1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 1 2012 11 08 Update See Summary of Revisions M. Jones, FOE 2003 08 07 Activated L.A. Schmalz, NA Controlled document at www.MATS Copyright 2012, Ford Global Technologies, Inc. Page 1 of 8 TAPE, DECORATIVE, PRESSURE SENSITIVE, EXTERIOR, W
2、SK-M3G178-B1 LOW UV, VERTICAL APPLICATIONS (Below Greenhouse) TAPE, DECORATIVE, PRESSURE SENSITIVE, EXTERIOR, WSK-M3G178-B2 LOW UV, CHIP RESISTANT, VERITICAL APPLICATIONS (Below Greenhouse) TAPE, DECORATIVE, PRESSURE SENSITIVE, EXTERIOR, WSK-M3G178-B3 HIGH UV, HORIZONTAL, GREENHOUSE APPLICATIONS TAP
3、E, DECORATIVE, PRESSURE SENSITIVE, EXTERIOR, WSK-M3G178-B4 HIGH UV, CHIP RESISTANT, HORIZONTAL, GREENHOUSE APPLICATIONS 1. SCOPE The materials defined by these specifications are decorative tapes used for exterior applications, transparent or pigmented, which may be printed on the face side and may
4、be covered with a durable clear protective coating and backed with a pressure sensitive adhesive which is protected by a release paper. Note: To differentiate between locations requiring chip resistant testing, a CAE model or equivalent will be used to determine chip performance based on vehicle des
5、ign. Ford engineers will determine areas of high and low chip probability. 2. APPLICATION These specifications were released originally for material used for exterior decorative applications. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers mus
6、t conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 Materials supplied to this specification must conform to all current Ford Motor Company System Design Specifications for Tape, Decorative, Pressure Sensitive and Exterior Applications. 3.1.2 Supplier sha
7、ll define the process window for materials by performing a Design of Experiment (DOE) that must include the variables of minimum application temperature, application method and post application conditioning. Responses to D.O.E. must, as a minimum, include all the adhesion requirements of this specif
8、ication and any other tests in this specification designated by Ford Materials Engineering. 3.1.3 All testing to be done on finished production parts (i.e., film to be used to design intent and application on production substrate/paint). ENGINEERING MATERIAL SPECIFICATION WSK-M3G178-B1/B4 Copyright
9、2012, Ford Global Technologies, Inc. Page 2 of 8 3.1.4 New technologies to be approved using multiple tape colors as determined by Ford material engineers. 3.2 FILM PROPERTIES No blistering, permanent stain, change of color or gloss. In addition, no visible stain or change in surface appearance prod
10、uced on the painted panel beyond the boundaries of the test specimen. 3.2.1 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. 3.2.2 Thickness 0.09 +/- 0.02 or (ASTM D1000) as specified o
11、n engineering drawing 3.2.3 Width As specified on (ASTM D1000) engineering drawing 3.2.4 Gloss As specified on (FLTM BI 110-01, 60 engineering drawing glossmeter) Tolerances Low gloss ( 30% reading) +/- 7 units 3.2.5 Print/Coating Adhesion (FLTM BI 106-01, Method C) There shall be no separation of p
12、rinted colors/coatings from the base film. 3.2.6 Tensile Strength 7.0 MPa min (ASTM D 882, Method A, 25 x 150 mm specimen, bench marks distance - 50 mm, jaw separation - 100 mm, 50 mm/minute test speed) 3.2.6.1 Elongation 35% min 3.2.7 180 Peel Adhesion (ASTM D 1000, except determine adhesion to cur
13、rent production exterior paint systems, evaluate plot according to ISO 6133 Figure 1) Note: Assemblies shall be conditioned for 24 h at standard conditions prior to exposure. Testing shall be conducted 1 h after removal from the conditioning environment; after water immersion, 4 h recovery is permit
14、ted. (3.2.7.3 - 3.2.7.4) 3.2.7.1 After 20 minutes at 23 C and 50% RH 450 N/m min 3.2.7.2 After 48 h at RT 700 N/m min ENGINEERING MATERIAL SPECIFICATION WSK-M3G178-B1/B4 Copyright 2012, Ford Global Technologies, Inc. Page 3 of 8 3.2.7.3 Aged Test Method: Expose two samples to each of the following c
15、onditions: 168 h at 80 +/- 2 C. 700 N/m min 240 h water immersion 550 N/m min (FLTM BI 104-01) After 24 h reconditioning 700 N/m min Cycle Exposure 4 cycles 700 N/m 4 h at 80 +/- 2 C 4 h at 38 +/- 2 C and 95 - 100% RH, 16 h at - 30 +/- 2 C. Heat Resistance 700 N/m Shall withstand a simulated paint r
16、epair bake (30 minutes at 120 +/- 2 C) after 2 h conditioning without evidence of blistering, checking, cracking, or shrinkage. 3.2.7.4 Cold Adhesion 210 N/m min (ASTM D 1000, except use a test fixture capable of maintaining a 90 peel during the test.) Test Method: Apply samples to substrate/paint a
17、nd condition 20 minutes at 23 +/- 2 C. Expose assembly at 10 C for 10 minutes. Conduct peel adhesion at 10 C. Note: No value shall be below 150 N/m at any data point, (no zipping). 3.2.8 Shrinkage 0.5% max No evidence of cracking or color change after exposure in a mechanical convection oven for 30
18、minutes at 120 +/- 2 C. The test shall be conducted 2 h after application of a 25 x 250 mm strip of the material to a test panel. This test shall be conducted in both machine and cross-machine directions. 3.3 RESISTANCE PROPERTIES 3.3.1 Preparation of Test Panels Except where otherwise noted, resist
19、ance property tests shall be conducted using steel panels 75 x 150 mm minimum freshly painted with current production enamels per FLTM BI 103-02, 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 pap
20、er from the film in a smooth, continuous motion (do not pull the film from the paper) and apply to the test panel. ENGINEERING MATERIAL SPECIFICATION WSK-M3G178-B1/B4 Copyright 2012, Ford Global Technologies, Inc. Page 4 of 8 The film shall cover the face of the test panel allowing a 3.2 - 6.4 mm bo
21、rder 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 conditions for 24 h prior to starting the tests. Note: NAAO will use wet application of deco
22、rative films at their discretion. 3.3.2 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 base film as defined in 3.2.5. 3.3.3 Resistance to Water and Soap Spotting (FLTM BI
23、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 3.2.5. 3.3.4 Resistance to Acid Spotting (FLTM BI 113-02, except omit colorimeter evaluation) No
24、 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 3.2.5. 3.3.5 Gasoline Resistance (FLTM BI 168-01) There shall be no softening, dulling, color change, or permanent stain. In addition there sh
25、all be no lifting of tape edges from the substrate. 3.3.6 Salt Spray Resistance (FLTM BI 103-01, 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 3.3.5. ENGINEERING MATERIAL SPECIFIC
26、ATION WSK-M3G178-B1/B4 Copyright 2012, Ford Global Technologies, Inc. Page 5 of 8 3.3.7 Abrasion (FLTM BN 108-02, 500 cycles, CS-10 wheels, 500 g load) Mass Pigmented Tapes 500 cycles Printed Tapes 500 cycles EAO - without Clearcoat 200 cycles No evidence of loss of pattern or wear-through is permit
27、ted in the abraded area. The substrate used for running the test will be painted steel panels unless otherwise specified. 3.3.8 Migration and Adhesive Staining (FLTM BP 153-01, 25 x 50 x 2.0 +/- 0.2 mm specimen) No visible stain or change in surface appearance produced on the painted panel beyond th
28、e boundaries of the test specimen. 3.3.9 Pressurized Water Resistance (EAO only) (FLTM BO 160-04, Method B) High Pressure Car Wash Spray (NAAO only) Test Method: To determine the ability of exterior graphics to withstand high pressure car wash spray. Operating Conditions: Water Temperature 23 C +/-
29、2 C Spray nozzle type 1504 Nozzle spray angle 15 Nozzle capacity 04 Jet distance from sample 305 mm Angle of sample 45 C Test Pressure 1000 PSI Test Time 60 sec. ENGINEERING MATERIAL SPECIFICATION WSK-M3G178-B1/B4 Copyright 2012, Ford Global Technologies, Inc. Page 6 of 8 Sample Preparation: Samples
30、 prepared under normal plant conditions of 3 minutes at 145 F infrared post heat followed by 1 hr at 23 C 50% relative humidity prior to testing unless otherwise agreed upon by Ford materials engineer. If sample does not pass, report test results. Test Procedure: Set operating conditions. Align test
31、 panel so the jet spray strikes the edge of the sample. Secure panel in fixture. Turn on timed spray switch. After spray stops remove test panel. Evaluate test sample per end user acceptance criteria. There shall be no lifting or removal of tape edges from the substrate. 3.3.10 Storage Stability of
32、Tape/Liner 3.3.10.1 180 Peel Adhesion 447 N/m min (ASTM D1000, except on current production paint/substrate. 20 minutes at 23 +/- 2 C after storage at 3 days at 48 C, average of 3 samples) 3.3.10.2 Elongation 20% min (ASTM D882, Method A, after storage for 3 days at 48 C, 25 x 150 mm sample, 50 mm d
33、istance bench marks, initial jaw separation at 100 mm, pulling speed 300 mm/ minute) 3.3.11 Weathering After exposure in accordance with para 3.3.11.1 and 3.3.11.2, material shall show no color change in excess of the specified AATCC Rating. Materials shall not exhibit loss of adhesion (test accordi
34、ng to para 3.2.7.3) after exposure according to para 3.3.11.1. Chalking or a loss of gloss 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. In addition, there
35、shall be no cracking, crazing, blistering, peeling or other deterioration. ENGINEERING MATERIAL SPECIFICATION WSK-M3G178-B1/B4 Copyright 2012, Ford Global Technologies, Inc. Page 7 of 8 3.3.11.1 Natural weathering (Florida and Arizona exposure) (SAE J1976, Procedure A) 24 Month Exposure Rating 4 - 5
36、, (B1, B2) Gloss Loss 15% max. 60 Month Exposure Rating 3-4, (B3, B4) Gloss Loss 25% max. New Pigment/New Color 2 years required, 3 - 5 and 10 year submissions New Resin Technology 5 - 10 year submissions required 3.3.11.2 Accelerated weathering (SAE J1960, Borosilicate inner and outer filters, 0.55
37、 W/m2 irradiance.) 3000 Hour exposure Rating 4 - 5 (B1, B2) Gloss Loss 15% max. 6000 Hour exposure Rating 3 - 4 (B3, B4) Gloss Loss 25% max. 3.3.12 Chipping Resistance (SAE J400) Test panels should be conditioned per Section 3.2.7.3 Cycle exposure. 3.3.12.1 WSK-M3G178-B1, B3 No more than 5% area 1 P
38、T, 23 C removed. No chip greater than 3 mm diameter area removed. Removed shall refer to clearcoat and film down to the paint. 3.3.12.2 WSK-M3G178-B2, B4 No more than 7% area 1 PT, 23 C & -30 C removed No chip greater than 6mm diameter area removed. Removed shall refer to clearcoat and film down to
39、the paint. Removal tape shall be 10 cm (4 inch) wide or 5 cm (2 inch) wide 3M product #200 Masking Tape or equivalent with 180 peel strength of 22 - 30 oz/in. Removal of loose or damaged Decorative Tape shall follow SAE J400 section 5.2.3.2.J - 5.2.3.2.N only. Degree of chipping will be determined b
40、y use of Atlas View Image Analyzer or equivalent. ENGINEERING MATERIAL SPECIFICATION WSK-M3G178-B1/B4 Copyright 2012, Ford Global Technologies, Inc. Page 8 of 8 3.3.13 Paintable Pre-mask When specified on (NAAO only) Engineering Drawing Shall withstand a simulated paint bake (30 minutes at 150 +/- 2
41、 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. 3.3.14 Substrate Coating System Out Gassing Resistance New film material te
42、chnologies shall be tested for the effect of substrate coating system, post cure outgas resistance. Substrate coating shall include production representative 1k and 2k clearcoat technologies. System test panels or production representative parts shall be tested within 1 day post cure, unless otherwi
43、se noted. 1. Test panel shall be wiped with 50/50 volume percent of isopropanol/water, followed by dry wipe. 2. Using two 50mm x 50mm minimum film samples, peel off the release paper from the film in a smooth, continuous motion. Apply film samples to test panel using 2 common application process met
44、hods. a. Dry apply. b. Wet apply, using production representative surfactant. 3. Test panels, with applied film, shall be conditioned at standard conditions for 2 hours. 4. Bake 24 hours at 80C. No evidence of film blistering or peeling. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 5. SUMMARY OF REVISIONS 2012 11 08 Gasoline Resistance method was FLTM BO 101-05. Added Out Gassing Resistance requirement.
