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Creative Materials F940A/B-187

F940 is a black, flame-out, two component, epoxy potting and encapsulating compound. Product is designed to release entrapped air rapidly during cure, resulting in a smooth, pinhole free surface. Use B-187 when long pot life and higher heat resistance is desired.

Features

  • Low viscosity with long pot life.
  • Requires mild heat cure.

Product Type: 2K (2 component) Sealant, Epoxy Sealant, Potting Compound

Cure Method: Heat Cure

Chemical Family: Epoxy & Epoxy Derivatives

    Knowde Enhanced TDS

    Identification & Functionality

    Features & Benefits

    Applications & Uses

    Cure Method
    Mixing Instructions

    Premix Part A in original container prior to adding curing agent. Add Part B to Part A and mix until uniform. Use with Part B-187 when high temperature performance is desired. NOTE: It is not unusual for crystallization of the B-187 to occur. Warm to 40-45°C in a water bath to return the material to it's original viscosity. The crystallization of the catalyst does not effect the performance of the product in any way. To prevent recrystallization, store the B-187 at temperatures between 35-45°C.

    Properties

    Color
    Appearance
    Amber, Black
    Component A
    ValueUnitsTest Method / Conditions
    Viscosity7500cps-
    Mix Ratio (by weight)100--
    Typical Properties
    ValueUnitsTest Method / Conditions
    Pot Life4 hours--
    Pot Lifemin. 4 Hrs--
    Viscosity3000cps-
    Component B
    ValueUnitsTest Method / Conditions
    Viscosity500cps-
    Mix Ratio (by weight)3--
    Typical Cured Properties
    ValueUnitsTest Method / Conditions
    Specific Gravity1.51--
    Hardness85Shore D-
    Coefficient of Thermal Expansion22in/in °C x 10^-6-
    Thermal Conduction1.28W/m-K-
    Cure Shrinkage0.189%-
    Heat Distortion Temperature115°C-
    Tensile Strength9600psi-
    Water Absorptionmax. 0.22%-
    Dielectric Strength475volts/mil-
    Volume Resistivity1x 10^15Ω - cm-
    Power Factor (60 HZ)0.028--
    Dielectric Constant (60 HZ)4.3--

    Regulatory & Compliance

    Certifications & Compliance

    Storage & Handling

    Curing Instructions
    Handling Properties: 30 mins @ 80°C
    Full Cure: 1 hr @ 80°C or
     

    30 mins @ 100°C