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
  

Master Bond adhesives

Master Bond EP21TPFL-1AO Two Part, Flexible, Lower Viscosity Epoxy Polysulfide System
Categories: Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced; Polysulfide Sealant/Adhesive

Material Notes: Product Description: Master Bond EP21TPFL-1AO is a two component, low viscosity epoxy polysulfide for high performance bonding, sealing, coating and casting offering thermal conductivity, electrical insulation and excellent flexibility. This system has superior resistance to a wide array of chemicals including fuels, oils, water, gasoline, hydrocarbons and hydraulic fluids. It has been formulated to cure readily at ambient and more quickly at elevated temperatures. This system has a non-critical mix ratio of two to three, by weight or volume. This compound is 100% reactive and does not emit any solvents or volatiles during curing. This material is very special because of its thermal conductivity and electrical insulation properties along with its flexibility and chemical resistance. Its excellent flexibility permits this compound to be utilized in situations involving rigorous thermal cycling as well as thermal and mechanical shocks. Its lower viscosity and flow properties make it well suited for many potting and encapsulation applications. It has very good adhesion to metals, ceramics, glass, and many rubbers and plastics. The service temperature range is -60°F to +250°F. The color of Part A is black while Part B is off-white. EP21TPFL-1AO can be used in a wide range of different applications in the electronic, aerospace and OEM industries.

Product Advantages:

  • Convenient mixing: non-critical two to three mix ratio by weight or volume.
  • Lower viscosity enhances ease of application, compound flows evenly and smoothly; ideal for potting.
  • Versatile cure schedules—ambient temperature or fast elevated temperature cures as desired.
  • 100% reactive—no volatiles emitted during curing.
  • Outstanding flexibility with superior resistance to thermal cycling.
  • Excellent chemical resistance to extended exposure to fuels, oils, water and other chemicals.
  • Thermally conductive and electrically isolative.

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.

 
Physical PropertiesMetricEnglishComments
Viscosity 14000 - 28000 cP14000 - 28000 cPPart B
 15000 - 30000 cP15000 - 30000 cPPart A
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 70 - 9070 - 90
Tensile Strength at Break 3.45 MPa500 psi
Elongation at Break >= 100 %>= 100 %
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+14 ohm-cm>= 1.00e+14 ohm-cm
Dielectric Constant 4.4
@Frequency 60 Hz,
Temperature 25.0 °C
4.4
@Frequency 60 Hz,
Temperature 77.0 °F
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 121 °C250 °F
Minimum Service Temperature, Air -51.1 °C-60.0 °F
 
Processing PropertiesMetricEnglishComments
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 - 120 min90 - 120 min100 gram mass
Shelf Life 12.0 Month
@Temperature 23.9 °C
12.0 Month
@Temperature 75.0 °F
in original unopened containers
 
Descriptive Properties
Mixing Ratio (A to B)2:3by 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 view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
Master Bond EP21TP-2 Two Component Polysulfide Epoxy Adhesive and Sealant
Tra-Con Tra-Bond 927-1 Polysulfide Adhesive
Abatron AboSeal 8104-11 Polysulfide, Thixotropic Sealant and Caulk
Abatron AboSeal 8104-10 Polysulfide, Thixotropic or Self-Leveling Sealant and Caulk
Abatron AboCast/AboCure 8007-2 High-Grade Polysulfide-Epoxy Flexible Membrane Sealant and Joint-Filler

PMASTB326 / 149573

Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at webmaster@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.