1、 NON-PRODUCTION MATERIAL SPECIFICATION Material Name Specification Number Date Action Changes 2010 03 09 N-STATUS Replaced by WSS-M3G238-A3 C. Mracna, NA 1994 03 01 Page 1 of 5 TAPE, PRESSURE SENSITIVE, TRANSIT FILM, REMOVABLE M-3G220-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE: The material defined by
2、 this Standard is a pressure sensitive adhesive backed polyolefin film with easy removal characteristics. 2. APPLICATION: This material is applied to horizontal painted surfaces of new vehicles at the assembly plant to provide protection from atmospheric fallout and iron filings during rail transpor
3、t. Easy removability after delivery is required, even after extended time periods of up to six months after application. 3. REQUIREMENTS: 3.1 STATISTICAL PROCESS Suppliers must conform to the requirements of Ford Quality System Standard Q-101. A mutually acceptable Control Plan as described therein
4、is required for material/source approval. Appropriate statistical tools must be used to analyze process/product data so that variation in the final product is continuously reduced. 3.2 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a controlled
5、 atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 4 h prior to testing and tested under the same conditions unless otherwise specified. 3.3 FILM PROPERTIES 3.3.1 Appearance Upon being unwound for application, the film shall present a smooth and uniform appearance, allowing
6、 for satisfactory application properties. The color and appearance shall be visually similar to the standard approved film. 3.3.2 Thickness (Sheet + Adhesive backing) 53 +/- 5 micrometer (ASTM D 1000) The reported thickness shall be the average of 5 measurements taken 100 mm apart. NON-PRODUCTION MA
7、TERIAL SPECIFICATION M-3F220-A Page 2 of 5 3.3.3 Light Transmittance 0.5% max. at 200 - 800 nm (Perkin-Elmer UV/Vis Spectrophotometer (Lambda 6) with Lab Sphere integrating sphere attachment) 3.3.4 Breaking Factor, min (ISO R 527, type 2/ASTM D 638M, type M-II, 100 mm/min test speed) - Room temp. (4
8、8 h at 23 +/- 2 C) 30 N/25 mm - Low temp. (3 h at 0 +/- 2 C) 30 N/25 mm - High temp. (3 h at 60 +/- 2 C) 30 N/25 mm - 500 h fluorescent UV* * Exposure per para 3.4.7. 3.3.5 Elongation at Break, min (ISO R 527, Type 2/ ASTM D 638M, Type M-II, 100mm/min test speed) - Room temp. (48 h at 23 +/- 2 C) 50
9、0 % - Low temp. (3 h at 0 +/- 2 C) 500 % - High temp. (3 h at 40 +/- 2 C) 500 % - 500 h fluorescent UV* * Exposure per para. 3.4.7. 3.3.6 Application and Workability The Film shall be easy to apply on the vehicle at the assembly plant and shall be workable enough to conform to rounded areas and corn
10、ers of the vehicle. 3.3.7 Cold Weather Workability The Film shall maintain adhesion to the surface in cold weather. The film shall not crack or tear during removal in cold weather. 3.4 180 Degree Peel Adhesion, min (ASTM D 1000, adhesion to test panels specified below, plot evaluated per ISO 6133, M
11、ethod B) Test Panel Preparation: Testing shall be conducted on test panels coated with the required enamel system. Panels shall be prepared according to the specifica- tion requirements of the respective enamel. One half of the surface of the test panel shall be repaired with low bake catalyzed enam
12、el. The Film shall perform equally over both standard bake and low bake catalyzed enamel. Apply Film per ASTM D 1000. NON-PRODUCTION MATERIAL SPECIFICATION M-3F220-A Page 3 of 5 3.4.1 - Room temperature 6-9 N/25 mm (48 h at 23 +/- 2 C) 3.4.2 - Low temperature 2 N/25 mm (3 h at 0 +/- 2 C) 3.4.3 - Hig
13、h temperature 4 N/25 mm (3 h at 40 +/- 2 C) 3.4.4 Water Resistance, Controlled Condensation 6-9 N/25 mm (ASTM D 4585, 120 h at 43 +/- 20 C) Upon removal of the Film, the enamel underneath shall show original condition with no blistering, dulling, etc. 3.4.5 Heat Resistance 6-9 N/25 mm (168 h at 60 +
14、/- 2 C) Upon removal of the Film, the enamel underneath shall show original condition, with no transfer of barrier film adhesive, or surface deformation. 3.4.6 Cold Cycle (5 Cycles) 6-9 N/25 mm Each cycle consists of the following: (16 h at -20 +/- 2 C) (8 h at 60 +/- 2 C) (16 h at 43 +/- 2 C) (Cont
15、rolled Condensation - ASTM D 4585) The Film shall maintain original appearance and integrity with no evidence of cracking or peeling. 3.4.7 Accelerated Weathering (500 h) 6-9 N/25 mm (SAE J2020, Fluorescent UV and Condensation Apparatus) Application of Film for Weathering test. For both accelerated
16、weathering (para. 3.4.7) and outdoor weathering panels (para. 3.4.8), apply the Film in such a manner that a border 10 mm wide is created on all edges which has exposed enamel without Film. This will allow for weathering of the edges of the Film. NON-PRODUCTION MATERIAL SPECIFICATION M-3F220-A Page
17、4 of 5 3.4.8 Outdoor Weathering (6 Months) 6-9 N/25 mm (Jacksonville, FL or Atlanta, GA area with 3 summer months included, panels exposed at 0 deg from horizontal) NOTE: Outdoor exposure panels shall be 300 mm x 450 mm. Upon removal of the Film, the enamel underneath shall show original condition,
18、with no transfer of barrier film adhesive, surface deformation, or paint etching or other fallout damage. 3.5 Resistance to Etch/Fallout Damage Test Panel Preparation Prepare per para. 3.4 except apply film to the entire painted surface to complete the test panel. 3.5.1 Acid and Alkali Resistance no
19、 etching permitted Acid: H2SO4 aqueous soln, adjusted to ph 3 Alkali: 0.1N NaOH aqueous soln. Place 0.2 mls of each solution on the test surface. Place test panels in 80 +/- 2 C oven for 4 h. Remove panels from oven, allow to cool, and peel off the Film to examine painted surface for etching or surf
20、ace damage. 3.5.2 Gasoline Resistance There shall be no Engine Oil Resistance swelling, softening or Antifreeze Resistance other damage to the paint Windshield Washer Resistance surface. For each fluid, stack 3 pieces of 30 mm x 30 mm flannel cloth over area of panel to be tested and wet with 10 mls
21、 of subject fluid. Allow to stand for 4 h at 23 +/- 2 C, remove the Film, and examine painted surface. 3.5.3 Soot Resistance There shall be no staining, dulling or other damage to the painted surface. Place 0.2 mls of artificial soot liquid (20 parts carbon black, 75 parts tap water, and 5 parts 1N
22、H2SO4, by wt.) on the test panel. Place test panel in a 80 +/- 2 C oven for 4 h. Remove panel from oven at completion and allow to cool to room temperature. Peel off the Film and examine painted surface for possible damage. NON-PRODUCTION MATERIAL SPECIFICATION M-3F220-A Page 5 of 5 3.5.4 Iron Filin
23、gs Staining Resistance There shall be no staining of the paint surface. Scatter 5 g of #200 mesh iron filings on the test panel and place in an 80 +/- 2 C oven for 4 h. Remove at completion and subject test panel to 24 h salt spray environment. Peel off the Film and examine painted surface for stain
24、ing. 3.5.5 Bee Pollen Resistance There shall be no Composition: 62% Formic Acid staining or swelling. (by weight) 3% Tannic Acid 1% Albumin 34% Honey Place 0.2 mls of bee pollen on the test surface. Place test panel in 80 +/- 2 C oven for 4 h. Remove panel from oven, allow to cool, and peel off the
25、Film to examine painted surface for staining, swelling, or other surface damage. 3.5.6 Tracking and Sheet Marks Any tracking or sheet marks shall be easily removed with soft cloth w/wo fine rubbing compound. Prepare test panels per para 3.5, except that the Film shall be applied to cause bubbles and
26、 wrinkles to result. Upon completion of tests (performed individually on separate test panels), the Film shall be peeled off and the painted surface examined for defects. - Heat Resistance: 16 h at 80 +/- 2 C. - Water Resistance: 120 h at 43 +/- 2 C. - Accelerated Weathering, SAE J2020: 500 h - Outd
27、oor Weathering,per para. 3.4.8: 6 months 3.5.7 Compatibility with Other Components The Film shall not harden or crack plastic or rubber components, etch glass, stain or dull chrome and aluminum, or cause deterioration of any other components that it comes into contact with. The Film shall be easily
28、removed after completing weathering requirements of para. 3.4.7 (Accelerated Weathering - 500 h) and 3.4.8 (Outdoor Wathering - 6 months). 4. STANDARD PARAGRAPHS: The following standard paragraphs as defined in Manufacturing Standard MGX are herewith made a part of this standard: C2, C3, P1, P3, R3, and R4.
