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Metal adhesives

Master Bond EP30 Optically Clear, Low Viscosity Two Component Epoxy
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: Key Features:
  • Superb optical clarity
  • Low shrinkage upon curing
  • Very low viscosity
  • High bonding strength to a wide variety of substrates
Product Description: Master Bond EP30 is a low viscosity, two component epoxy system for high performance bonding, coating, sealing, potting and encapsulation. It readily cures at room temperature or more rapidly at elevated temperatures, and has a four to one mix ratio by weight. This adhesive is 100% reactive and does not contain any solvents or diluents. EP30 has outstanding physical strength properties along with highly reliable electrical insulation characteristics. This dimensionally stable system has very low linear shrinkage after cure, less than 0.003 in./in. EP30 possesses very good optical clarity along with superior light transmission when compared to many other epoxies. EP30 bonds well to a variety of substrates including metals, glass, and ceramics, as well as many plastics and rubber materials. EP30 forms high strength, rigid bonds that resist chemicals including water, oil, acids, bases and many solvents. Its low viscosity enables this system to be used for special gap filling applications where space is limited. Master Bond EP30 is widely used in electronic, electrical, optical, fiber-optic, aerospace and related industries, particularly where low viscosity and optical clarity are desirable.

Product Advantages:

  • Convenient mixing: easy to use mix ratio—four to one by weight
  • Easy application: only contact pressure required while curing; adhesive spreads readily
  • Versatile cure schedules: ambient temperature cures or faster at higher temperatures
  • Low viscosity; superb for smaller gap filling Applications
  • Exceptional physical strength and electrical insulation properties

Information provided by Master Bond Inc.

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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Physical PropertiesMetricEnglishComments
Viscosity 280 - 500 cP280 - 500 cPPart B
 400 - 900 cP400 - 900 cPPart A
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D >= 75>= 75
Tensile Strength >= 65.5 MPa>= 9500 psi
Tensile Modulus >= 2.76 GPa>= 400 ksi
Adhesive Bond Strength >= 20.7 MPa>= 3000 psiTensile lap, Aluminum to Aluminum
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+15 ohm-cm>= 1.00e+15 ohm-cm
Dielectric Constant  3.35
@Frequency 1000 Hz
3.35
@Frequency 1000 Hz
 3.55
@Frequency 60 Hz
3.55
@Frequency 60 Hz
Dielectric Strength 17.3 kV/mm
@Thickness 3.17 mm
440 kV/in
@Thickness 0.125 in
Dissipation Factor  0.0050
@Frequency 60 Hz
0.0050
@Frequency 60 Hz
 0.0060
@Frequency 1000 Hz
0.0060
@Frequency 1000 Hz
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 121 °C250 °F
Minimum Service Temperature, Air -51.1 °C-60.0 °F
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.571.57
 
Processing PropertiesMetricEnglishComments
Cure Time  120 - 180 min
@Temperature 93.3 °C
2.00 - 3.00 hour
@Temperature 200 °F
 1440 - 2880 min
@Temperature 23.9 °C
24.0 - 48.0 hour
@Temperature 75.0 °F
Working Life 25.0 - 35.0 min25.0 - 35.0 minAfter mixing, 100 g batch
Shelf Life 12.0 Month
@Temperature <=23.9 °C
12.0 Month
@Temperature <=75.0 °F
in original, unopened containers
 
Descriptive Properties
Mixing Ratio4:1 by weightParts A to B

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