1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 02 08 Revised Revised 2. Deleted 3.3.8; Inserted 3.6, 4., 4.1, 4.2 Released A2 B. Lange concurred J. Schult Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 3 ADHESIVE, EPOXY, SOLVENT FREE, 180 C CUR
2、ING WSK-M2G329-A 80 C APPLICABLE, METAL/METAL, STRUCTURAL ADHESIVE, EPOXY, SOLVENT FREE, 180 C CURING WSK-M2G329-A2 80 C APPLICABLE, METAL/METAL, STRUCTURAL ADHESIVE, EPOXY, SOLVENT FREE, 180 C CURING WSK-M2G329-A3 60 C APPLICABLE, METAL/METAL, STRUCTURAL 1. SCOPE The material defined by these speci
3、fications is an epoxy base, polyester modified (not for A3), mineral filled, pumpable, solvent-free and heat curing structural metal to metal adhesive. The structural adhesive physical properties are valid for an adhesive thickness from 0.3 to 7.0 mm (for A3 0.1 to 1.0 mm). Mechanical structural adh
4、esive properties are dependent upon bondline thickness. 2. APPLICATION These specifications were released originally for material used for bonding the roof to the body side panel. Assembling of parts to be bonded has to be possible immediately after adhesive application as well as after cooling of a
5、dhesive to 23 +/- 2 C. The materials are applicable on oiled surfaces with acceptable oil film weights (European applications limit the oil/pre-lubricant film weight to max 3 g/m, see Performance Specification WSK-M11P47 paragraph 3.6). Note: Care must be taken to ensure that the local oil film weig
6、ht in the area of the adhesive/sealer application does not exceed the critical limit. Monitoring of the film thickness, adequate storage of the part and/or cleaning of the surface prior to sealer/adhesive application is necessary to avoid critical film thickness values, which would then cause malfun
7、ction of the sealer/adhesive. 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 COMPOSITION Modified Epoxy, based on Bisphenol A and Bisphenol F. C
8、uring mechanism by poly-addition. ENGINEERING MATERIAL SPECIFICATIONWSK-M2G329-A/A2/A3 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 3 3.3 MATERIAL PROPERTIES 3.3.1 Color As specified by the supplier 3.3.2 Solids, min 99.0% (FLTM BV 150-10) A/A2 A3 3.3.3 Ash
9、, max 40% 15% (FLTM BV 150-10) 3.3.4 Weight per Volume, max 1.45 g/cm3 1.3 g/cm3(ASTM D 792) 3.3.5 Viscosity at 80 C (for A1/A2 FLTM BV 103-01, nozzle 2 mm ID, conditioning time up to measurement: 30 minutes at test temperature. For A3 SAE J1524, rotational rheometer with 40 mm diameter parallel pla
10、tes, 500 micron gap, 50 Pas-1ramp, stress controlled rheometers use stress range 0-3500 Pa, strain controlled rheometers use strain range 0-100 s-1, evaluate material to highest stress or strain as the formulation will allow, report material batch/lot number, identify rheometer make and model, for e
11、ach test condition report, yield stress and submit plots for shear stress vs. shear rate, submit plot for viscosity vs. temperature at mid-range shear rate, each component and mixed) A A2 Line pressure, kPa 280 400 3.3.5.1 As received, s 350 550 1600 2000 3.3.5.2 For A3 at 40 C Yield stress 40 140 P
12、a Casson Viscosity 150 450 Pas 3.3.5.3 After Aging (A, A2), max 15% increase based (7 d at 40 +/- 2 C) on original value 3.3.5.4 After Aging (A3), max 15% increase based (7 d at 23 +/- 2 C) on original value All samples shall produce flow diagrams including viscoelasticity established by using rotat
13、ional test equipment as Physica, Haake, Epprecht, Rheometrix etc. to identify characteristic of material. A A2 A3 3.3.6 Cone Penetration at 23 +/- 2 C 7 - 8 5 7 30 (ASTM D 217, total mass 150 g) ENGINEERING MATERIAL SPECIFICATIONWSK-M2G329-A/A2/A3 Printed copies are uncontrolled Copyright 2007, Ford
14、 Global Technologies, LLC Page 3 of 3 3.3.7 Test for Abrasive Content No scratches Test Method: Dilute a one gram sample of material at 80 +/- 2 C with one gram of Butyrolacetone and mix thoroughly. Rub a portion of the diluted material 100 times between two pieces of flat, clean plate glass. The ap
15、pearance of scratches on the glass plate will be considered failure. 3.4 MATERIAL PERFORMANCE PROPERTIES Parts prepared with materials according to this specification shall meet all requirements of performance specification WSK-M11P47-A3. WSK-M2G329-A3 materials shall meet all requirements of perfor
16、mance specification WSK-M11P47-A6. 3.5 QUALITY The material shall be a smooth homogeneous mixture, free from foreign materials and properties detrimental to normal production use. The material must be capable of regaining its initial physical characteristics and performance after re-circulation or a
17、gitation prior to use. 3.6 LINE TRIAL Materials 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. Results shall be made available to Materials Engineering prior to material approv
18、al and release. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 4.1. STORAGE STABILITY 3 month (From date of receipt at Ford Motor Company) The material must be stable during storage in unopened drum
19、s out of direct sunlight at temperatures between 5 C and 32 C. 4.2 OPEN ASSEMBLY TIME As specified by (At the required operation temperature) the supplier Open assembly time is the maximum time interval from initial application of the adhesive to the completion of the part assembly for bonding. 4.3 MATERIAL REFERENCE All related materials used for approval of adhesives according to this specification, e.g. paint materials or metallic substrates, shall be noted in the Initial Sample Report of the adhesive.
