Supreme 34AO

Toughened, two component epoxy for bonding, sealing and coating
Key Features
  • Convenient handling
  • Good temperature resistance
  • Can withstand thermal cycling
  • Thermally conductive & electrically insulative
Typical Properties
Viscosity
Part A: paste, Part B: paste
Cure Schedule
overnight at 75°F followed by 2-4 hours at 150-200°F
Hardness
80-90 Shore D
Service Temperature Range
-80°F to +425°F
Coefficient of Thermal Expansion
30-35 x 10⁻⁶ in/in/°C
Dielectric Constant
4.7
Linear Shrinkage
<0.1%
Tensile Lap Shear Strength
1,600-1,800 psi
Tensile Modulus
400,000-450,000 psi
Thermal Conductivity
9-10 BTU•in/(ft²•hr•°F) [1.30-1.44 W/(m•K)]
Volume Resistivity
>10¹⁴ ohm-cm
Supreme 34AO Two Part Epoxy
Discuss with a Specialist
(1-2 Business Day Request) Get Technical Data sheet
(Instant Email Delivery) Request Safety Data sheet
(1-2 Business Day Request)
Applications

Bonding

bonding

Sealing

sealing

Coating

Coating
Certifications

Meets EU Directive 2015/863

Packaging

Cans

Pails

Product Description

Master Bond Supreme 34AO is a two component, thermally conductive, electrically insulating epoxy system that can be used as an adhesive, sealant or coating. The mix ratio is a forgiving 100 to 70 by weight or one to one by volume. This high viscosity system cures readily in 2-3 days at ambient temperatures or more rapidly at elevated temperatures. The optimum cure schedule is overnight at room temperature followed by 2-4 hours at 150-200°F. Upon curing, Supreme 34AO has good dimensional stability along with very low shrinkage (<0.1%).

This epoxy bonds well to many different substrates including metals, composites, glass, ceramics, rubbers and plastics. It is well suited for bonding dissimilar substrates and resisting rigorous thermal cycling. Supreme 34AO has good chemical resistance to water, fuels, oils and cleaning agents. Some other noteworthy properties include a low coefficient of thermal expansion and high compressive strength. The service temperature range is from -80°F to +425°F. The color of Part A is gray and Part B is off-white. Its favorable blend of properties makes it a good candidate for specialty aerospace, electronic and OEM type applications, where the product property profile mentioned above is desirable.

Product Advantages

  • Non-critical mix ratios by weight or volume
  • Good thermal conductivity while retaining electrical insulation
  • Excellent adhesion to a wide variety of substrates
  • Very low shrinkage and high dimensional stability
  • Well suited for bonding dissimilar substrates
Discuss with a Specialist
(1-2 Business Day Request) Get Technical Data sheet
(Instant Email Delivery) Request Safety Data sheet
(1-2 Business Day Request)
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How to order

Verify Your Product Selection

With thousands of custom formulations available, our expert engineers provide personalized consultation to ensure you select the ideal adhesive. We will follow up with a product and packaging recommendation for your specific application.

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Our customer service team will follow up with a detailed quote with packaging and shipping options.

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Receive Your Material

Your adhesive will be made to order and shipped to you. Typical lead times are 10-14 business days, with rush options available for urgent orders.

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