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High Silica Fiber Fabric

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Product Introduction

High silica fiber fabric represents the fourth generation of heat-resistant materials, succeeding asbestos, ceramic fiber, and glass fiber. It is manufactured from ultra-pure high silica fibers using internationally advanced technology and specialized equipment through a series of precision processes. Thanks to its high-bond-energy molecular structure, this material exhibits exceptional thermal stability, chemical resistance, and wave transparency - outperforming other heat-resistant fibers - while also offering outstanding environmental benefits such as being asbestos-free, dust-free, and non-irritating to the skin.

As an optimal replacement for conventional fireproof and thermal insulation materials, high silica fabric is also an ideal choice for wave-transparent applications. Its uses extend across numerous high-tech fields, including aerospace, defense, and nuclear energy; 5G communication equipment (e.g., radomes, antenna covers, and wave-transparent components); transportation (such as automotive parts, rail systems, marine engineering, and aircraft); new energy (including battery safety protection, solar power, and thermal storage); as well as specialized industries like metallurgy, petrochemicals, construction, environmental protection, energy, and fire safety.

Critical to aerospace and national defense, high silica fiber cloth is woven from continuous filament or plied yarn via meticulous warping, threading, and weaving processes. This results in a versatile material engineered to meet demanding performance requirements across a wide range of high-temperature and wave-transparent applications.

Performance Characteristics

High Silica Fabric for Welding Protection

High-Temperature Resistance: Maximum series softening point approaches 1,700°C; Maintains fibrous state and flexibility after 1 hour at 1,000°C under static conditions; Instantaneous heat resistance up to 1,450°C (varies by series).
Fireproof & Flame-Retardant: Achieves Class A1 non-combustibility (GB8624-2012 standard).
Ablation Resistance & Low Thermal Conductivity: Stable under thermal shock and extreme radiation. Excellent thermal insulation and safety in ultra-high-temperature environments (e.g., withstands 90 minutes of 1,000°C butane torch without penetration; varies by product series).
High-Temperature Insulation: Superior insulation under high temperatures and voltages for cable protection.

Corrosion Resistance: Maintains performance in weak acids/alkalis (excluding hydrofluoric, phosphoric, and hydrochloric acids).
Aging Resistance: Resists weathering, moisture, and UV exposure.
Three-dimensional plasticity: The skeleton substrate is properly controlled, has good bonding properties with high temperature glue, and can be made of various modules for high temperature liquid filtration, gas separation or as a catalyst or enzyme carrier;
Electrical Performance: Excellent dielectric properties for wave-transmitting material.
Eco-Friendliness: Asbestos-free (asbestos is classified as carcinogenic by IARC), dust-free (unlike ceramic fibers), and non-irritating (unlike glass fibers).

Certifications and Tests

Class A1 non-combustible (GB8624-2012 standard), European Standard M0 non-combustible, ASTM E84 Class A non-combustible.

High Silica Fiber Fabric Product Categories (Common Specifications)

Series	Product model	Thickness (mm)	Weight (g/㎡)	Fabric Weave	Width (cm)	SiO₂ content (%)	Recommended operating temperature	Product characteristics	Application field
RF Series	FSD-RF-700	0.70±0.07	650±65	S	≤145	92±2	Below 800℃	Excellent thermal insulation, A-class fireproof.	RF series can be used for fire protection, high temperature resistance, heat insulation, noise absorption, fire blanket, fire blanket, welding blanket and other high temperature fireproof sewing products.
	FSD-RF-1100	1.10±0.11	1050±120	S	≤145
	FSD-RF-1300	1.30±0.15	1250±150	S	≤145
	FSD-RF-T1500	1.50±0.20	1500±150	P	≤145
	FSD-RF-T2000	2.00±0.25	1800±180	P	≤145
	FSD-RF-T2500	2.5±0.30	2000±200	P	≤145
RS Series	FSD-RS-260	0.25±0.02	250±30	P	≤150	96±2	Below 1000℃	High temperature resistance, good thermal insulation effect, fire A non-combustible, good penetration, uniform soaking, coating and composite fastness.	RS series can be used for fire protection, high temperature resistance, heat insulation, noise absorption, high temperature sealing, environmental protection filter materials, can be made into coils, sheets, gaskets, gaskets, etc., can also be used as coating and composite substrate. Generally used in military, nuclear power, aircraft, trains, ships, automobiles, power battery protection, energy storage battery protection and some special equipment and other special fields with high support requirements.
	FSD-RS-400	0.4±0.05	400±50	S	≤150
	FSD-RS-600	0.65±0.07	550±50	S	≤150
	FSD-RS-1100	1.0±0.15	1050±100	S	≤150
	FSD-RS-1300	1.2±0.15	1100±100	S	≤150
	FSD-RS-M1300	1.3±0.15	1100±100	P	≤150

Note: The above are only some models and parameters of our common specifications. If you need other models or have customized needs, you can consult (FSD) business personnel.

Disclaimer: The above technical parameters and pictures are for reference only and are not used as the technical basis for each batch of actual products.

Main Uses

Used as fireproof, high temperature resistance, heat insulation, sound absorption, high temperature sealing materials

Used in military, aerospace, nuclear power thermal insulation materials, brake friction liner, etc.;
Metallurgical, mechanical and electrical, petroleum, chemical, power plant, transportation, mechanical equipment and other general industrial fields: hot and cold pipes, containers, boilers, valves, flanges, pumps, and some power supply or process temperature related proprietary equipment: Such as steam turbine, engine, compressor, press, injection molding machine, vulcanization machine and other excellent thermal insulation materials under high temperature conditions, high temperature resistance, good durability;
Bushings for high temperature flue, air duct, soft joints for high temperature resistance, gaskets for conveying high temperature liquid;
All kinds of thermal insulation industrial kiln door seal, furnace curtain.

High silica glass fiber cloths are used as high temperature filter material

Carbon black, steel, non-ferrous metal processing, chemical industry and other fields for high temperature gas environmental protection filtration;
High Silica Hisilica Fiber Fabrics are used as fire protection material;
Archives, vaults, safes in high-grade office buildings, heat insulation, fire insulation layer, fire automatic fire curtain in shopping malls, hotels, stations, schools and other important places;
Fire doors, fire curtains, fire blankets, fire MATS for catching sparks, protective clothing for high temperature environments, and other heat-insulating sewing articles covering fire protection;
High silica fabric serves as an excellent high-temperature ablative material for welding protection;
Combined with various reinforced resins to form high-temperature ablative materials (such as engine nozzles, throat linings, and other aircraft ablative materials).

Used as a wave permeable material (such as radomes and other communication facilities)

High Silica Plain Cloths are used in special fields of new energy
Power battery safety protection, energy storage battery safety protection, solar energy, air energy and other new energy fields of thermal insulation, fire prevention, explosion protection and other safety protection, under high temperature, high voltage insulation and safety protection of lines, instruments and related parts.

Used in special areas of transportation (aircraft, trains, ships, automobiles, etc.)

Thermal insulation of power systems of aircraft and trains, such as engines and related pipes and components;
Thermal insulation of ship's power cabin systems, such as steam turbines, associated pipes and components, and bulkheads; Fire blanket, fire blanket, welding blanket, escape blanket, etc.;
The heat shield of the automobile engine, the protection of the exhaust pipe of the heavy oil engine, the composite brake friction liner of the high-speed racing car;
Heat insulation, fire prevention, explosion protection and other safety protection of new energy vehicle battery warehouse; Insulation and safety protection of automotive lines, instruments and related components at high temperatures and voltages.