Alumina Hollow Sphere Insulating Castable

Product Introduction

This product is based on a high-purity Al₂O₃ system, utilizing alumina hollow spheres with an Al₂O₃ content exceeding 99% as the aggregate. It is combined with active alumina powder, corundum micro-powder, and other fine powders to enhance high-temperature performance. The resulting castable exhibits high refractoriness, low thermal conductivity, and excellent thermal shock stability.