1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revision 2006 07 28 N-STATUS Replaced by WSS-M11P64-A1/A2/A3 M. Mehandru 2003 02 26 Revised Para 3.0 inserted ; Para 3.1,3.2, 3.3, 3.8, 4 deleted 1987 06 02 CSR1-DR148689 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page
2、 1 of 5 ADHESIVE, HEAT CURING - EPOXY/GLASS FIBER ESB-M2G281-C LAMINATE FOR METAL REINFORCEMENT - LOW BAKE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a low temperature curing, epoxy/fiberglass laminate, supplied in die cut form. 2. APPLICATION This specifica
3、tion was released originally for material used to reinforce and stiffen sheet metal body panels. This material can be applied to electrocoat primed steel surfaces. Recommended minimum material bake schedule is 8 min at 135 C metal temperature. 3. REQUIREMENTS Material specification requirements are
4、to be used for initial qualification of materials. 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 DIMENSION As specified on engineering drawing. 3.5 UNCURED MAT
5、ERIAL PROPERTIES 3 5.1 Construction Construction shall consist of a epoxy/fiberglass adhesive laminate with a release liner on one side. There shall be no loose glass fibers after die cut operation. 3.5.2 Thickness, Test Sample 1.27 +/. 0.1 mm (ASTM D 461, 85 g load, 25 mm diameter foot, total fiber
6、glass and adhesive) 3.5.3 Formability The material shall not delaminate or crack when folded 180 upon itself. 3 5.4 Specific Gravity 1.2 - 1.6 (ASTM C 167) ENGINEERING MATERIAL SPECIFICATIONESB-M2G281-C Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 3.5.5 T
7、ack Adhesion Test The material shall not peel at edges fall off from panel. Test Method: . Apply a 100 x 150 mm adhesive laminate strip to the center of a 300 x 300 mm metal panel of each substrate listed in para 5.2. . Pass a 2 kg roller over sample in one forward and reverse direction. . Invert pa
8、nels immediately after adhesive application and condition at 23 +/- 2 C for 4 h minimum. . Save panels for Inverted Bake test, para 3.6 2 3 5.6 Phosphate Wash Resistance No evidence of material wash or due to pre-cleaning or phosphating solutions in flow phosphate equipment. 3.5.6.1 Laboratory (FLTM
9、 BU 16.1, Method “A“) 3.5.6.2 Functional Materials being evaluated for initial approval to specification shall be subjected to a production trial in an area intended for use. This trial will be conducted after all other specification requirements have been met including laboratory evaluation for flo
10、w phosphate wash resistance. 3.5.7 Electrocoat Compatibility Shall not contaminate (FLTM BV 119-01, use current electrocoat primer bath production paints as identified cause electrocoat film by the Body Materials Engineering irregularities Office) 3.5.8 Storage Stability The material shall be stored
11、 in sealed packages containing desiccant at temperatures below 32 C away from all sources of heat and sunlight. Heat greatly accelerates aging. Under these storage conditions, the shelf life of the material shall be 2 months. When these materials are stored at temperatures below 23 C, they shall be
12、conditioned at room temperature prior to application. Adequate conditioning permits the material to obtain its optimum application properties. Materials in opened packages shall be used within 72 hours. 3.5.9 Release Paper Adherence and Removal The release paper shall remain attached to adhesive sur
13、face during shipping and handling. It shall be easily removed from the adhesive without adhesive separation or paper tear. ENGINEERING MATERIAL SPECIFICATIONESB-M2G281-C Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 5 3.5.10 Packaging The material shall be s
14、upplied in sealed packages containing desiccant. Material blocking or dimensional changes is not permitted during container shipping or storage. 3.6 CURED MATERIAL PROPERTIES 3.6.1 Flexural Strength, min Normal (Condition for 30 min at specified temperature prior to test) 3.6 1.1 Test at 23 +/- 2 C
15、180 N 3.6.1.2 Test at 93 +/- 1 C 120 N Environmental Age (Condition for 24 h at 23 +/- 2 C after exposure, then test at 23 +/- 2 C) 3.6.1.3 14 days heat age at 88 +/- 1 C 180 N 3.6.1.4 500 h humidity at 38 +/- 2 C and 95-100 RH 180 N 3.6.1.5 10 cycles: 4 h humidity (38 +/- 2 C and 95-100% RH) and 16
16、 h at -29 +/- 1 C 180 N 3.6.1.6 72 h at 41 +/- 1 C 180 N (Adhesive storage only prior to bonding) Test Method: . Apply a 1.1 x 25 x 150 mm adhesive laminate strip to a 25 x 150 mm panel of each substrate listed in para 5.2. . Pass a 2 kg roller over sample in one forward and reverse direction. . Cur
17、e test samples per the process bake schedules, para 5.3. . After exposure to each test condition, place test samples in the fixture shown below . Conduct flexural strength test at a crosshead rate of 5 mm/min. . Record the peak load value. A minimum of 3 samples per test condition shall be evaluated
18、. ENGINEERING MATERIAL SPECIFICATIONESB-M2G281-C Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 5 FLEXURAL STRENGTH TEST FIXTURE 3.6.2 Inverted Bake The material shall not peel at edges or fall off from panel. Test Method: . Subject the panels prepared per pa
19、ra 3.5.5 to an inverted bake. . Maintain adhesive in the inverted position and expose the panels to the process bake conditions per para 5.3. . Save samples for Cold Slam Test para 3.6.3. 3.6.3 Cold Slam (FLTM BV 101-02, 10 cycles of 6 slams at -29 +/- 2 C, subject the panels prepared per para 3.6.2
20、) The material shall no crack of separate from panel. 3.7 FUNCTIONAL APPROVAL Material being evaluated for initial approval to this specification shall be subjected to a production trial. Functional trial results should be available to Design and Materials Engineering prior to material approval and
21、release. ENGINEERING MATERIAL SPECIFICATIONESB-M2G281-C Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification: 5.1 MEC
22、HANICAL CONVECTION OVEN The mechanical oven(s) used to cure the material shall be capable of obtaining 204 C metal temperature on body steel (0.89 mm thickness) within 8 - 10 min. 5.2 SUBSTRATES 5.2.1 CRLC steel meeting ESB-M1A250-A: Nominal 0.81 mm thickness. Substrate phosphated and electrocoat primed meeting ESB-M2P4-A performance requirements. Use current production paints as identified by the Body and Chassis Product Engineering Office. 5.3 PROCESS BAKE SCHEDULES 5.3.1 Minimum: 8 min at 135 C metal temperature 5.3.2 Maximum: 20 min at 177 C metal temperature
