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Master Bond EP21NDFG Two component epoxy compound for high performance applications
Categories: Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced

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 applications

Information provided by MasterBond®

Vendors: Master Bond is a leading manufacturer of adhesives, sealants, coatings and potting compounds. Master Bond’s vast product line consists of over 3,000 epoxy, polyurethane, silicone, cyanoacrylate and latex adhesives that vary in viscosity, cure speed, strength, chemical resistance, electrical properties, etc. Our custom adhesives offer design flexibility and provide excellent bonding performance. Visit www.masterbond.com.

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Mechanical PropertiesOriginal ValueComments
Hardness, Shore D >= 70
Tensile Strength at Break >= 9000 psi
@Temperature 23.9 °C
Shear Strength >= 2500 psiAl/Al, Tensile lap
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+14 ohm-cm
Dielectric Constant 2.92
@Frequency 60 Hz,
Temperature 25.0 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 50.0 - 55.0 µm/m-°C
Maximum Service Temperature, Air 250 °F
Minimum Service Temperature, Air -60.0 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 2.00 - 3.00 hour
@Temperature 93.3 °C
 12.0 - 24.0 hour
@Temperature 23.9 °C
plus 2 hrs at 150-200°F
 48.0 - 72.0 hour
@Temperature 23.9 °C
Pot Life 90 - 120 min100 gram mass
Shelf Life 12.0 Month
@Temperature 23.9 °C
in original unopened containers
 
Descriptive Properties
Mixing Ratio (A to B)1:1by weight or volume

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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PMASTB315 / 149562

Specialty Compounds RTP Company

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