High Purity Alumina Bubble Insulating Brick

Alumina Bubble Insulating Brick uses alumina bubble and alumina powder as the main raw material, combined with other binder, through 1750 degrees high temperature firing which is a kind of ultra-high temperature energy-saving insulating materials.
Model Number: Alumina Bubble Insulating Brick 
Certification: ISO9001:2015
Minimum Order Quantity: 25 tons


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Alumina Bubble is a new kind of high temperature heat insulation material. Bases on alumina bubble as the main body, it can be made into various shapes, the highest operating temperature 1800 ℃, the product with high mechanical strength that is general light products several times, and the bulk density is only half of the corundum products.

Alumina Bubble Insulating  Brick uses alumina bubble and alumina powder as the main raw material, combined with other binder, through 1750 degrees high temperature firing which is a kind of ultra-high temperature energy-saving insulation materials. Alumina bubble bricks can be used for ultra temperature kilns such as shuttle kiln, and metallurgical industrial induction furnace etc.

Advantages of Alumina Bubble Insulating Brick:

1. High operating temperature: It can reach over 1750℃, with good thermal shock resistance, small reheat linear change and durability.

2, Lightweight: Commonly used refractory materials belong to heavy bricks with volume density generally 2.6-3.0 g/cm3, alumina bubble brick only 1.1-1.5 g/cm3, thus reducing 1.1-1.9 tons per volume.

3, Energy saving: Alumina bubble has obvious thermal insulation properties, low thermal conductivity which have very good heat preservation effect, and can reduce the heat dissipation, increase thermal efficiency, thereby achieve the purpose of saving energy. The energy saving effect can reach more than 30%.

Alumina Bubble insulating brick Al2O3(%)

Bulk Density






Thermal Conductivity




JD-90 90 1.1 10 ±0.3 0.8 1650
JD-90 90 1.3 12 ±0.3 0.8 1700
JD-95 95 1.5 12 ±0.3 0.7 1750
Remark ISO Certificated; Customized


We provide you:

Technical guidance: According to customer's practical production requirements, our technical department will assist users to make adaptive & targeted improvements to the products on the basis of the original required specifications, putting forward better optimization scheme to extend the serve life of the products in the designated kiln.

In the masonry, usage and other aspects of the products, we provide the corresponding standard construction scheme for each batch of products.

We strongly recommend user to follow our construction scheme for installation and construction, in order to achieve the best use effect of the product. On-site guidance can be provided when necessary.

Profit analysis: Our company has nearly 20 years of industrial experience & kiln engineering design experience, we provide cost-effective refractory products which can effectively help users to meet the requirements of kiln production, thus extending the service life of products and kilns, and reducing maintenance and shutdown costs. All these can obtain more comprehensive benefits for you!

Production Equipment

Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.

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Packing Details
Packing details:

★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.

★Wooden pallet size: usually 92*92cm (standard brick)

★Castable: Ton bag with rain film and 25kg bags inside

★Or according to customer's requirements


★Port of dispatch: Tianjin port; Qingdao port

★Delivery time: According to customer's demand or two sides negotiate

Our Services

★Timely response: Timely response to your inquiry within 24 hours and provide solution. 

★Competitive Price: Make the products competitive in your market. 

★Free sample: Free sample are offered, trial order are accepted for quality evaluation. 

★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers' needs.

★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment. 

★ Professional services: Provide pictures from order to delivery. Inspect report by our country's designated authority and oversea services if necessary.

We are here for you!

JUNDAO (HENAN) NEW MATERIALS CO.,LTD.   Services   Services   Services


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