Heat Resistant Alumina Fiber Paper

Product Introduction

Heat Resistant Alumina Fiber Paper is manufactured using polycrystalline alumina fibers and binders, delivering outstanding flame retardancy, thermal insulation, electrical insulation, and resistance to extreme temperatures and aging. This halogen-free, non-toxic, and odorless material exhibits high dielectric strength, ensuring reliable thermal and fire protection. It is easy to cut, shape, and process with low dust generation, making it suitable for direct application or encapsulation in electrical equipment, electronics, and battery cells for thermal management, fire resistance, and flame-retardant insulation.

Featuring a flexible and soft structure, Heat Resistant Alumina Fiber Paper can be readily cut and wrapped around complex parts. It finds wide application in high-temperature furnace linings, aerospace thermal barriers, new energy battery insulation, semiconductor heat treatment carriers, as well as thermal insulation and sealing in the metallurgical, ceramic, and glass industries. As an environmentally friendly and efficient high-temperature material, it significantly improves equipment thermal management and safety while supporting environmental compatibility and long service life.

Main Features

Resistant to ultra-high temperatures: Can be used for a long time in environments during 1100-1200℃.

High thermal insulation: Low thermal conductivity, effectively blocking heat.

Chemical corrosion resistant: Resistant to acids and alkalis, anti-oxidation, good stability.

Flexible and easy to process: Can be cut, folded, and fit complex structures.

Low thermal contraction: Dimension remains stable and does not deform at high temperatures.

Excellent electrical insulation: Maintains insulation even at high temperatures.

Safe and environmentally friendly: No asbestos, no harmful substances are released at high temperatures.

Suitable for high-temperature insulation, sealing, and electrical insulation scenarios.

Product Applications

High-temperature industrial furnace linings: Used as insulation pads for high-temperature furnaces and kilns, and as filling materials for expansion joints.

Aerospace: Used as high-temperature heat shielding layers and insulation components for aircraft and engines.

New energy batteries: As insulation sheets between lithium battery cells to prevent heat spread.

Semiconductor manufacturing: Used for heat treatment and diffusion furnaces in semiconductor equipment for insulation and carriers.

Glass and ceramic industry: High-temperature kiln roller track seals, product isolation gaskets.

Fire prevention and protection: Used to manufacture advanced fireproof blankets, sealing strips, and other passive fire protection materials.

Electronics and electrical appliances: Insulation and heat insulation materials for high-temperature sensors and electric heating appliances.

Technical Parameters

Test	Standard	Technical Index
Appearance	Q/370500DHGX008-2023	Smooth and flat surface with no impurities
1000V DC Insulating property	Under condition of 1000V DC,test time 60s	Insulation resistance≥500MΩ
Fibre ID	Q/370500DHGX008-2023	5.5~7.5μm
Tensile Strength	GBT 17911-2018	≥200kPa
Flame Retardance Property	UL94-V0	Meet
Thermal Conductivity	GB/T 10297-2015	≤0.04w/m ·k

Product Certificates

As a professional manufacturer of refractory insulation materials, SUNTHERM has many years of industry experience. Its products have passed many international certifications such as CE, SGS, ISO9001, etc., with excellent quality and reliable performance.

Precautions for Using Alumina Fiber Paper

Handle with care: The material is brittle and tears easily. Avoid bending or folding.

Wear protective gear: Always wear a mask and gloves during operation to prevent inhalation of fiber dust.

Cut with a sharp blade: Use a sharp knife for scoring and cutting to prevent edge damage.

Do not exceed temperature limits: Never use it beyond its maximum operating temperature.

Avoid over-compression: Apply even pressure during installation to prevent crushing.

Store in a dry place: Keep it in a dry environment.

 

 

FAQ

Q1: What are the payment terms?

A1: 30% in advance, the balance 70% to be paid before shipment.

Q2: What is your shipping method?

A2: Usually by sea. Urgent by air or truck.

Q3: What kind of products do you provide? / What are the main products of your company?

A3: Our company provides various refractory insulation materials. For example: ceramic fiber products, water-soluble fiber products, alumina fiber products, new material products, rock wool, etc. In addition, we also provide ceramic fiber production lines and rock wool production lines.

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