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Metal adhesives

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Master Bond Supreme 34CA Two component epoxy system
Categories: Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced

Material Notes:
  • Very high temperature resistance
  • Robust resistance to aggressive chemicals
  • Very long open time
  • Good flow properties
Master Bond Supreme 34CA is a two component epoxy system specially formulated to resist higher temperatures and aggressive chemicals. This lower viscosity material has an easy to use 100 to 50 mix ratio by weight. It will not cure at room temperature and it has an exceptionally long working life, far exceeding 24 hours. Although, it is slightly exothermic, it can be cured in sections exceeding 1/4 inch thick. Particular attention should be paid to the curing schedule. The main attribute of Supreme 34CA is as a high temperature resistant structural type adhesive, although it has many other outstanding properties as well. In this context, it can be used for filament winding, tooling compounds along with bonding composites and pultruded structures. As mentioned previously, it bonds well to a wide variety of substrates, including metals, composites, glass and many plastics. Supreme 34CA is highly resistant to water, oils, acids, bases and solvents. It has top notch physical strength properties and is a superior electrical insulator. The color of Part A is black, and Part B is amber. The service temperature range for this system is -80°F to +500°F. A non-drip version is available, called Supreme 34CAND-2. Supreme 34CA is specified in many applications in aerospace, electronics, optical and specialty OEM uses.

Product Advantages:

  • Lower viscosity; very long open time
  • Superb adhesion to a wide variety of substrates
  • Ample physical strength properties
  • Terrific resistance to aggressive chemicals especially acids, bases and petroleum related
  • Commanding high temperature serviceability
  • Excellent compatibility with filament winding and bonding composites

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 1000 - 3000 cPPart B
 7000 - 20000 cPmixed
 10000 - 25000 cPPart A
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D >= 75
Tensile Strength >= 12000 psi
Tensile Modulus 450000 psi
Adhesive Bond Strength >= 2500 psilap shear, Al/Al
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+14 ohm-cm
Dielectric Constant 4.1
@Frequency 60 Hz
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 500 °F
Minimum Service Temperature, Air -80.0 °F
Glass Transition Temp, Tg 200 - 210 °C
 
Processing PropertiesOriginal ValueComments
Working Life >= 1440 minAfter mixing, 100 g batch
Shelf Life 12.0 MonthIn original unopened containers
 
Descriptive Properties
Cure schedulegel for 1 hour at 110°C followed by 2-3 hours at 125-150°C
 gel for 1 hour at 110°C followed by 2-3 hours at 125-150°C, plus a post cure at 175°C for 2-3 hours
Mixing Ratio100:50Parts A to B, by weight

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PMASTM731 / 233788

Metal adhesives

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