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  • Ningbo Tonyhoo Electrical Technology Co., LTD
    Products
    High voltage cable sealant
    Environmentally friendly high voltage cable sealant J-499

    Product overview

    This product is a polyurethane two-component reactive sealant: it is composed of resin (A component) and curing agent (B component), and after fully mixing the sealant (tan curing agent and resin) when used, it is injected into the shell cavity from the glue injection port and completely cured.

    This product doesnt contain solvents. It has the characteristics of minimal shrinkage, good permeation resistance, high volume resistivity, good insulation after cured. The product is constructed under room temperature and operated conveniently. It effectively combines waterproof property and insulation, and becomes a special material for sealing, fireproof and flame retardant of underground high-voltage cable joints.



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    Product details

    Performance parameters

    Base material

    Two-component polyurethane

    Color

    Resin

    Curing agent

    Light yellow

    Tan

    Applicable voltage level

    110kV-500kV

    Hardness

    60A±10

    Solidification time of sealant

    75'/23

    Volume resistivity

    >1x1011 Ω

    Breakdown strength

    >15 kV/mm

    Elongation at break

    >50%

    Tensile strength

    ≥5N/mm²)

    Thermal conductivity rate

    0.2W/M.K