Light Weight Mullite Insulation Brick for High-Temperature Furnace Applications

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Insulation and Refractory Materials

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Laurel’s light weight mullite insulation brick series is specially engineered to provide superior thermal insulation and mechanical strength in demanding industrial environments. As a trusted mullite refractory bricks supplier, Laurel crafts each brick using high-purity mullite for refractory brick manufacturing, ensuring long-lasting performance at elevated temperatures.

Laurel’s light weight mullite insulation brick delivers exceptional performance for thermally intense operations. As a professional mullite refractory bricks supplier, we ensure high-quality mullite for refractory brick materials that meet industrial demands with precision and durability.


Product Details


Applications

High-temperature tunnel kilns and shuttle kilns

Furnace roofs and burner walls in ceramic plants

Incineration chambers requiring chemical durability

Heat treatment furnaces in metallurgy and glass industries

Insulation back linings behind dense refractories



Table parameters

Item

Data

LAM65

LAM70

LAM75

LAM80

Al2O3  

%

65

70

75

80

Fe2O3  

%

≤1.2

≤1.2

≤0.8

≤0.6

Apparent Porosity  

%

≤21

≤21

≤21

≤21

Bulk Density  

g/cm³

≥2.45

≥2.50

≥2.60

≥2.70

Cold Crushing Strength

MPa

≥60

≥65

≥70

≥80

Refractoriness Under Load 

(0.2MPa)

≥1560

≥1580

≥1650

≥1700


Features

Features

Mullite Phase for Structural and Thermal Reliability

Formed primarily from crystalline mullite for refractory brick, these bricks feature exceptional thermal endurance and high load resistance. The mullite phase ensures long-term integrity during continuous furnace operation.

Low Thermal Conductivity and Expansion

Each light weight mullite insulation brick offers minimal thermal expansion and excellent thermal shock resistance, making it ideal for kilns and high-cycle furnaces.

Superior Strength-to-Weight Ratio

These mullite refractory bricks combine lightweight insulation with high mechanical performance. Compared to dense firebricks, they reduce furnace wall load and energy consumption while maintaining structure under thermal stress.

Supplied in Custom Sizes and Grades

As a leading mullite refractory bricks supplier, Laurel offers customizable shapes, porosity levels, and formulations to match specific industrial applications.


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contact us

Your satisfaction is our top priority. Whether you have questions, need support, or want to share feedback, our dedicated team is ready to assist you every step of the way.

+86-15063999498

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info@laurelrefractory.com

+86-532-80829560