Sealing compound

For making certain types of exothermic welding


    The exothermic welding is a self-sufficient process to achieve high quality electrical connections between copper, copper alloys or steel conductors. The process implies the use of a graphite mold allowing the molten metal present inside to come in contact with the conductors present and to weld them in a definitive way.

    The sealing compound is used in cases where the conductors to be welded do not have a smooth surface, for example, when welding a cable to a rebar, or a cable to a steel surface.

    The sealant is applied in contact with the element to be welded and the outer wall of the mold to seal the existing gap and allow the molten metal not to flow out of the weld cavity. A complete box of sealant allows for approximately one hundred welds.

    How to choose all the required exothermic welding materials ?

    To choose all of the required materials, follow the steps below:

    1. Select the graphite mold
    2. Select the handle clamp
    3. Select the metal powder
    4. Select the ignition method
    5. Select the accessories and safety equipments

    What if the welding configuration is not available on MALTEP website ?

    MALTEP also manufactures graphite molds for the realization of particular welding configuration.

    Do not hesitate to consult us for any particular request with the following welding inputs:

    • The configuration  of the weld: tee, parallel, etc..
    • The nature of the conductors to be welded: cable, round, rebar, etc. (note that aluminium is not suitable with exothermic welding)
    • The cross section, diameter, conductors dimensions
    • The number of welds to be done for each type of weld

    Wants to know more ?


    Discover our exothermic welding overview


    Data sheet


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