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Electrical insulation varnishes for winding wires
Varnishes for the electrical steel
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    Varnishes for the electrical steel
    Product SV 500

    Product SV 500

    SV 500 is a C5, insulating varnish for the electrical steel. Due to this varnish belonging to C5 class, it does not only provide the insulation, but also increases the punchability and weldability of the metal. In addition, SV 500 is chromium free and the thickness of the coating can be as low as 1 micron.

    Typical properties of the 2-micron coating:

    Parameters
    Values
    Form
    Emulsion
    Colour
    White/Grey
    pH
    2.16
    Specific gravity at 25C (gm/cc)
    1.25
    Solid content (%)
    34.25
    Viscosity by B4 Cup at 27C (sec)
    67
    Curing Test
    Pass
    MEK Rub Test
    Pass
    Chemical resistance (5% CuSO4 ,5 min)
    Pass
    Pencil Hardness 9H
    Pass
    Bend Test
    Pass
    Insulation Resistance (1-3m)
    >30.1-198 Ohm.cm2/lam
    Punchability
    2-3 times Bright Steel
    Weldability
    Good
    SRA
    810-820C
    Thickness in microns
    1 - 3