JM Series JM23 JM26 JM28 JM30 Thermal Light Weight Mullite Insulating Refractory Bricks

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Bubble Alumina Brick and Insulating Firebrick are high temperature refractory brick, max temp 1800 deg C, used in furnace kiln.

Bubble Alumina Brick and Insulating Firebrick are high temperature refractory brick.


Bubble Alumina Brick. We stock in both 2.5 & 3” sizes. We also carry double bump interlocking anchor styles. For use up to 1800C, these brick have excellent insulating properties as well as high hot strengths.


Insulating firebrick, we carry produces thirteen types of Insulating Fire Brick for use in applications from 2,000°F (1,093°C) to 3,200°F (1,760°C). Each type is formulated to meet specific thermal and physical requirements and after firing is machined to precise tolerances.


Made from high purity refractory clays and other ceramic raw materials, these insulating fire brick contain a carefully graded organic filler which is burned out during manufacture to give a uniform controlled pore structure.



The high compressive strength of bubble alumina brick allows for self-supporting structures at elevated temperatures. Insulating fire brick are compatible with dense fire brick and add strength to the whole construction.


Low Heat Storage

Lower heat storage versus dense brick means reduced fuel costs in cyclically operated heating equipment.


DJM 26  Light Weight Insulating fire brick are used for the lining of converter, alternating current arc furnace, direct Current arc furnace and the ladle slag line, etc.

Company Advantage

(1)Long Insulating Fire Brick manufacture history: 25 years manufacturer 

(2)Advanced equipment

(3)Diversification of production standards: ISO ANSI FEPA JIS ASTM



1 unit of Ceramic Abrasive (SG Abrasive) pilot production line

1 unit of high-end coated abrasives (abrasive cloth) production line

2 units of Boron Carbide production lines


Q1  What’s the transport method?

A1  FCL delivery goods with wooden pallet or wooden case by sea; If LCL delivery, must with wooden case; Sometimes need open top, flat rack or bulk cargo.

Q2  What’s the required payment term?

A2  Generally 30% TT as the prepayment, 70% TT before delivery. If need, 100% Irrevocable Letter of Credit or negotiation.

Q3  Which country are our products exported to?

A3  Apart from entire Chinese market, the US, Russia, Japan, Korea, Australia and some Southeast Asian Nations.




JM Series JM23 JM26 JM28 JM30 Thermal Light Weight Mullite Insulating Refractory Bricks

JM Series JM23 JM26 JM28 JM30 Thermal Light Weight Mullite Insulating Refractory Bricks


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Q:Can fly ash brick keep warm?
Add blocks and have autoclaved fly ash bricks, do not you?
Q:Clay insulation bricks insulation, brick and ordinary clay brick, fireclay, brick distinction, and its use? Thank you
The insulation brick integrates the excellent heat preservation effect into the wall while building the wall. Low thermal conductivity, high strength, durable, lightweight, simple construction, easy handling, economy, green environmental protection, sound insulation, fire protection etc..
Q:Advantages and disadvantages of wall insulation system?
The advantages of internal insulation: insulation walls, paint inside the wall, and direct people or other biological contact, in order to ensure human or biological health in insulation coating insulation at the same time, we must first ensure that the paint is non-toxic, no volatile substances.
Q:Coke burns in a closed house. Will anyone suffocate in it?
Coke incomplete combustion can produce colorless gas carbon monoxide toxic odor. Carbon monoxide is a harmful gas. It will enter the body in the blood and hemoglobin, hemoglobin can combine with oxygen, cause the body tissue hypoxia, which causes the body to suffocation.
Q:Material and making method of light insulating brick
Thermal insulation brick is a new type of building material synthesized with macromolecule material. Replace the aluminum plate, honeycomb board, curtain wall and other commonly used decorative materials, multi-functional integration, a construction can solve the thermal insulation decoration two functional requirements, smooth, smooth and beautiful, decorative strong. Mainly used in toilets, kitchens, television, the background wall, bedroom, walls and so on. And brightly colored, various specifications, can be cut at random, the section neatly.
Q:Masonry method for boiler refractory brick
Furnace wall gas tightness requirements, gray seam fullness requirements: red brick is not less than 85%; refractory brick not less than 90%. When the red brick is built, the method of squeezing is adopted, and the construction of the refractory brick is constructed by scraping.
Q:The project cost in hydropower No.3 shaft wall is solid brick or insulating brick?
From the structure principle, hydropower shaft with solid brick, is to consider the safety performance of the structure.
Q:Insulation brick should pay attention to external walls?
In each segment or block the tiles are from bottom to top paste, from the line of position the next layer of hypodermis first brick hidden good ruler, to hold the first leather tiles, pull in tile lines as the upper skin paste standard.
Q:What is the price of fireproof insulation material?
A preliminary understanding of price through online preliminary understanding, now generally the size of the opening of the cable insulation material manufacturers are on business, early online now have a preliminary understanding, manufacturers investigation after considering cooperation.
Q:What is the bulk density of insulating bricks?
Stoneware porcelain water absorption rate is greater than 0.5% and less than or equal to 3%; fine stoneware bibulous rate is greater than 3% and less than or equal to 6%; brick bibulous rate is greater than 6% and less than or equal to 10%; pottery tile water absorption rate is greater than 10%. The water absorption rate of expression: ceramic brick brick >6% = >10% = >3% = fine stoneware porcelain stoneware or porcelain >0.5%

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