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Chemically Resistant adhesives

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Master Bond EP30AOHT Dimensionally Stable, Two Component Epoxy
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: Description: Master Bond Polymer System EP30AOHT is a two component epoxy resin system for high performance bonding, potting, sealing and coating, formulated to cure at room temperature or more rapidly at elevated temperatures. It has a ten to one (10:1) mix ratio by weight. EP30AOHT has an attractive balance of performance properties including high thermal conductivity, excellent electrical insulation characteristics and dimensional stability, as well as a good physical strength profile. The system has excellent flow properties making it ideal as a thermally conductive, electrically insulating potting epoxy. EP30AOHT is also an adhesive/sealant forming durable rigid bonds that are resistant to thermal cycling and chemicals including water, oil and most solvents, over the wide temperature range of -60°F to +400°F. The thermal expansion coefficient is exceptionally low: 22-25 ppm/°C. Color of Part A is of f white, Part B is clear. Master Bond EP30AOHT is widely used in the electronic, electrical, computer and chemical industries where electrical insulation and environmental protection are required and heat transfer must be maintained.

Product Advantages:

  • Easy application: adhesive spreads or pours evenly and smoothly.
  • Versatile cure schedules: ambient temperature cures or fast elevated temperature cures as required.
  • High bond strength to a wide variety of substrates; excellent adhesive properties.
  • High thermal conductivity with exceptional electrical insulation properties.
  • Low thermal expansion coefficient; superior dimensional stability.
  • Good physical strength characteristics; especially high compressive strength.
  • Excellent flowability; suitable for potting and casting.
  • High temperature resistance; serviceable to 400°F.

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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Physical PropertiesOriginal ValueComments
Viscosity 280 - 500 cPPart B
 380000 - 430000 cPPart A
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 90
Tensile Strength at Break >= 7500 psi
Compressive Strength >= 20000 psi
Shear Strength >= 1200 psiTensile, Al to Al
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+14 ohm-cm
Dielectric Constant 4.0
@Frequency 1e+6 Hz,
Temperature 25.0 °C
 4.3
@Frequency 1000 Hz,
Temperature 25.0 °C
 4.5
@Frequency 60 Hz,
Temperature 25.0 °C
Dielectric Strength >= 400 V/mil
@Thickness 3.17 mm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 22.0 - 25.0 µm/m-°C
Thermal Conductivity 9.00 - 10.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 400 °F
Minimum Service Temperature, Air -60.0 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 1.00 - 2.00 hour
@Temperature 93.3 °C
 24.0 - 48.0 hour
@Temperature 23.9 °C
Pot Life 30 - 45 min100 gram batch
Shelf Life 6.00 Month
@Temperature 23.9 °C
in original unopened container
 
Descriptive Properties
Mixing Ratio (A to B)10:1by weight

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PMASTB372 / 149619

Chemically Resistant adhesives

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