Copyright 2013, Ford Global Technologies, LLC Page 4 of 5 3.5.5 Gasoline Resistance (FLTM BO 101-05) There shall be no softening, dulling, color change, or permanent stain. In addition there shall be no lifting of tape edges from the substrate. 3.5.6 Salt Spray Resistance (FLTM BI 103-0
21、1, 240 h) No blistering, permanent stain, change of color or gloss. In addition, there shall be no separation of printed colors/coatings from the base film as defined in para 3.4.5. 3.5.7 Abrasion (FLTM BN 108-02, 500 cycles, CS-10 wheels, 500 g load) Mass Pigmented Tapes 500 cycles Printed Tapes 50
22、0 cycles EAO - without Clearcoat 200 cycles No evidence of loss of pattern or wear-through is permitted in the abraded area. The substrate used for running the test will be painted steel panels unless otherwise specified. 3.5.8 Migration and Adhesive Staining (FLTM BP 153-01, 25 x 50 x 2.0 +/- 0.2 m
23、m specimen) No visible stain or change in surface appearance produced on the painted panel beyond the boundaries of the test specimen. 3.5.9 Pressurized Water Resistance (EAO only) (FLTM BO 160-04, Method B) There shall be no lifting of tape edges from the substrate. 3.5.10 Storage Stability of Tape
24、/Liner 3.5.10.1 180 Peel Adhesion, min 447 N/m (ASTM D 1000, except on current production paint/substrate. 20 minutes at 23 +/- 2 C after storage at 3 days at 48 C, average of 3 samples) 3.5.10.2 Elongation, min 20% (ASTM D 882, Method A, after storage for 3 days at 48 C, 25 x 150 mm sample, 50 mm d
25、istance bench marks, initial jaw separation at 100 mm, pulling speed 300 mm/minute) ENGINEERING MATERIAL SPECIFICATION WSK-M3G178-A Copyright 2013, Ford Global Technologies, LLC Page 5 of 5 3.5.11 Weathering Resistance After exposure in accordance with 3.5.11.1, 3.5.11.2 and 3.5.11.3, the material s
26、hall show no color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). Materials shall not exhibit loss of adhesion (test according to para 3.4.8.3) after exposure according to para 3.5.11.1. In addition, there shall be no cracking, crazing, blister
27、ing, peeling or other deterioration. Chalking or a loss of gloss (not to exceed 15%) will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and water (ratio 5:95 by volume). Washing to be used on Florida and Arizona exposures only. 3.5.11.1 2000 h Xenon Arc
28、 Rating 4 (SAE J1960) 3.5.11.2 12 months Florida EAO Rating 4 24 months Florida NAAO Rating 4 (SAE J1976, Procedure A) 3.5.11.3 12 months Arizona EAO Rating 4 24 months Arizona NAAO Rating 4 (SAE J1976, Procedure A) 3.5.12 Paintable Pre-mask When specified on (NAAO only) Engineering Drawing Shall withstand a simulated paint bake (30 minutes at 150 +/- 2 C) without evidence of blistering, checking, cracking, loss of adhesion, shrinkage, or loss of glass after removing mask. Mask shall be removed immediately after panel recovers to 23 +/- 2 C and 50 +/- 5% relative humidity.
