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Elmet Technologies
Master Bond EP121CL-LO Two Component Epoxy
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive; Epoxy Encapsulant, Unreinforced; Epoxy, High Temperature

Material Notes: Key Features:
  • Low viscosity
  • Electrically insulative
  • Very long open time
  • Excellent temperature resistance and physical strength
  • Impressive optical clarity
  • Meets NASA low outgassing specifications
Product Description: Master Bond EP121CL-LO is a two component, high performance epoxy resin system that features very low viscosity and an extraordinary long open time at room temperature of at least 2-3 days. It does, however, require oven curing. The mix ratio is a relatively easy to use 100:80, by weight. A typical cure schedule is 2-3 hours at 250°F followed by 5-8 hours at 300°F with a 2 hour or longer post cure at 350°F, although, a number of variations are possible. It has excellent adhesion to a wide variety of substrates including metals, composites, glass, ceramics and many rubbers and plastics. EP121CL-LO is particularly prominent for applications involving rigorous electrical insulation properties. Another attractive feature is its excellent physical strength profile. It offers superior chemical resistance to water, oils, acids, bases, fuels and many solvents. The service temperature range is -80°F to +500°F. EP121CL-LO is a specialty type system that issued in a variety of aerospace, electronic and OEM type applications.

Product Advantages:

  • Low viscosity
  • Extraordinarily long open time
  • Splendid thermal stability
  • Marvelous electrical insulation properties
  • First rate physical properties
  • Great optical clarity
  • Meets NASA low outgassing

Information provided by Master Bond Inc.

Vendors:
Available Properties
  • Viscosity, Part B
  • Viscosity, mixed
  • Viscosity, Part A
  • Hardness, Shore D
  • Tensile Strength
  • Tensile Modulus
  • Compressive Strength
  • Volume Resistivity
  • Volume Resistivity
  • Volume Resistivity
  • Dielectric Constant
  • Dielectric Constant
  • Dielectric Constant
  • Dielectric Constant
  • Dielectric Constant
  • Dielectric Constant
  • Dielectric Constant
  • Dissipation Factor
  • Dissipation Factor
  • Dissipation Factor
  • CTE, linear
  • Maximum Service Temperature, Air
  • Minimum Service Temperature, Air
  • Refractive Index
  • Cure Time, followed by 5-8 hours at 300°F with a 2 hour or longer post cure at 350°F
  • Working Life, After mixing, 100 g batch
  • Shelf Life, in original, unopened containers
  
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Manufacturer Notes:
Master Bond Inc.

Category Notes
Plastic

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Rulon Bearings
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