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Master Bond EP46HT Epoxy Adhesive for Structural Bonding

Category Polymer , Adhesive , Thermoset , Epoxy , Epoxy Adhesive
Manufacturer Master Bond Inc.
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Master Bond EP46HT Epoxy Adhesive for Structural Bonding.pdf
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Material Notes:
Description: Master Bond System EP46HT is a newly formulated two component high performance heat resistant epoxy resin system with excellent mechanical strength and chemically resistant properties for structural bonding, sealing and casting. This low viscosity polymer composition offers the convenience of a long pot life at ambient temperatures for ease of processing and cures readily at elevated temperatures. It is 100% reactive and does not contain any volatiles. The cured EP46HT epoxy polymer features outstanding heat resistance and exceptionally good long term high temperature structural strength retention even after prolonged exposure to moisture, aggressive chemicals and other severe environmental conditions. Master Bond Polymer System EP46HT is formulated for use by mixing the two components with a noncritical 100/25 mix ratio by wt. and has a pot life of 12-24 hours at 75°F. A typical cure schedule comprises heating 2-3 hours at 250°F followed by an optional post cure of 2 hours at 350-400°F to achieve optimum properties. There are no solvents or diluents present in EP46HT. The color of Part A is clear, Part B is amber. A non-drip paste version called EP46HTND-2 is also available. Master Bond Polymer System EP46HT is being used in a number of applications requiring excellent retention of structural strength along with chemically resistant properties at high service temperatures. Specific uses include structural bonding, sealing, potting, casting, filament windings, and composite structures comprising glass, polyimide, and graphite fiber reinforcements. Particularly noteworthy are the excellent moisture and fuel resistance properties of the cured EP46HT material. The product exhibits outstanding electrical insulation properties. The service temperature range extends from -150°F to 500°F. The low viscosity of EP46HT allows it to be used in many potting and casting applications requiring high temperatures and/or good chemical resistance.Product Advantages: Convenient mixing: product properties relatively unaffected by small changes in mix ratio. Low viscosity, excellent system for high temperature casting & potting. High bonding strength to similar and dissimilar substrates. Good long term durability, thermal shock and chemical resistance. 100% reactive; no volatiles emitted during cure. Resists steam autoclaving, fuels, and many solvents, acids, bases. Excellent electrical insulation properties. Good physical properties even at high temperatures. Long pot life at room temperature.Information provided by MasterBond®
Physical Properties Metric English Comments
Viscosity 4000 - 6000 cP
4000 - 6000 cP
Mechanical Properties Metric English Comments
Hardness, Shore D 75 - 90
75 - 90
Tensile Strength at Break 58.6 MPa

@Temperature 149 °C
8500 psi

@Temperature 300 °F
75.8 MPa

@Temperature 23.9 °C
11000 psi

@Temperature 75.0 °F
Tensile Modulus 2.14 GPa

@Temperature 149 °C
310 ksi

@Temperature 300 °F
2.59 GPa

@Temperature 23.9 °C
375 ksi

@Temperature 75.0 °F
Flexural Strength 100 MPa
14500 psi
Shear Strength >= 8.96 MPa

@Temperature 149 °C
>= 1300 psi

@Temperature 300 °F
Tensile lap, Al to Al
>= 13.8 MPa

@Temperature 23.9 °C
>= 2000 psi

@Temperature 75.0 °F
Tensile lap, Al to Al
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 260 °C
500 °F
Minimum Service Temperature, Air -101 °C
-150 °F
Glass Transition Temp, Tg 190 °C
374 °F
Electrical Properties Metric English Comments
Volume Resistivity 1.40e+16 ohm-cm
1.40e+16 ohm-cm
Dielectric Constant 4.8

@Frequency 100 Hz
4.8

@Frequency 100 Hz
Dielectric Strength 17.1 kV/mm
435 kV/in
Dissipation Factor 0.015

@Frequency 100 Hz
0.015

@Frequency 100 Hz
Processing Properties Metric English Comments
Cure Time 120 - 180 min

@Temperature 121 °C
2.00 - 3.00 hour

@Temperature 250 °F
optional post cure 2 hours at 350-400°F
Pot Life 720 - 1440 min
720 - 1440 min
100 gram batch
Shelf Life 12.0 Month
12.0 Month
unopened containers
Descriptive Properties Value Comments
Mixing Ratio (A to B) 100/25
by weight
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