We manufacture and export a wide range of crucibles, furnaces and minerals to the foundry industry.

Wider Range of Glazes Available.

Century crucibles are self-glazing; this means that a glaze is constituted with the body. When the crucible is heated, the crucible body appears to exist in 2 physical forms. one being in the solid state , this portion is called the skeleton of the crucible and mainly consisting of silicon carbide and natural crystalline graphite . These materials remain in the sold state through out the service life of the crucible. These two components provide the abrasion and thermal strengths which are required to withstand the hazards of foundry practice .The crucible is physically handled in the hot condition when it holds the molten metal and it also provided the medium through which heat is transferred via the crucible body to the metal/alloy. This is very good both with natural crystalline graphite and silicon carbide both being ideally suited for this application.

The second part of the crucible is the one that goes into the liquid phase when the crucible is heated and goes back into the solid state when the crucible comes back to room temperature. This part is what is called the glaze component. This serves two very important aspects (a) on the outside of the crucible- there is temperature, oxygen (more in electric resistance furnaces and lesser in oil/gas fired furnaces) it prevents the oxidation of the crucible skeleton and the bond which in the case of Century crucibles is a carbon bond by the use of Phenolic resins. Carbon can easily be oxidized to its oxides, the amorphous carbons oxidize much faster than the crystalline /glassy carbons –here again the resins give a much more sustainable property to the product. (b) On the inside of the crucible there are molten metal and dissolved gases and the effect of fluxes. Which today do the melters for all applications use. The glaze which are used by us on and in Century crucibles have a predefined properties to combat these hazardous effects, which always have pronounced effects on the service life of the crucible. Our glazes, which are incorporated within the crucible making it a self-glazing crucible and suitable over, a wide range of temperature.

We offer a wide selection of glazes from which can be applied to the crucibles indented by you. All crucibles are provided with an excellent glaze which is ideally suited for its working temperature range depending upon the special composition crucibles selected by you click here.

In addition to this if highly specialized glazes are required like the boron carbide glazes , please specify in your enquiry along with the details of working temperature, type of fluxing used and metal/alloy melted for us to offer you the most suitable special glaze suitable for your application for getting extra performance from our Century crucibles .

Please click here to read our recommendations for the use, storage and use for century crucibles in where we have listed instructions for obtaining the best service and performance from Century crucibles.

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