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Creative Materials 128-21C

128-21C is a jet or syringe dispensable, thermally conductive, electrically insulating, pre-catalyzed epoxy adhesive. This system features excellent thermal stability, outstanding chemical resistance and excellent high temperature properties. Unlike conventional thermally conductive epoxy adhesives, 128-21C is flexible and can absorb stress when bonding mismatched CTE substrates. Applications include die attachment, printed circuit board fabrication, advanced material composites, LED attachment and heat sink bonding. 128-21C is a version of 125-31C optimized for jet dispensing.

Features

  • Low stress thermally highly thermally conductive epoxy adhesive

Product Type: 1K (1 component) Adhesive, Conductive Adhesive, Epoxy Adhesive

Application Method: Injection

Chemical Family: Epoxy & Epoxy Derivatives

    Knowde Enhanced TDS

    Identification & Functionality

    Features & Benefits

    Applications & Uses

    Application Method

    Properties

    Typical Properties
    ValueUnitsTest Method / Conditions
    Pot Life4 days
    Conductivity3.1W/mK
    Viscosity (10 s-1)135000cps
    Thixotropic lIndex (1/10 s-1)min. 2.5
    FillerNitride blend
    Volume Resistivitymax. 1X 10^16Q-cm
    Useful Temperature Range-55 to 230ºC
    Thermal StabilityGood to +325°C
    Lap Shear Strength1800psi
    Glass Transition Temperature (TMA)92°C
    Coefficient of Thermal Expansion below Tg61ppm/°C
    Coefficient of Thermal Expansion above Tg209ppm/°C
    Thermal Conductivity3.1W/m-K

    Regulatory & Compliance

    Certifications & Compliance

    Safety & Health

    Safety & Handling
    • Use with adequate ventilation.
    • Keep away from sparks and open flames.
    • Avoid prolonged contact with skin and breathing of vapors.
    • Wash with soap and water to remove from skin.

    Storage & Handling

    Shelf Life
    3 months at -10°C, 4 days at 25°C, 6 months at -40°C
    Suggested Handling And Curing Instructions

    Material is ready to use as received. If frozen remove product from freezer and allow material to warm to room temperature before opening container. Good results are obtained when the product is cured at one of the following schedules but longer times and higher temperatures will always provide improved properties.

    60 min. 100°C
    15 min. 120°C
    5 min. 150°C
    45 sec. 175°C