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Ensinger PEI
Kohesi Bond KB 1631 FR-2 Two component, flame retardant epoxy for potting and encapsulating
Categories: Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced

Material Notes: Product Highlights:
  • Can pass UL94V-0 flame retardant test
  • Extremely low smoke generation
  • Non-halogen filler
  • Room temperature cure
  • Convenient mix ratio of 1:1 by weight
  • Excellent resistance to fuels and water
Kohesi Bond KB 1631 FR-2 is a two component, room temperature curing epoxy system. This flame retardant epoxy generates low smoke and contains a non-halogenated filler. Although KB 1631 FR-2 cures hard at room temperature, the optimum cure schedule would be an overnight room temperature set-up followed by an addition of heat at 90°C for 2 - 3 hours. KB 1631 FR-2 offers an extensive service temperature range of -51°C to +90°C, as per UL 94V-0 specification. The flow properties make it ideal for use in potting and encapsulation applications. In addition to ease of application, KB 1631 FR-2 adheres well to a wide variety of substrates including metals, ceramics, most plastics and glass. It provides superior mechanical strength properties and dimensional stability. KB 1631 FR-2 offers phenomenal electrical insulation. It also offers excellent chemical resistance to a variety of fuels, oils, lubricants and water. Part A has a black color and Part B has an off white color. Also, it has a very convenient 1:1 mix ratio by weight. With a combination of Excellent performance, ease of use and excellent flame retardant properties, KB 1631 FR-2 is widely used in electronics , microelectronics, aerospace and various OEM applications.

Typical Applications:

  • Potting
  • Encapsulation
  • Casting

Information provided by Kohesi Bond Custom Engineered Adhesives

Vendors:
Available Properties
  • Viscosity, Part B
  • Viscosity, Part A
  • Hardness, Shore D
  • Tensile Strength
  • Adhesive Bond Strength, Tensile Lap Shear, Al/Al
  • Dielectric Constant
  • CTE, linear
  • Maximum Service Temperature, Air
  • Minimum Service Temperature, Air
  • Flammability, UL94
  • Cure Time, Option 2
  • Cure Time, Optimum Cure: overnight at 23°C plus 2 - 3 hours at 90°C
  • Cure Time, Option 1
  • Working Life, 100 g of mixed epoxy
  • Shelf Life, in original unopened containers
  
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Category Notes
Plastic

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