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Master Bond EP21LVSP6 Two component epoxy for bonding, sealing, coating and encapsulating

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 EP21LVSP6 Two component epoxy for bonding, sealing, coating and encapsulating.pdf
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Material Notes:
Product Description: Master Bond EP21LVSP6 is a two component epoxy compound for high performance bonding, coating, sealing and encapsulating. It is formulated to cure at room temperature or more rapidly at elevated temperatures. It offers a very convenient one to one mix ratio, by weight or volume. EP21LVSP6 is particularly well conceived for specialty applications where the combination of a long open time, low viscosity and excellent physical properties are all vital to an application. The system also has very good chemical resistance to water, oil, fuel, acids and bases. EP21LVSP6 bonds well to a variety of substrates, including metals, composites, glass, ceramics, rubbers and plastics. It has very good physical strength properties as well as being a good electrical insulator. It has a service temperature range of -60°F to +250°F. The color of Part A is clear and Part B is amber clear. This system can be used in aerospace, electronic, electrical, optical and other specialty applications where high performance properties combined with a long pot life and low viscosity are desirable. As one would expect with this kind of system, it has very low exotherm and can be used for large castings. Product Advantages: Convenient mixing: non-critical equal weight or volume ratio Low viscosity for ease of application Exceptionally long open time High bonding strength to a wide variety of substrates Magnificent electrical insulation properties Little exotherm; suitable for large castingsInformation provided by MasterBond®
Physical Properties Metric English Comments
Viscosity 1500 - 3000 cP
1500 - 3000 cP
Part A
5000 - 8000 cP
5000 - 8000 cP
Part B
Mechanical Properties Metric English Comments
Hardness, Shore D >= 70
>= 70
Tensile Strength at Break >= 48.3 MPa

@Temperature 23.9 °C
>= 7000 psi

@Temperature 75.0 °F
Shear Strength >= 17.2 MPa
>= 2500 psi
Al/Al, Tensile lap
Thermal Properties Metric English Comments
CTE, linear 50.0 - 55.0 µm/m-°C
27.8 - 30.6 µin/in-°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+14 ohm-cm
>= 1.00e+14 ohm-cm
Dielectric Constant 2.8

@Frequency 60.0 Hz,
Temperature 25.0 °C
2.8

@Frequency 60.0 Hz,
Temperature 77.0 °F
Dielectric Strength 17.7 kV/mm

@Thickness 3.17 mm
450 kV/in

@Thickness 0.125 in
Processing Properties Metric English Comments
Cure Time 4320 - 14400 min

@Temperature 93.3 °C
72.0 - 240 hour

@Temperature 200 °F
4320 - 18000 min

@Temperature 23.9 °C
72.0 - 300 hour

@Temperature 75.0 °F
Pot Life 3.0 - 5.0 min
3.0 - 5.0 min
100 gram mass
Shelf Life 12.0 Month

@Temperature 23.9 °C
12.0 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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