Polycrystalline Mullite Fiberboard

Product Introduction

Polycrystalline mullite fiberboard is a high-temperature thermal insulation material primarily made from polycrystalline ceramic fibers with a high-purity mullite crystal structure. It exhibits excellent thermal and chemical stability. This product is typically produced using the sol-gel method and sintered at high temperatures. It contains no harmful additives and is environmentally friendly and non-toxic.

 

The fiberboard boasts a solid texture, high strength, and excellent dimensional stability, allowing it to withstand long-term use in high-temperature environments around 1600°C without deformation or pulverization. Its low thermal conductivity and low heat capacity make it an excellent thermal insulation material, while also offering excellent resistance to thermal shock and air erosion.

 

Polycrystalline mullite fiberboard is widely used in high-temperature equipment linings, backing insulation layers, and thermal treatment systems for laboratory equipment in the metallurgical, ceramic, glass, and petrochemical industries. It is an ideal high-temperature, energy-saving material. It can be cut and machined as needed to meet application requirements.

 

Unique Advantages

01. Excellent high temperature stability

02. Low thermal conductivity

03. Thermal shock resistance

04. Corrosion resistance

05. Easy processing and cutting performance

06. Precise thickness and size

07. Good resistance to flame and air erosion

 

Application

High-temperature industrial furnace linings: Used for kiln linings in the metallurgical, ceramic, and glass industries, with a temperature resistance of up to 1600°C.

Aerospace thermal protection: Serves as thermal insulation for high-temperature components in rocket engines and aircraft.

Chemical equipment insulation: Suitable for thermal insulation of high-temperature chemical equipment such as cracking furnaces and reactors.

New energy: Used for high-temperature equipment such as polysilicon casting furnaces and lithium battery sintering furnaces.

Power industry: Used as a high-efficiency thermal insulation material for boilers and heat pipes.

Laboratory high-temperature equipment: Provides stable thermal insulation for high-temperature furnaces and experimental equipment used in scientific research.

Heat treatment industry: Used as energy-saving linings for heat treatment equipment such as annealing furnaces and quenching furnaces.

 

Product Parameter

Item		Index
Classification temperature(C)		1600	1700
Use limit(C)		1450	1600
Al2O3(%)		62	70
Al2O3+SiO2 (%)		98	98.5
Density(Kg/m3)		250-600	250-600
Thermal conductivity (W/m.k)	400C	0.08	0.08
	600C	0.10	0.09
	800C	0.13	0.12
	1000C	0.15	0.15
	1200C	0.19	0.19
Linear shrinkage (%)		≤2 (1450Cx24h)	≤1.5 (1600Cx24h)
Modules of rupture (Mpa)		≥0.3	≥0.3
Compressive strength (Mpa)		≥0.25	≥0.25
Ignition loss(%)		8	8

 

 

Product Certificate 

 

Customer visits

 

Packaging Display

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FAQ

Q1: Are you a production company or a trading company?

A1: SUNTHERM is a manufacturer established in 1993, located in Zibo City, Shandong Province, China. We not only provide affordable quality products, but also provide the best pre-sales and after-sales services.

Q2: What types of products do you provide?

A2: SUNTHERM provides a variety of refractory insulation materials. For example: ceramic fiber products, bio-soluble fiber products, polycrystalline products, insulating refractory bricks, calcium silicate products, rock wool, etc.

Q3: Can you provide free samples?

A3: We provide some samples to customers, but the express delivery fee is borne by the customer.

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