1、ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions2003 01 17 Revised Para 3.0 inserted ; Para 3.9 & 4 deleted 1984 04 26 3.2 Revised RD 885100-37 1981 10 15 Released H8L-44 Printed copies are uncontrolled Page 1 of 4 Copyright 2002, Ford Global Technologies,
2、Inc. ADHESIVE, EPOXY - ONE PART - ETHYLENE GLYCOL RESISTANT ESH-M2G251-A 1. SCOPEThe material defined by this specification is a flowable, heat curing, one part epoxy adhesive thathas a high tensile strength over a wide temperature range and is ethylene glycol resistant.2. APPLICATIONThis specificat
3、ion was released originally for material used for sealing tube-to-header joints inmechanically assembled aluminum radiators.3. REQUIREMENTS3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materi
4、als (WSS-M99P1111-A). 3.1 COLOR Grey, black or as specified on the engineering drawing. 3.2 VISCOSITY (ASTM D 1084, Method “B“) As received 150,000 200,000 (mPas) cP Aged 336 h at 38 +/- 2 C, tested 225,000 (mPas) cP at 23 +/- 2 C, max 3.3 SOLIDS, min 99.75 +/- 0.25 % (ASTM D 2834) 3.4 WEIGHT PER VO
5、LUME 1.67 - 1.72 kg/L (ASTM D 816, para 28.1) (13.95 - 14.35 lb/gal) Weight tolerance +/- 0.018 kg/L (0.15 lb/gal) of originally approved production sample submitted by supplier. NOT TO BE USED FOR NEW DESIGN2014 12 08 N Status No replacement named L. Sinclair, NAENGINEERING MATERIAL SPECIFICATION E
6、SH-M2G251-A Page 2 of 4 Copyright 2002, Ford Global Technologies, Inc. 3.5 SHEAR ADHESION STRENGTH, MPa (psi), min 3.5.1 High Temperature Strength at 133 +/- 3 C As cured 10.3 (1500) After heat aging 336 h at 133 +/- 3 C 9.0 (1300) Samples may cool to room temperature after heat aging. Soak at 133 +
7、/- 3 C for 10 minutes prior to test. 3.5.2 Immersion in Engine Oil, ESE-M2C96-F 9.0 (1300) Expose cured samples for 336 h at 133 +/- 3 C, normalize in fresh oil at room temperature for 30 minutes. Test at R.T. 3.5.3 Immersion in Automatic Transmission Fluid, 8.3 (1200) ESW-M2C33-F Expose cured sampl
8、es for 336 h at 133 +/- 3 C, normalize in fresh fluid for 30 minutes. Test at R.T. 3.5.4 Immersion in Engine Coolant, 3.4 (500) ESE-M97B44-A, and tap water 45%/55 +/- 5% respectively Expose cured samples for 336 h at 133 +/- 3 C in a sealed chamber under air or nitrogen at a pressure of 138 kPa (20
9、psi) gage. Same except at 124 +/- 3 C 8.3 (1200) 3.5.5 Immersion in Salt Water 7.6 (1100) Expose cured samples in 5% neutral saline solution, prepared per ASTM B 117, for 336 h at R.T., 23 +/- 2 C. 3.5.6 Low Temperature Exposure at -40 +/- 3 C for 10 minutes As cured 9.3 (1350) After heat aging 336
10、h at 133 +/- 3 C 9.3 (1350) 3.5.7 Thermal Shock 9.3 (1350) Expose cured samples to 10 cycles of: 15 minutes at 133 +/- 3 C and quench immediately in tap water at 10 +/- 2 C for 5 minutes. ENGINEERING MATERIAL SPECIFICATION ESH-M2G251-A Page 3 of 4 Copyright 2002, Ford Global Technologies, Inc. 3.5.8
11、 Impact/Shear 10 (1450) (Gardner Impact ASTM G 14, Sec. 27-41) Cured sample is clamped rigidly from one end, 25 mm (1 in) from bond area and positioned for impact on the flat side. Drop a 22.5 g (0.8 oz) weight from a height of 0.3 m (12 in) to impact at center of bonded section. Test shear adhesion
12、 at 23 +/- 2 C. Test Method: . Use two 25 x 75 mm (1 x 3 in) x 1.5 mm (0.060 in) thick AA 3005-0 aluminum coupons per sample. . Clean with trichloroethylene until a break-free film is obtained when rinsed with water. . Apply adhesive in a thin even layer covering 6 mm (0.25 in) on each surface to be
13、 bonded. Overlap the two adhesive coated panels 6 mm (0.25 in) and press together firmly to assure both surfaces are wetted properly. Use 3 pieces of 6 mil (0.15 mm) copper or stainless steel wire to control adhesive thickness. Wires are equally spaced between coupons parallel to direction of shear
14、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 (1 lb) max. . Tests are to be performed with a jaw separation rate of 5 mm (0.2 in)/minute. 3.6 STORAGE STABILITY Shall be stored in sealed containers at temperatur
15、es 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 months. When these materials are stored at temperature below 23 C, they shall be conditioned at room temperature prior to application. Storage temperatures mu
16、st be kept below 55 C and short-term local contact below 150 C to avoid exothermic reaction. 3.7 EASE OF CLEANING Shall be easily removed. Test 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 ra
17、g wet with toluene, ketone or trichlorethylene. ENGINEERING MATERIAL SPECIFICATION ESH-M2G251-A Page 4 of 4 Copyright 2002, Ford Global Technologies, Inc. 3.8 QUALITY Shall be a smooth homogeneous mixture, free from foreign material and properties detrimental to normal production operations. 5. GENE
18、RAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 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 trichlorethylene.
