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Master Bond EP21FRNS-2 Two Component, Flame Resistant Epoxy System

Category Polymer , Thermoset , Epoxy , Epoxy Encapsulant, Unreinforced , Epoxy, Cast, 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 EP21FRNS-2 Two Component, Flame Resistant Epoxy System.pdf
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Material Notes:
Master Bond Polymer System EP21FRNS-2 is a two component, room temperature curing, flame retardant compound for potting, encapsulating and casting. Particularly noteworthy are its low smoke generation and that it contains a non-halogenated filler. It has a convenient one to one mix ratio by weight. EP21FRNS-2 offers exceptional durability, toughness and strength. It is remarkably resistant to thermal cycling and many chemicals including water, fuels, lubricants, acids, among others. As per the UL 94V.0 specification, this system is serviceable over the wide temperature range of -51°C to 90°C. It bonds well to metals, glass, ceramics and many plastics.
Physical Properties Metric English Comments
Viscosity 30000 - 45000 cP
30000 - 45000 cP
Part B
40000 - 70000 cP
40000 - 70000 cP
Part A
Mechanical Properties Metric English Comments
Hardness, Shore D >= 75
>= 75
Tensile Strength >= 20.7 MPa
>= 3000 psi
Adhesive Bond Strength >= 8.27 MPa
>= 1200 psi
shear, Al/Al
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 32.2 °C
90.0 °F
Minimum Service Temperature, Air -46.1 °C
-51.0 °F
Electrical Properties Metric English Comments
Dielectric Constant 4.5

@Frequency 60.0 Hz
4.5

@Frequency 60.0 Hz
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 - 150 min
90 - 150 min
100 grams
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
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