THERMALLY INSULATING COATING MATERIAL FOR REFRACTORY CONTAINING CARBON

摘要

The present invention provides a thermal insulation coating material for a carbon-containing refractory that prevents surface oxidation of the carbon-containing refractory and that can form a thermal insulation layer when heated at a high temperature. The thermal insulation coating material for a carbon-containing refractory according to the present invention is characterized by including a refractory material containing hollow refractory particles whose content is 50 to 97% by weight and a part or the whole of the balance being clay with the content of the clay being 30% by weight or less and a liquid binder added to the refractory material in an amount of 20 to 170% by weight in outer percentage.