In applications such as building insulation, horticulture, and fireproof boards, perlite is widely used because of its excellent properties such as light weight, heat preservation, and fire prevention. However, many users will encounter one thing in common in actual use: perlite has too strong water absorption, causing the material to crack, the thermal insulation performance to decrease, and even the structure to be damaged.

From fire safety to energy saving and consumption reduction, from noise control to green environmental protection, every aspect of the application in the industrial field has long gone beyond the scope of a single material. It is a systematic protection philosophy and a long-term approach that is calculated on a prudent basis. The efficient operation of industry cannot be separated from the solid support of this 'invisible guardian'

The main crystal phase of mullite bricks is mullite (3Al₂O₃·2SiO₂). However, ordinary high alumina bricks only have alumina content that meets the standard, and their crystal phase is usually composed of a mixture of corundum, mullite and glass.
In actual use, mullite bricks have significant advantages in thermal shock resistance and creep resistance. They have better volume stability under high temperature environments and are less prone to deformation and cracking problems.