Shijiazhuang Hongtao Technology Co., Ltd., a professional high-tech enterprise based in Zhengding County, Shijiazhuang, Hebei, China, specializes in R&D, manufacturing and customization of JM26 mullite refractory bricks, core high-temperature insulation materials for industrial kilns and high-temperature equipment.

As a high-performance insulating refractory brick, JM26 mullite brick is made of high-purity mullite raw materials with Al₂O₃ content of 46%-48% and Fe₂O₃ ≤0.8%, produced via high-temperature sintering and precision molding. It has a bulk density of 0.8-1.4g/cm³, cold crushing strength of 1.5-4.0MPa, and excellent thermal stability with ≤0.4% linear shrinkage at 1300℃ for 12 hours.

With low thermal conductivity (0.20-0.58 W/m·K at 200-600℃), it achieves remarkable energy-saving effects, reducing heat loss effectively. It features superior thermal shock resistance, chemical inertness and lightweight design, resisting acid and alkali corrosion, and ensuring a clean working environment with low impurity content.

Widely applied in ceramic kilns, glass furnaces, petrochemical reactors and metallurgical equipment as insulation linings or back insulation layers, it supports standard size (230×114×65mm) and customized solutions. Shijiazhuang Hongtao adheres to innovation, delivering high-quality JM26 mullite refractory bricks for global industrial partners.