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Master Bond EP21AOLV-1 Two Part, Room Temperature Curing Epoxy System

Category Polymer , Thermoset , Epoxy , Epoxy Encapsulant, Unreinforced
Manufacturer Master Bond Inc.
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Master Bond EP21AOLV-1 Two Part, Room Temperature Curing Epoxy System.pdf
Price EMAIL US    sales@lookpolymers.com
  Online Service   lookpolymers   27660005
Material Notes:
Product Description: Master Bond Polymer Adhesive EP21AOLV-1 is a two component, thermally conductive, electrically isolating epoxy adhesive, sealant and coating. This versatile system will adhere to a wide variety of substrates including metals, glass, ceramics and many plastics. While its primary use is for potting and encapsulating, it is also an excellent adhesive that forms high strength bonds. EP21AOLV-1 resists a wide range of chemicals including water, oils, fuels and many solvents. The service temperature range for this epoxy is -60°F to +250°F. Other properties include a low coefficient of expansion, excellent dimensional stability, a high modulus and compressive strength. These physical properties combined with good thermal conductivity and electrical insulation make EP21AOLV-1 good for a variety of applications. When used as an encapsulating system, it has convenient handling with a one to one mix ratio by weight or volume. Its ability to flow readily and smoothly is another benefit. The color of Part A is gray; the color of Part B is off-white. EP21AOLV-1 is widely used in the electronic, electro-optical and related industries where excellent heat transfer and electrical insulation are required. Product Advantages: Convenient mixing: non-critical equal weight or volume ratio. Easy application: readily flowable when potting; brushable when bonding. Versatile cure schedules: ambient temperature cures or fast elevated temperature cures. High bonding strength to a wide variety of substrates. Low coefficient of expansion, low shrinkage and good dimensional stability. Great durability, thermal shock and chemical resistance.Thermal conductivity, over 10 BTU•in/ft2 •hr•°F. Excellent electrical insulation properties. Long working life.Information provided by MasterBond®
Physical Properties Metric English Comments
Viscosity 4000 - 8000 cP
4000 - 8000 cP
Part A
50000 - 65000 cP
50000 - 65000 cP
Part B
Mechanical Properties Metric English Comments
Hardness, Shore D >= 80
>= 80
Tensile Strength at Break >= 34.5 MPa

@Temperature 23.9 °C
>= 5000 psi

@Temperature 75.0 °F
Tensile Modulus >= 3.10 GPa

@Temperature 23.9 °C
>= 450 ksi

@Temperature 75.0 °F
Compressive Strength >= 96.5 MPa
>= 14000 psi
Shear Strength >= 7.58 MPa
>= 1100 psi
Al/Al, bond
Thermal Properties Metric English Comments
CTE, linear 22.0 - 25.0 µm/m-°C
12.2 - 13.9 µin/in-°F
Thermal Conductivity >= 1.44 W/m-K
>= 10.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 121 °C
250 °F
Minimum Service Temperature, Air -51.1 °C
-60.0 °F
Electrical Properties Metric English Comments
Volume Resistivity >= 1.00e+13 ohm-cm
>= 1.00e+13 ohm-cm
Dielectric Constant 4.62

@Temperature 25.0 °C
4.62

@Temperature 77.0 °F
Dielectric Strength >= 15.7 kV/mm

@Thickness 3.17 mm
>= 400 kV/in

@Thickness 0.125 in
Dissipation Factor 0.0080

@Frequency 60.0 Hz,
Temperature 25.0 °C
0.0080

@Frequency 60.0 Hz,
Temperature 77.0 °F
Processing Properties Metric English Comments
Cure Time 120 - 180 min

@Temperature 93.3 °C
2.00 - 3.00 hour

@Temperature 200 °F
2880 - 4320 min

@Temperature 23.9 °C
48.0 - 72.0 hour

@Temperature 75.0 °F
Pot Life 90 - 120 min
90 - 120 min
100 gram mass
Shelf Life 6.00 Month

@Temperature 23.9 °C
6.00 Month

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