1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 14 Activated M. Gramlic, L. Schmalz, C. Mracna, NA Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 5 TAPE, TRANSIT FILM, REMOVABLE, INTERIOR WSS-M3G238-A1 TAPE, TRANSIT FILM, REMOVABLE, WHEELS WS
2、S-M3G238-A2 TAPE, TRANSIT FILM, REMOVABLE, EXTERIOR WSS-M3G238-A3 1. SCOPE The material defined by this specification is a film with one side uniformly coated with low tack adhesive. 2. APPLICATION This specification was released originally for material used as a manufacturing and shipping aid to pr
3、otect interior and exterior surfaces (painted and non-painted) against soiling and damage prior to customer delivery. The temperature range and criteria for proper application and removal of the film should follow manufacturers recommended practices. 2.1 LIMITATIONS Review the Ford Approved Source L
4、ist for approved products and applications. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements for Production Materials (WSS-M99P1111-A). 3.2 FUNCTIONAL APPROVAL Materials being evaluated for app
5、roval 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. 3.3 APPEARANCE Upon being unwoun
6、d for application, the film shall present a smooth and uniform appearance, allowing for satisfactory application properties. The color and appearance shall be visually similar to the standard approved film. 3.4 GREEN STRENGTH The tape shall develop sufficient adhesion to permit normal handling immed
7、iately after application. ENGINEERING MATERIAL SPECIFICATIONWSS-M3G238-A1/A2/A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 5 3.5 PREPARATION OF TEST SPECIMENS Substrate test specimens may be obtained from representative plaques or production parts. Unless
8、 otherwise specified, tests shall be conducted on production representative substrates by applying the tape per the following procedure: Clean test panels with a suitable solvent, such as a 50/50 mix of isopropyl alcohol and water, and allow to air dry. Peel the liner from the film in a smooth conti
9、nuous motion. Do not peel the film from the liner. Position the tape on the test substrate. For flat test panels, use the roller described in ASTM D 1000 (except roller rate: 50 mm/s) with no additional pressure, pass the roller over the full length of the tape once in each direction. For test parts
10、 with curved substrates, use a squeegee to apply the film. Test samples with applied tape shall be conditioned for 48 h at 23C and 50% relative humidity prior to environmental exposure. Tests shall be completed within 24 h after removal from the conditioning environment unless otherwise specified. 3
11、.6 ADHESION AFTER ENVIRONMENTAL EXPOSURE- INTERIOR (A1) (ASTM D1000) ACCEPTANCE CRITERIA After each environmental exposure test (paragraphs 3.6.1-3.6.4), peel the tape from the substrate. The film must be removed in a continuous manner without breakage, damage to the substrate, adhesive stain, disco
12、loration or gloss change. Adhesive transfer allowed but must be less than 5% and easily removed with manufacturer recommended cleaning procedure. 3.6.1 WEATHERING RESISTANCE (FLTM BO 116-01, ISO 105 A-02/AATCC Evaluation Procedure 1), 225.6 kJ/m23.6.2 HEAT RESISTANCE (7 days at 90 +/- 2 C) 3.6.3 HUM
13、IDITY RESISTANCE (7 days at 38 +/- 2 C and 95 - 100% relative humidity) 3.6.4 ENVIRONMENTAL CYCLE RESISTANCE 5 h at -30 +/- 2 C 30 min at 23 +/- 2 C and 50% R.H. 5 h at 90 +/- 2 C 30 min at 23 +/- 2 C and 50% R.H. 2 h at 50 +/- 2 C and 95 +/- 5% R.H. 30 min at 23 +/- 2 C and 50% R.H. 5 h at -30 +/-
14、2 C 30 min at 23 +/- 2 C and 50% R.H. 5 h at 90 +/- 2 C 3.6.5 ODOR Rating 3 max (FLTM BO 131-03) ENGINEERING MATERIAL SPECIFICATIONWSS-M3G238-A1/A2/A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 3.7 ADHESION AFTER ENVIRONMENTAL EXPOSURE- WHEELS (A2) (AST
15、M D 1000, adhesion tests use 180 peel) ACCEPTANCE CRITERIA After each environmental exposure test (paragraphs 3.7.2-3.7.5), peel the tape from the substrate. The film must be removed in a continuous manner without breakage, damage to the substrate, adhesive stain, discoloration or gloss change. Adhe
16、sive transfer allowed but must be less than 5% and easily removed with manufacturer recommended cleaning procedure. Unless otherwise indicated, the peel loads shall be 7 - 30 N/25mm after all environmental exposure tests. 3.7.1 INITIAL ADHESION (20 Minutes at Ambient Temperature) Minimum 5 N/25mm -
17、for use on Wheels greater than 345 sq./cm. surface contact area. Minimum 7 N/25mm - for use on Wheels less than 345 sq./cm. surface contact area. 3.7.2 RESISTANCE TO WEATHERING Xenon Weatherometer, (SAE J2527, 0.55W/m2 Irradiance, 168 hrs, Borosilicate inner and outer filters, Atlas Water Cooled, Ro
18、tary Drum Xenon Arc Apparatus only) 3.7.3 HEAT RESISTANCE (7 days at 80 +/- 2 C) 3.7.4 HUMIDITY RESISTANCE (7 days at 38 +/- 2 C and 95 - 100% relative humidity) 3.7.5 ENVIRONMENTAL CYCLE RESISTANCE (FLTM BQ 104-07, Procedure 1 or 10) 3.8 ADHESION AFTER ENVIRONMENTAL EXPOSURE- EXTERIOR (A3) (ASTM D1
19、000) Following each environmental exposure (paragraphs 3.8.1-3.8.5.) conduct 180 degree peel adhesion per ASTM D1000. The film must be removed in a continuous manner without breakage, damage to the substrate, adhesive stain, discoloration or gloss change. No adhesive transfer allowed after any envir
20、onmental conditions. 3.8.1 RESISTANCE TO WEATHERING 3.8.1.1 Xenon Weatherometer, 6-9 N/25 mm (SAE J2527, 0.55W/m2 Irradiance, 500 hrs, Borosilicate inner and outer filters, Atlas Water Cooled, Rotary Drum Xenon Arc Apparatus only) Application of film for Xenon Weathering test: Apply the film in such
21、 a manner that a border 10 mm wide is created on all edges which has exposed paint without film. This will allow for weathering of the edges of the film. ENGINEERING MATERIAL SPECIFICATIONWSS-M3G238-A1/A2/A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 3.
22、8.1.2 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) Application of film prior to Outdoor Weathering: Use a spray bottle to apply tap water to the panel prior to applying the film. Apply tape ove
23、r the water and purposely add wrinkles/creases to the tape during application. Minimum film size should be 100 x 100 mm. Multiple samples can be applied to each paint panel. NOTE: For body in white paint, outdoor exposure panels shall be 300 x 500 mm metal panels painted black from each paint suppli
24、er for with each clear coat technology currently supplied to Ford. Use actual part when testing film for hang on parts. No surface defect, adhesive residue, and witness/marks/worm tracking of discoloration allowed on paint surface. 3.8.2 HEAT RESISTANCE 6-9 N/25mm (7days at 80 +/- 2 C) 3.8.3 CONDENS
25、ING HUMIDITY RESISTANCE, 6-9 N/25mm (FLTM BI 104-02, Method A, 120 h) 3.8.4 ENVIRONMENTAL CYCLE RESISTANCE 6-9 N/25mm (FLTM BQ 104-07, Procedure 1 or 10) 3.8.5 RESISTANCE TO ETCH/FALLOUT DAMAGE 3.8.5.1 Acid Resistance No etching permitted (FLTM BI 113-01 except 80o C for 4 hrs) Sulfuric acid H2SO4 a
26、djusted to pH of 2 Bee dropping mixture (47 g formic acid, 24 g tannic acid 10% in H2O, 24 g honey and 5 g albumin 10% in H2O. Apply 0.2 mls of specified solutions on test panels. Place in preheated oven at 80o C for 4 hrs. Remove film when panel returns to room temperature. 3.8.5.2 Fluid Resistance
27、 (FLTM BI 168-01, Method B, Gasoline, Engine Oil, Coolant, Windshield Washer Fluid) No evidence of softening, staining, blistering, flaking, chipping, checking, chalking, cracks, splits, sinks, bulges, tackiness, peeling or delamination, change in gloss, milkiness, wrinkling, iridescence, or bloom.
28、ENGINEERING MATERIAL SPECIFICATIONWSS-M3G238-A1/A2/A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5 3.8.5.3 Soot Resistance No staining, dulling or other damage to the painted surface. Place 0.2 mls of artificial soot liquid (20 parts carbon black, 75 part
29、s tap water, and 5 parts 1N H2SO4, by wt.) on the test panel. Place test panel in 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. 3.8.5.4 Iron Filling Staining Resistance No staini
30、ng 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 staining. 4. GENERAL INFORMATION The information giv
31、en below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 MATERIAL PROPERTIES (ASTM D1000) Where applicable the following properties may be specified on the engineering drawing. In all cases this information will be provided by the supplier when requested. 4.1.1 Color 4.1.2 Thickness 4.1.3 Base Film / Adhesive / Release Liner 4.1.4 Application Substrate 4.1.5 Application Process 4.1.6 Tensile Strength 4.1.7 Elongation 4.2 STORAGE STABILITY 6 months (10 - 28 C and 10 - 80% relative humidity)
