MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 180,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
  

Metal adhesives

Master Bond EP21ND-LP Two component high performance epoxy
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: Key Features:
  • One to one mix ratio
  • Room temperature curing
  • Paste consistency
  • For bonding, sealing and coating
Master Bond EP21ND-LP is a two component, room temperature curing epoxy compound featuring outstanding physical properties, easy processing and a smooth paste consistency. This system has a non-critical one to one mix ratio by weight or volume. EP21ND-LP 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. EP21ND-LP 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, EP21ND-LP is an excellent electrical insulator. It is serviceable over the wide temperature range of -60°F to +250°F. The color of Part A is gray and Part B is amber, although, a wide variety of additional color choices are also available. This exceptionally versatile system is widely used in the electronic, electrical, computer, appliance, chemical, aerospace and OEM industries.

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; smooth paste consistency
  • Ambient temperature cures or fast elevated temperature cures as required
  • High bonding strength to a wide variety of substrates
  • Excellent dimensional stability with good electrical insulation properties
  • Lower shrinkage upon cure

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.

Click here to view all available suppliers for this material.

Please click here if you are a supplier and would like information on how to add your listing to this material.

 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 70 - 8070 - 80
Tensile Strength 41.4 - 48.3 MPa6000 - 7000 psi
Elongation at Break 10 - 20 %10 - 20 %
Tensile Modulus 2.07 - 2.41 GPa300 - 350 ksi
Compressive Strength 82.7 - 96.5 MPa12000 - 14000 psi
Adhesive Bond Strength 17.9 - 19.3 MPa2600 - 2800 psilap shear, Al/Al
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+14 ohm-cm>= 1.00e+14 ohm-cm
Dielectric Constant 2.92
@Frequency 60 Hz
2.92
@Frequency 60 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear 50.0 - 55.0 µm/m-°C27.8 - 30.6 µin/in-°F
Maximum Service Temperature, Air 121 °C250 °F
Minimum Service Temperature, Air -51.1 °C-60.0 °F
 
Processing PropertiesMetricEnglishComments
Cure Time  720 - 1440 min
@Temperature 23.9 °C
12.0 - 24.0 hour
@Temperature 75.0 °F
plus 3 hours at 150-200°F, Optimum cure schedule
 4320 - 5760 min
@Temperature 23.9 °C
72.0 - 96.0 hour
@Temperature 75.0 °F
 4320 - 5760 min
@Temperature 65.6 - 93.3 °C
72.0 - 96.0 hour
@Temperature 150 - 200 °F
Shelf Life 12.0 Month12.0 Monthin original, unopened containers
 
Descriptive Properties
Mixing Ratio1:1Parts A to B, by weight or volume
Viscositypaste

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 view all the property values for this datasheet as they were originally entered into MatWeb.

PMASTM708 / 233765

Metal adhesives

Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at info@matweb.com. We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2024 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.