1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 07 28 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.13, 3.15, 4 1995 01 19 Released NB00I10043054416 AWB KPM Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 TAPE, ADHESIVE, PRESSURE SENSITIVE, TW
2、O SIDED, WSB-M3G222-A ACRYLIC, UV RESISTANT, HIGH TACK, INTERIOR 1. SCOPE The material defined by this specification is a two sided acrylic based pressure sensitive adhesive film with high initial tack and ultraviolet light resistance. 2. APPLICATION This specification was released originally for ma
3、terial used to bond silver coated mirror glass to painted aluminum for rear view mirror assemblies. Prior to approval for other applications, the performance of the tape must be verified on the intended substrates to the requirements of this specification and requirements defined in any associated c
4、omponent or assembly specifications. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 GREEN STRENGTH The tape shall develop sufficient adhesion to
5、 permit normal handling immediately after application. 3.5 MATERIAL PROPERTIES 3.5.1 Color Clear 3.5.2 Tape Dimension As specified on engineering drawing 3.5.3 Tape Thickness (ASTM D 1000) Adhesive Film 0.33 +/- 0.03 mm Release Liner, nominal 0.16 mm 3.6 LINER REMOVAL, max 35 N/m (ASTM D 1000) ENGIN
6、EERING MATERIAL SPECIFICATIONWSB-M3G222-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 3.7 PREPARATION OF TEST SPECIMENS Evaluate the tape performance on both silver coated glass mirror blanks and aluminum panels painted with current production enamel acc
7、ording to respective paint specification unless otherwise specified. Apply the tape per the following procedure: Clean test panels with a 50/50 blend (volume) of isopropyl alcohol and water and allow to air dry. Peel the liner from the film in a smooth continuous motion. Do not peel the film from th
8、e liner. Position the tape on the test substrate. Using the roller described in ASTM D 1000 with no additional pressure, pass the roller over the full length of the tape once in each direction. Test samples with applied tape shall be conditioned for 48 h at 23 +/- 2 C and 50% relative humidity prior
9、 to exposure. Tests shall be completed within 4 h after removal from the conditioning environment unless otherwise specified. 3.8 ADHESION PROPERTIES (ASTM D 1000) To minimize elongation during testing, apply aluminum foil or polyester film of about 50 micrometer thickness to the reverse side of the
10、 tape. 3.8.1 Initial Adhesion, min (ASTM D 1000) 20 minutes at 23 +/- 2 C 510 N/m 72 h at 23 +/- 2 C 590 N/m 3.8.2 Heat Resistance, min 1100 N/m (7 d at 100 +/- 2 C) 3.8.3 Humidity Resistance, min 1100 N/m (7 d at 38 +/- 2 C, 95 - 100% relative humidity) 3.8.4 Environmental Cycle Resistance, min 110
11、0 N/m 5 cycles, each cycle consisting of the following: 4 h at 90 +/- 2 C 4 h at 38 +/- 2 C and 95 - 100% relative humidity 16 h at -30 +/- 2 C 3.9 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 60 Formation of a clear film, droplets or crystals is cause for rejection. Perform the test with
12、the tape bonded to aluminum foil with the release liner removed. ENGINEERING MATERIAL SPECIFICATIONWSB-M3G222-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.10 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute Perform the test with the tape
13、bonded to aluminum foil with the release liner removed. 3.11 ODOR, max Rating 2 (FLTM BO 131-01/SAE J1351) Perform the test with the tape bonded to aluminum foil with the release liner removed. 3.12 MIRROR ASSEMBLY RESISTANCE REQUIREMENTS The following requirements shall be evaluated on mirror assem
14、blies and must include all materials and constructions. Separate assemblies are required for each test. After each of the following exposures, the assembly must show no evidence of delamination, yellowing, loss of adhesion or any other effect which would detract from its proper function or appearanc
15、e. The assemblies with the applied tape shall be conditioned for 48 h at 23 +/- 2 C and 50 +/- 5% relative humidity prior to exposure. After exposure condition the assemblies for 4 h at 23 +/- 2 C and 50 +/- 5% relative humidity and examine for failure properties. 3.12.1 Heat Resistance (7 d at 100
16、+/- 2 C) 3.12.2 Simulated Paint Repair Resistance (30 minutes at 120 +/- 2 C) 3.12.3 Humidity Resistance (7 d at 38 +/- 2 C and 95 - 100% relative humidity) 3.12.4 Environmental Cycle Resistance 5 cycles, each cycle consisting of the following: 4 h at 90 +/- 2 C 4 h at 38 +/- 2 C and 95 - 100% relat
17、ive humidity 16 h at -30 +/- 2 C 3.12.5 Salt Spray Resistance, 96 h (FLTM BI 103-01) 3.12.6 Water Immersion, 96 h (FLTM BI 104-01) ENGINEERING MATERIAL SPECIFICATIONWSB-M3G222-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4 3.14 FUNCTIONAL APPROVAL Materia
18、ls being evaluated for approval 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. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 STORAGE STABILITY 12 months (10 - 20 C and 30 - 70% relative humidity)
