1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2014 12 08 N Status No replacement named L. Sinclair, NA 2003 01 21 Revised Para 3.0 inserted ; Para 3.7 & 4 deleted 1971 03 03 Released AA1-220 Page 1 of 7 Copyright 2014, Ford Global Technologies, Inc. ADH
2、ESIVE, URETHANE - TWO COMPONENT - ROOM TEMPERATURE ESB-M2G189-A CURING - STRUCTURAL NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a two component, room temperature curing, urethane resin base, structural adhesive. 2. APPLICATION This specification was released
3、originally as a material used for the structural bonding of glassfiber reinforced polyesters (ESB-M3D105, Type I and Type II) in the construction of the “L“ Series Truck components. The adhesive may be used to bond FRP to FRP, or FRP to steel. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION
4、 MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 BOND STRENGTH (Overlap Shear), psi (MPa), min 600 (4.1) 400 psi (2.7 MPa), min is acceptable providing failure occurs within the glassfiber reinforced po
5、lyester (FRP) when tested after each of the following conditioning periods: . Normal: (as assemblies are prepared) . 14 days at 88 +/- 1 C (mechanical convection oven) . 14 days total water immersion at 23 +/- 2 C . 14 days at 37 +/- 1 C and 95 - 100% relative humidity . 500 h weatherometer (FRP to
6、FRP) . 240 h 5% salt spray (ASTM B 117), FRP to metal ENGINEERING MATERIAL SPECIFICATION ESB-M2G189-A Page 2 of 7 Copyright 2014, Ford Global Technologies, Inc. Test Method: Prepare overlap shear assemblies as follows: . Coat the 4 x 1 x 0.100 in (100 x 25 x 2.5 mm) thick FRP (glassfiber reinforced
7、polyester) test panels with a light wet coating of ESB-M2G190-A Adhesion Primer for Urethane Structural Adhesive. Primed panels are air dried 1 min minimum before immediate use and 16 hr max if stored before use. . Coat the 4 x 1 x .048-.060 in (100 x 25 x 1.2-1.5 mm) thick clean steel test panels w
8、ith a dry film thickness of approximately 0.0003-0.0010 in (8-25 m) with ESB-M2G197-A Adhesion Primer for Urethane Structural Adhesive (Metal to FRP), and heat cure 30 min at 150 +/- 3 C. Cool to 23 +/- 2 C before applying adhesive. . Apply a small amount of adhesive (properly weighed and mixed) to
9、the primer areas so as to effect an overlap shear bond area of 1 sq in (645 mm2) and a wet film thickness of 0.015 - 0.030 in (0.038 - 0.76 mm). (See Fig. 1). . Age the bonded assemblies for 48 hr at 23 +/- 2 C (accelerated heat curing of samples to simulate production conditions is allowable), foll
10、owed by 30 min at 150 +/- 3 C in a mechanical convection oven. Allow assemblies to cool to 23 +/- 2 C for normal adhesion and expose to environmental exposures as listed. . After exposure to the conditioning environments, the assemblies shall be allowed to return to 23 +/- 2 C for 4 h prior to testi
11、ng. . The overlap shear strength of the adhesive shall be determined by pulling the bonded assemblies in a tensile machine with a jaw separation rate of 0.5 in (13 mm)/min. 3.2 FLEXURAL (Peel) Strength, min 80 lb (670 N) (FRP to FRP Only) Failure shall occur within the 0.1 in thick FRP (glassfiber r
12、einforced polyester) adhere ends, when tested after the conditioning periods as outlined in para 3.1. Test Method: ASTM D 790) Using a 1/8 in (3.2 mm) radius loading nose and a 2 in (50.8 mm) span, test samples shall be prepared as outlined in para 3.1. The bonded assemblies shall be loaded at the r
13、ate of 2 in (50 mm)/min at the center of the 1 sq. in. (6.5 cm2) overlap bond. 3.3 COLD ADHESION (FRP to Metal Only) There shall be no evidence of cold cracking, adhesion, or cohesion failure. Test Method: . Prepare 3 typical reinforcement panels as illustrated on Fig. II. The bead application shall
14、 be 0.25 in (6 mm) diameter over wash primed (ESB-M2G190) FRP. The metal bonding surface shall be primed with ESB-M2G197 Adhesion Primer for Structural Urethane Adhesive (Metal to FRP). ENGINEERING MATERIAL SPECIFICATION ESB-M2G189-A Page 3 of 7 Copyright 2014, Ford Global Technologies, Inc. . Condi
15、tion the assemblies at 23 +/- 2 C for 48 h followed by 30 min at 150 +/- 3 C. . Test assemblies for cold adhesion in the slamming fixture as outlined in the FLTM BV 1-2 (10 cycles of 6 slams per cycle at -29 C). Retention screws, needed for the bonding operation, shall be removed before slamming. 3.
16、4 STORAGE STABILITY The materials (base resin and accelerator) shall be stored at ambient temperatures below 38 C away from all sources of heat and sunlight. Heat greatly accelerates aging. Under these storage conditions, the minimum shelf life of the material shall be 3 months. When these materials
17、 are stored at temperatures below 23 C, they shall be conditioned at room temperature prior to application. Adequate conditioning permits the material to obtain its optimum application properties. These materials are reactive with moisture which may be present in the atmosphere and, therefore, shoul
18、d be stored in tightly closed containers at all times in order to insure maximum storage stability. 3.5 NON-INTERCHANGEABILITY OF MATERIALS Only approved urethane adhesive and primers (FRP primer ESB-M2G190-A and metal primer ESB-M2G197-A) from the same production (supplier) source shall be used in
19、conjunction with one another. 3.6 QUALITY The material 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 requirem
20、ents of this specification. 5.1 CAUTION This material contains ingredients (base primer and accelerator) 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 wi
21、th alcohol followed by washing with soap and water. Excess adhesive and equipment may be cleaned prior to curing with Toluol (M14J242) or methylene chloride solvents. 5.2 HANDLING AND STORAGE The base resin of this material may react with moisture or humid air to form a crust. Care should be taken t
22、o avoid unnecessary exposure. ENGINEERING MATERIAL SPECIFICATION ESB-M2G189-A Page 4 of 7 Copyright 2014, Ford Global Technologies, Inc. 5.3 MIXING PRECAUTIONS Care should be exercised in the handling and storage of these materials. Low temperatures affect the cure rate of the adhesive and the base
23、should not be catalyzed at temperatures below 16 C. 5.4 COMPONENT PROPERTIES, Typical Base Resin Accelerator 5.4.1 Color Brown or Tan, Orange-Red or or as specified Green, or as specified 5.4.2 Viscosity, cP (mPa.s) 20,000-85,000 3,000-30,000 5.4.3 Weight Per Volume lb/gal 10-13 8-12 (kg/1) (1.20-1.
24、44) (0.96-1.20) 5.4.4 Volatiles, %, max 1 Non-Reactive (Mixed) 5.4.5 Ash, %, max 90 50 5.4.6 Mix Ratio (By Weight) 1 or 4.0 1 (By Volume) 1 or 3.5 1 5.4.7 Pot Life (after mixing) 1-15 min (dependent on accelerator used) 5.4.8 Shelf Life (unmixed) 6 months 6 months The component properties outlined i
25、n para 5.4 will be controlled by test methods established and found suitable by the supplier. 5.5 ADHESION - Primer System 5.5.1 Primer for Metal ESB-M2G197-A Adhesion Primer for Urethane Structural Adhesive 5.5.2 Primer for FRP ESB-M2G190-A Adhesion Primer for Urethane Structural Adhesive ENGINEERI
26、NG MATERIAL SPECIFICATION ESB-M2G189-A Page 5 of 7 Copyright 2014, Ford Global Technologies, Inc. 5.5.3 FRP Substrates ESB-M3D105-B Type I ESB-M3D105-B Type II Sheet Molding Compound (SMC) to Sheet Molding Compound (SMC) Sheet Molding Compound (SMC) to Low Profile Wet (LPW) Low Profile Wet (LPW) to Low Profile Wet (LPW) ENGINEERING MATERIAL SPECIFICATION ESB-M2G189-A Page 6 of 7 Copyright 2014, Ford Global Technologies, Inc. ENGINEERING MATERIAL SPECIFICATION ESB-M2G189-A Page 7 of 7 Copyright 2014, Ford Global Technologies, Inc.
