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Master Bond EP21TDCF-3 Two Component, Higher Viscosity Epoxy System

Category Polymer , Thermoset , Epoxy , Epoxy Encapsulant, Unreinforced
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 EP21TDCF-3 Two Component, Higher Viscosity Epoxy System.pdf
Price EMAIL US    sales@lookpolymers.com
  Online Service   lookpolymers   27660005
Material Notes:
Product Description: Master Bond EP21TDCF-3 is a two component epoxy for high performance bonding and sealing. It is formulated to cure rapidly at room temperature or faster at elevated temperatures. It has a non-critical mix ratio of one to one by weight or volume. The faster cure allows for a shortened fixture time. Once cured, EP21TDCF-3 has excellent toughness. This gives the system outstanding mechanical shock resistance along with superior thermal cycling capabilities—even when bonding dissimilar substrates. It has a good blend of physical properties including high shear and peel strengths. It bonds well to a wide variety of substrates, including metals, glass, ceramics and many rubbers and plastics. EP21TDCF-3 has the ability to withstand an array of chemicals, including water, fuels and oils, over the service temperature range of -100°F to +250°F. It is 100% reactive without any solvents or diluents. The hardened adhesive is an excellent electrical insulator. The color of Part A is gray and Part B is amber. EP21TDCF-3 is a versatile, exceptionally strong, user friendly system that is widely used in the OEM, aerospace, electronic, electrical and related industries. Product Advantages: Convenient mixing: non-critical equal weight or volume ratio. Easy application, higher viscosity, thixotropic system. Rapid curing at room temperature; shorter fixturing time. Bonds well to a variety of substrates. Noteworthy resistance to vibration, shock and thermal cycling. Superior shear and peel strengths. Good chemical resistance to water, fuels and oils.Information provided by MasterBond®
Mechanical Properties Metric English Comments
Hardness, Shore D 50 - 55
50 - 55
Tensile Strength at Break 51.7 MPa

@Temperature 23.9 °C
7500 psi

@Temperature 75.0 °F
Tensile Modulus 1.72 - 2.07 GPa

@Temperature 23.9 °C
250 - 300 ksi

@Temperature 75.0 °F
Shear Strength >= 13.8 MPa
>= 2000 psi
Al/Al, Bond
Peel Strength 6.14 kN/m
35.0 pli
T-peel
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 121 °C
250 °F
Minimum Service Temperature, Air -73.3 °C
-100 °F
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+14 ohm-cm
1.00e+14 ohm-cm
Dielectric Constant 3.8

@Frequency 60.0 Hz,
Temperature 25.0 °C
3.8

@Frequency 60.0 Hz,
Temperature 77.0 °F
Processing Properties Metric English Comments
Cure Time 60.0 - 120 min

@Temperature 23.9 °C
1.00 - 2.00 hour

@Temperature 75.0 °F
60.0 - 120 min

@Temperature 93.3 °C
1.00 - 2.00 hour

@Temperature 200 °F
Pot Life 15 - 25 min
15 - 25 min
100 gram mass
Shelf Life 12.0 Month

@Temperature 23.9 °C
12.0 Month

@Temperature 75.0 °F
in unopened containers
Descriptive Properties Value Comments
Mixing Ratio (A to B) 1:1
by weight or volume
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