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Master Bond EP21NDFG Two component epoxy compound for high performance applications

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 EP21NDFG Two component epoxy compound for high performance applications.pdf
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Material Notes:
Product Description: Master Bond EP21NDFG is a two component, room temperature curing epoxy adhesive featuring outstanding physical properties, easy processing and a non-drip, paste-like consistency. This system has a non-critical one to one mix ratio by weight or volume. EP21NDFG has the unusual characteristic of being able to adjust the properties of the cured system by altering the mix ratio. Adding more of Part A (e.g. 2:1 mix ratio) will give a more rigid cure, while adding more of Part B (e.g. 1:2 mix ratio) gives a more forgiving cure. EP21NDFG produces high strength, durable bonds which hold up well to thermal cycling and resist many chemicals including water, oils, fuels, acids, bases and salts. It bonds well to a variety of substrates including metals, composites, glass, ceramics and many types of rubbers and plastics. Once cured, EP21NDFG is an excellent electrical insulator. It is serviceable over the wide temperature range of -60°F to +250°F. The color of both Parts A and Part B is amber, although, a wide variety of additional color choices are also available. EP21NDFG is primarily used in food equipment applications where there is an indirect exposure to food and related products. Product Advantages: Convenient mixing: non-critical one to one mix ratio by weight or volume Variable mix ratio feature allows adjusting the type of cure (mentioned above) Easily applied; adhesive spreads smoothly; non-drip application feature Ambient temperature cures or fast elevated temperature cures as required High bonding strength to a wide variety of substrates. Lower shrinkage upon cure Excellent dimensional stability with good electrical insulation properties Meets FDA Section 175.105 for indirect food applicationsInformation provided by MasterBond®
Mechanical Properties Metric English Comments
Hardness, Shore D >= 70
>= 70
Tensile Strength at Break >= 62.1 MPa

@Temperature 23.9 °C
>= 9000 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 2.92

@Frequency 60.0 Hz,
Temperature 25.0 °C
2.92

@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
720 - 1440 min

@Temperature 23.9 °C
12.0 - 24.0 hour

@Temperature 75.0 °F
plus 2 hrs at 150-200°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 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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