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Metal adhesives

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Tra-Con Tra-Bond 2202 Low Viscosity/High Temperature Epoxy Adhesive
Categories: Polymer; Adhesive; Thermoset; Epoxy

Material Notes: TRA-BOND 2202 is a low viscosity, high temperature cure epoxy resin system developed for rigid laminating, filament winding, potting and bonding applications where a clear, almost transparent adhesive system with good mechanical and electrical properties plus good heat resistance is required. This all liquid system has a long pot life and is easily mixed and handled at room temperature, however a final elevated temperature cure is REQUIRED for the complete development of its superior properties. TRA-BOND 2202 bonds to metals, glass, ceramics and other high temperature resistant products. Fully cured TRA-BOND 2202 is a strong, durable electrical insulator, and it provides excellent resistance to weather, water, vapors and gases, most petroleum products and solvents, salts, mild acids and alkalis, and many other organic and inorganic compounds. An additional post-cure of 4 hours at 145°C is recommended when application temperatures higher than 145°C are anticipated.

Information provided by Tra-Con Inc.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.21 g/ccMixed
Solids Content 100 %Reactive Solids Content
Viscosity 2200 cP
@Temperature 25.0 °C
After mixing
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 87
Adhesive Bond Strength 3000 psiLap shear, alum to alum, cured 8 hrs
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 7.20e+15 ohm-cm
 5.10e+12 ohm-cm
@Temperature 150 °C
Dielectric Constant 3.4
@Frequency 1000 Hz
Dielectric Strength 380 V/mil
Dissipation Factor 0.010
@Frequency 1000 Hz
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 175 °C
Minimum Service Temperature, Air -60.0 °C
Glass Transition Temp, Tg 132 °CUltimate Tg
 
Optical PropertiesOriginal ValueComments
Transmission, Visible 90 %transparent; thickness not quantified
 
Processing PropertiesOriginal ValueComments
Cure Time 6.00 hour2 hrs @ 65°C + 4 hrs @ 130°C
 10.0 hour2 hrs @ 65°C + 8 hrs @ 115°C
Pot Life 14400 min(10 days)
 
Descriptive Properties
Color Clear
Mix Ratio, parts by weight100/76Resin/Hardener
Thixotropic Index 1.15 rpm/50 rpm

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PTRAC057 / 70985

Metal adhesives

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