1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2015 01 07 N Status No replacement named L. Sinclair, NA 2003 01 21 Revised Para 3.0 inserted ; Para 3.1, 3.2, 3.3, 3.13, 4 deleted 1990 07 30 RD885100-305 Released Controlled document at www.MATS Page 1 of
2、4 Copyright 2015, Ford Global Technologies, Inc. ADHESIVE, EPOXY - ONE PART - ETHYLENE GLYCOL ESH-M2G320-A RESISTANT NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a low viscosity, heat curing one part epoxy adhesive that is ethylene glycol resistant. 2. APPLICA
3、TION This specification was released originally for material used for sealing tank with header, and tube to header joint on aluminum heater cores. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requiremen
4、ts For Production Materials (WSS-M99P1111-A). 3.4 COLOR Off white, or as specified on the engineering drawing 3.5 VISCOSITY (ASTM D1084, Method B, at 23 C) as received 70,000 - 110,000 MPa.s aged 336h at 38 +/- 2 C, test at 23 +/- 2 C 70,000 - 110,000 MPa.s 3.6 SOLIDS, min 99.75 +/- 0.25 (ASTM D 283
5、4) 3.7 WEIGHT PER VOLUME 2.1 +/- 0.15 Kg/L (ASTM D 816, para 28.1) ENGINEERING MATERIAL SPECIFICATION ESH-M2G320-A Page 2 of 4 Copyright 2015, Ford Global Technologies, Inc. 3.8 SHEAR ADHESION STRENGTH Test Method: . Use two 25 x 75 mm x 1.5 mm thick AA 3005-0 aluminum coupons per sample. . Clean wi
6、th trichloroethylene until a break-free film is obtained when rinsed with water. . Apply adhesive in a thin even layer covering 6 mm on each surface to be bonded. Overlap the two adhesive coated panels 6 mm and press together firmly to assure both surfaces are wetted properly. Use 3 pieces of 0.15 m
7、m copper or stainless steel wire to control adhesive thickness. Wires are equally spaced between coupons parallel to direction of shear loading. . Cure the samples at 200 +/- 3 C for a period of 25-30 minutes in a supported but free state or with a normal load of 0.45 kg max. . Tests are to be perfo
8、rmed with a haw separation rate of 5 mm/minute. 3.8.1 Shear Strength as cured, pulled at 23 +/- 2 C min 8.0 MPa as cured, pulled at 133 +/- 3 C, min 8.0 MPa after heat aging, 336 h at 133 +/- 3 C, min 8.0 MPa (Samples may be cooled to room temperature after heat aging. Soak at 133 +/- 3 C for 10 min
9、utes prior to test.) 3.8.2 Immersion in Automatic Transmission Min 8.3 MPa Fluid, ESW-M2C33-F (336 h at 133 +/- 3 C in aluminum clock) 3.8.3 Immersion in Engine Oil, ESE-M2C393-F, Min 8.3 MPa 336h at 133 +/- 3C in aluminum block) 3.8.4 Immersion in Engine Coolant ESE-M97B44-A, and tap water 50/50 by
10、 volume Expose cured samples for 336 h at 133 +/- 8.3 MPa 3 C in a sealed chamber under air or nitrogen at a pressure of 138 KPa gage, min. Repeat test at 124 +/- 3 C, min 8.3 MPa ENGINEERING MATERIAL SPECIFICATION ESH-M2G320-A Page 3 of 4 Copyright 2015, Ford Global Technologies, Inc. 3.8.5 Immersi
11、on in Salt Water, min 7.6 MPa Expose cured samples in 5 % neutral saline solution prepared per ASTM B117 for 336 h at 23 +/- 2 C 3.8.6 Low Temperature Exposure, min -40 +/- 2 C for 10 minutes as cured 9.3 MPa after heat aging for 336 h at 133 +/- 3 C 9.3 MPa 3.8.7 Thermal Shock, Min 9.3 MPa Expose c
12、ured samples for 10 cycles: 15 minutes at 133 +/- 3 C and quench immediately in tap water at 10 C for 5 minutes. 3.8.8 Impact. Shear , Min (ASTM G 14, Sec. 27-41) 8.3 MPa Cured sample is clamped rigidly from one end 25 mm from hand area and positioned for impact on the flat side. Drop a 22.5 g weigh
13、t from a height of 0.3 m to impact at center of banded section. Test shear strength at 23 +/- 2 C. 3.9 INTERNAL CORROSION SCREENING TEST, MIN. 8.3 MPa (FLTM BP 8-5, 144h at 107 C) Prepared test specimen per para. 3.8 Add 0.15 mg each of Sodium sulfate (NaS04), Sodium Chloride (NaCl), and sodium bica
14、rbonate (NaHC03) per 1 liter of 50/50 ESE-M97B44-A ethylene glycol and tap water. 3.10 STORAGE STABILITY Shall be stored in sealed containers at temperatures below 38 C away from all sources of heat. Minimum shelf life of the material shall be six months. Storage drum must be rotated after three mon
15、ths. When these materials are stored at temperatures below 23 C, they shall be conditioned at room temperature prior to application. Storage temperatures must be keep below 55 C and short-term local contact below 150 C to avoid exothermic reaction. 3.11 EASE OF CLEANING Shall be easily removed Test
16、Method: Apply a 5 mm (3/16 in) bead of adhesive to a clean aluminum panel. Allow to air dry at 23 +/- 2 C for 2 h. To remove adhesive, wipe panels with a rag wet with toluene, ketone or trichloroethylene. ENGINEERING MATERIAL SPECIFICATION ESH-M2G320-A Page 4 of 4 Copyright 2015, Ford Global Technol
17、ogies, Inc. 3.12 QUALITY Shall be a smooth homogeneous mixture, free from foreign materials and properties detrimental to normal production operations. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5
18、.1 CAUTION This material contains epoxy resins and curing agents that under certain conditions of use could be considered toxic. Prolonged and repeated skin contact with this material should be avoided. If skin contact occurs, the material should be removed with soap and water. Tools, equipment and fabricated parts can be cleaned with solvents such as toluene, ketone or trichloroethylene.
