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Leecast 29-192-1

1 of 8 products in this brand
LEECAST 29-192-1 is a two-part epoxy compound designed for potting electrical and electronic components. The advantages of LEECAST 29-192-1 include, good thermal shock resistance, good electrical properties, non-abrasive filler, and room temperature cure.

Polymer Name: Epoxy Resins & Compounds

Volume Resistivity: 1000000000000.0 - 1000000000000.0 Ohm-m

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    Identification & Functionality

    Plastics & Elastomers Functions
    Technologies

    Applications & Uses

    Properties

    Appearance
    Amber liquid, White liquid
    Typical Properties
    ValueUnitsTest Method / Conditions
    Hardness84Shore D
    Glass Transition Temperature58ºC
    Dielectric Strength (25ºC)400volt/mil
    Dielectric Constant (1 mHz) (25ºC)4.4
    Dissipation Factor (1 mHz) (25ºC)0.022
    Volume Resistivity (25ºC)1.0 x 10^14ohm-cm
    Thermal Conductivity1.15 x 10^3cal cm/sec/cm2/ºC
    Coefficient of Thermal Expansion (-40 – 110ºC) (in/in ºC)76.5 x 10^6
    Coefficient of Thermal Expansion (120 – 180ºC) (in/in ºC)144 x 10^6
    Viscosity (25ºC) (Part A)14500cps
    Mixed Visc (25ºC) (Part A)2300cps
    Density (PART A)12.8lbs./gal
    Viscosity (25ºC) (Part B)250cps
    Mixed Visc (25ºC) (Part B)2300cps
    Density (Part B)7.9lbs./gal
    Handling Properties
    ValueUnitsTest Method / Conditions
    Mix Ratio by volume (Part A)100
    Mix Ratio by weight (Part A)100
    Gel Time (25ºC) (100 g) (PART A)160minutes
    Mix Ratio by volume (Part B)30
    Mix Ratio by weight (Part B)19
    Gel Time (25ºC) (100 g) (PART B)160minutes

    Storage & Handling

    Handling and Mixing

    LEECAST 29-192-1 can be mixed, de-aired, poured and cured at room temperature. Measure out Part A and B and mix thoroughly, scraping the sides and bottom of the container. The final mixed color is white. For void-free castings, de-air under vacuum and cast around components.
    The gel time of LEECAST 29-192-1 depends on temperature and mass of material. Large masses and/or elevated temperatures will shorten the gel time. Cure can be accomplished at room temperature or with heat if faster cures are desired. Typical cure schedules for small masses are:
    50oC    4 – 8 hours
    80oC    1 – 2 hours

    Shelf life

    6 - 12 months