SilicaPro

Quartz Fiber

Product Description

Quartz fiber is an inorganic fiber made from high-purity quartz or natural crystal. It maintains some of the characteristics and properties of solid quartz and has some excellent properties of its own. It is offering enhanced performance such as:

High tensile strength and dimensional stability
Low dielectric constant and dielectric loss
High-temperature resistance up to 1700 °C
Excellent corrosion resistance
Low thermal expansion coefficient
Lightweight and flexible design performance

Because of these unique advantages, quartz fiber is widely used in:

Missiles, aircraft, and satellite radomes
High-frequency, low-expansion circuit boards
Electromagnetic windows (interference/anti-interference systems)
Rocket and aircraft engine thermal protection systems
Optical fiber manufacturing and thermal insulation
Automotive glass manufacturing
High-temperature gas filtration
Replacement for silicate or asbestos fibers

Quartz Fiber Products: Cloth, Cotton, Sleeve, Yarn, and Strands

As a Quartz fiber manufacturer in China, we provide a complete range of quartz fiber materials, engineered for high-temperature and high-performance applications. Our product line includes quartz fiber cloth, yarn, chopped strands, roving, sewing thread, sleeve, and cotton, each tailored for specific industrial needs.

Quartz fiber cloth is woven in plain, twill, and satin patterns with thicknesses from 0.06 mm to 3 mm, offering superior strength and flexibility for thermal insulation, composite reinforcement, and fire protection.
Quartz fiber yarn, roving, and sewing threads provide excellent mechanical strength and dielectric stability, ideal for weaving, braiding, and high-temperature textile manufacturing.
Chopped quartz fiber strands are available in lengths from 6 mm to 30 mm and are commonly used in reinforced plastics, friction materials, and coatings.
Quartz fiber sleeves (inner diameters 1 mm – 100 mm) offer durable electrical and thermal insulation for cables, pipes, and engines.
Quartz fiber cotton features ultra-fine filaments (0.7 – 8 µm) for lightweight thermal insulation, making it perfect for optical fiber production and high-temperature gas filtration.

All Silicapro quartz fiber products maintain SiO₂ content ≥ 99.9 %, ensuring exceptional purity, corrosion resistance, and thermal stability across aerospace, electronic, and industrial applications.

Wholesale and OEM Supply

Our factory provides wholesale quartz fiber materials and OEM manufacturing services for global clients. We specialize in custom specifications, private labeling, and bulk supply for industrial users across aerospace, electronics, and insulation sectors.

Material Characteristics of Quartz Fiber

Characteristic	Item	Unit	Value
Physical Properties	Density	g/cm²	2.2
Electrical Properties	Softening Point	°C	1700
	Dielectric Constant (10GHz)		3.74
	Dielectric Loss Factory (10GHz)		0.0002
	Dielectric Strength	V·m^-1	3.7×10⁷
	Resistivity (20°C)	Ω·m	1×10²⁰
	Resistivity (1000°C)	Ω·m	1×10⁸
Thermal Properties	Linear Expansion Coefficient	K^-1	0.55×10^-6
	Specific Heat (20°C)	J·Kg^-1·K^-1	670
	Thermal Conductivity (20°C)	W·m^-1·K^-1	1.4

Quartz Fiber Chopped Strands

Item	Unit	Standard	Test Value
Diameter	um	10.5 ± 1.00	10.7
Length	mm	6 – 30	6.4
Moisture Content	%	—	0.60
Combustible Matter Content	%	1.0 ± 0.5	1.01
SiO2 Content	%	≥ 99.9	99.92

Quartz Fiber Yarn

Name	Filament Diameter (μm)	Lineardensity (TeX)	Twist (T/m)
A Type Quartz Fiber Yarn	6±1	10-400	30-200
B Type Quartz Fiber Yarn	7±1	10-400	30-200
C Type Quartz Fiber Yarn	8±1	30-500	30-160
D Type Quartz Fiber Yarn	10±1.5	50-500	30-160
Chopped Quartz Fiber	6-12	—	—
Quartz Roving	7±1	6-2400	≤10
Quartz Fiber Sewing Thread	7±1	18-300	120-300