Haldenwanger Products


Our Haldenwanger business is pleased to offer their Halcoat coating which is used for the protection of fused silica rollers in steel treatment appliances, such as in hot pressing furnaces. Halcoat is made from silicon nitride Si 3N 4 which repels molten metal, particularly aluminium. When used as a coating, it significantly extends the operational life of our fused silica rollers, which are otherwise vulnerable to damage from the splashes and drips of molten metal. Like fused silica, it has a very low thermal expansion and excellent resistance to thermal shock. For more information on Halcoat as a protective coating, our fused silica rollers or our fused silica material please contact us today.

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