1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 01 27 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.10, 4 1992 07 01 Released EPOOE10176272000 C. Dittebrandt Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 TAPE, ADHESIVE PRESSURE SENSITIVE, ON
2、E SIDED, WSK-M3G201-A PU, 0.2 MM NOMINAL THICKNESS 1. SCOPE The material defined by this specification is a heat resistant colorless clear polyurethane tape. One side is coated with a pressure sensitive adhesive and covered with release paper. 2. APPLICATION This specification was released originall
3、y for material used to cover the joint of window frame to door inner panel. The material is applied on EC-coated or spray primed surfaces. Prior to the release for a particular application and in addition to the requirements specified within this specification, full evaluation as a component of spec
4、ific trim products must be tested by the responsible Component Engineering activity on substrates intended for use in the final application. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For
5、 Production Materials (WSS-M99P1111-A). 3.4 MATERIAL PROPERTIES 3.4.1 Color Colorless clear or according to Engineering Drawing 3.4.2 Thickness 0.18 - 0.23 mm (ASTM D 1000) or according to Engineering drawing 3.4.3 Width See 5.3 3.4.4 Breaking Strength, min 6400 N/m (ASTM D 1000, Method A) 3.4.5 Elo
6、ngation, min 350% (ASTM D 1000) 3.5 PREPARATION OF TEST SPECIMENS Substrate: Steel panels, painted with current production primer according to respective primer specification if not otherwise specified. Test specimens shall be wiped with isopropanol/water (1:1) and dry wiped prior to applying the ta
7、pe or as recommended by supplier. ENGINEERING MATERIAL SPECIFICATIONWSK-M3G201-APrinted copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 Usage of a primer shall be noted in the Initial Sample Report. 3.6 AGING CONDITIONS Expose test specimens to each of the following
8、 conditions before testing per para 3.6. 3.6.1 24 h at 23 +/- 2 C 3.6.2 Humidity aging 14 d at 38 +/- 2 C, 98 +/- 2% RH Reconditioning: 4 h at 23 C and 50 +/- 5% RH 3.6.3 Heat Aging 14 d at 80 +/- 2 C; Reconditioning: 4 h at 23 C and 50 +/- 5% RH 3.6.4 Paint Repair Oven 30 minutes at 120 +/- 2 C; Re
9、conditioning: 4 h at 23 C and 50 +/- 5% RH 3.6.5 Environmental Cycling (FLTM BQ 104-07, Procedure 5) Reconditioning: 4 h at 23 C and 50 +/- 5% RH 3.7 ADHESION PROPERTIES 3.7.1 Peel Adhesion (ASTM D 1000, clause 40 - 42) Aged per 3.6.1, min 600 N/m Aged per 3.6.2, min 300 N/m Aged per 3.6.3, min 600
10、N/m Aged per 3.6.4, min 600 N/m Aged per 3.6.5, min 600 N/m 3.7.2 Shear Adhesion, min 0.2 N/mm2(FLTM BU 151-01, Method A, Fig. 2) 24 h after bonding 3.7.3 Liner Removal, max 10 N/m (ASTM D 1000) 3.8 SOFTENING POINT, min 95 C (ASTM D 816, except preparation of test specimens according 3.5) Maintain o
11、ven temperature at 50 C for 15 minutes and then increase 2.5 C/5 minutes until bond failure. ENGINEERING MATERIAL SPECIFICATIONWSK-M3G201-APrinted copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.9 PAINTABILITY The surface shall be dry to touch after cooling to 23
12、+/- 2 C. It shall be free from cracks or bubbles and shall show a uniform closed paint film without staining or discoloration. Test Method: 1. Prepare test panels of 300 mm x 100 mm according to with current production E-coat and cure according to the respective material specification. 2. Bond 250 m
13、m x 25 mm pieces of tape on the test panels. The mating surfaces must be pressed firmly together to force out trapped air and ensure a good bond. 3. 10 minutes after bonding, coat test assemblies with production epoxy spray primer at a dry film thickness of 0.025 mm - 0.035 mm. 4. After 10 minutes a
14、t 23 +/- 2 C cure specimens separately according to respective spray primer specification. 5. After another 10 minutes at 23 +/- 2 C spray separate specimens with light colored standard and metallic top coat enamel (production material) at a coating thickness (dry) of 0.04 mm - 0.05 mm. 6. After 10
15、minutes at 23 +/- 2 C cure specimens separately according to affected enamel specifications. 7. Condition for 2 h at 23 +/- 2 C and expose in mechanical convection oven maintained at 70 +/- 2 C for 14 days. 8. Test and examine after 24 h at 23 +/- 2 C. 3.10 FOGGING (FLTM BO 116-03) Fog Number, min 6
16、0 Perform the test with the tape adhering with the adhesive side to aluminum foil or steel panel. 3.11 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute Perform the test with the tape adhering with the adhesive side to a steel panel. 5. GENERAL INFORMATION The information given below is
17、provided for clarification and assistance in meeting the requirements of this specification. 5.1 STORAGE STABILITY 6 months (From date of receipt at Ford Motor Company) ENGINEERING MATERIAL SPECIFICATIONWSK-M3G201-APrinted copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4 5.2 STORAGE TEMPERATURE 10 C to 28 C 5.3 WIDTH OF TAPE - SECOND SUFFIX The width of tape shall be identified by an additional suffix to the specification number as follows: Suffix for width 10 10 mm 12 12 mm 15 15 mm 20 20 mm
