Refractory & Welding

Welding is integral part of metal fabrication industry. There is a broad spectrum of varieties of welding rods available today. Depending upon end users’ requirement different class of welding rods consisting of various mineral, metal powders and flux are available..

Excelex Manufactures CMC with unparallel viscosity characteristics and other physical properties which helps to enhance the output product.

Our Products for Refractory & Welding are:

  • Potassium Silicate Potassium silicate K-66, K-76 and K-120 grades are fully filtered and does not contain any impurities like unreacted, suspended silica etc. It does not coagulate, as it is free of sodium Silicate and other impurities, its Ionisation potential (i.e. getting more Viscous due to absorption of atmospheric Carbon dioxide) is very low. K-66, K-76 and K-120 grades are used in Welding Electrode manufacturing. K-Neutral grade is suitable for Refractory Lining Works.


    Potassium Silicate
    British Specification

    Content K-66 K-76 20.2 - 22.0
    K2O 10.75 - 11.75 12.5 - 13.5 20.2 - 22.0
    NA2O Trace Trace Trace
    SIO2 21.5 - 23.5 26.0 - 28.5 29.0 - 32.0
    Sp. Gr 1.32 - 1.34 1.37 - 1.39 1.59 - 1.61
    Chloride 0.2 Max 0.2 Max 0.2 Max


    Our Specification

    Content K-66 K-76 K-120 K-Neutral
    K2O 11.0 - 11.5 12.8 - 13.3 21.0-22.0 9.75-10.5
    NA2O Trace Trace Trace Trace
    NA2O 22.0 - 23.0 26.5 - 28.0 29.0-32.0 20.0-21.0
    Sp. Gr. 1.32 - 1.34 1.37 - 1.39 1.59-1.61 1.30-1.305
    Twaddel 65 - 67 75 - 77 118-122 -----
    Chloride 0.2 Max 0.2 Max 0.2 Max 0.2 Max

    Note: All the above are percentages by weight. Parameters as required by customers other than above mentioned can be Manufactured and supplied.