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Master Bond EP30M4 Chemically Resistant Two Component 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 EP30M4 Chemically Resistant Two Component Epoxy System.pdf
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Material Notes:
Master Bond Polymer System EP30M4 is a two component epoxy system for high performance bonding, sealing and encapsulation. This system features a forgiving 100 to 60 mix ratio by weight. EP30M4 resists water, acids, bases, fuels and oils, along with many aggressive solvents. Some of the potent chemicals it can resist include skydrol, xylene, 70% sulfuric acid, 98% sulfuric acid, 50% sodium hydroxide and bleach.
Physical Properties Metric English Comments
Viscosity 350 - 700 cP
350 - 700 cP
Part B
55000 - 110000 cP
55000 - 110000 cP
Part A
Mechanical Properties Metric English Comments
Hardness, Shore D 75 - 85
75 - 85
Tensile Strength >= 48.3 MPa
>= 7000 psi
Tensile Modulus 2.41 - 2.76 GPa
350 - 400 ksi
Compressive Strength 68.9 MPa
10000 psi
Adhesive Bond Strength >= 13.8 MPa
>= 2000 psi
Shear Al/Al
Thermal Properties Metric English Comments
CTE, linear 45.0 - 50.0 µm/m-°C
25.0 - 27.8 µin/in-°F
Maximum Service Temperature, Air 149 °C
300 °F
Minimum Service Temperature, Air -62.2 °C
-80.0 °F
Electrical Properties Metric English Comments
Volume Resistivity >= 1.00e+14 ohm-cm
>= 1.00e+14 ohm-cm
Dielectric Constant 3.71

@Frequency 60.0 Hz
3.71

@Frequency 60.0 Hz
Processing Properties Metric English Comments
Cure Time 120 - 180 min

@Temperature 23.9 °C
2.00 - 3.00 hour

@Temperature 75.0 °F
120 - 180 min

@Temperature 93.3 °C
2.00 - 3.00 hour

@Temperature 200 °F
Pot Life 45 - 75 min
45 - 75 min
100 gram mass
Shelf Life 12.0 Month
12.0 Month
in original unopened containers
Descriptive Properties Value Comments
Chemical Resistance 10% Acetic Acid
Not Recommended after 1 year immersion
5% Acetic Acid
Fair after 1 year immersion
50% Sodium Hydroxide
Excellent after 1 year immersion
70% Sulfuric Acid
Excellent after 1 year immersion
98% Sulfuric Acid
Excellent after 1 year immersion
DI Water
Excellent after 1 year immersion
Ethanol
Good after 1 year immersion
MEK
Not Recommended after 1 year immersion
Skydrol
Excellent after 1 year immersion
Toluene
Not Recommended after 1 year immersion
Trichloroethane
Excellent after 1 year immersion
Xylene
Excellent after 1 year immersion
Mixing Ratio (A to B) 100:60
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