Fiberglass Filter Cloth

Fiberglass Filter Cloth is a high-temperature industrial filtration material manufactured from inorganic glass fibers. It is widely used in dust collection systems operating under extreme temperature conditions and offers excellent dimensional stability, flame resistance, and chemical resistance.

Compared with conventional synthetic filter media, Fiberglass Filter Cloth provides superior thermal performance and is particularly suitable for cement plants, steel plants, waste incineration facilities, chemical industries, and other high-temperature flue gas filtration applications.

Technical Specifications

Item	Description
Product Name	Fiberglass Filter Cloth
Material	Inorganic Glass Fiber
Main Components	Silicon Dioxide, Aluminum Oxide, Calcium Oxide, Boron Oxide
Fiber Diameter	Approximately 3–20 μm
Continuous Operating Temperature	260°C–280°C
Instant Maximum Temperature	Up to 300°C–550°C (Special Types)
Common Structures	Woven Fabric / Bulked Yarn Fabric / Needle Felt / Membrane Composite
Typical Weight	750–1000 g/m²
Thickness	1.8–2.1 mm
Air Permeability	20–30 cm³/cm²/s
Optional Surface Treatment	Polytetrafluoroethylene Membrane / Silicone / Graphite Impregnation

Main Advantages

Advantage	Practical Value
Excellent High Temperature Resistance	Suitable for continuous high-temperature flue gas filtration.
Good Chemical Resistance	Resistant to many industrial acids and gases.
High Dimensional Stability	Low elongation and stable structure under high temperature conditions.
Non-Combustible Material	Inorganic fiber with excellent flame resistance.
Low Moisture Absorption	Suitable for humid operating environments.
Good Filtration Efficiency	Membrane-treated products can achieve low particulate emissions.
Long Service Life	Typical service life exceeds 2–3 years under stable operating conditions.

Main Disadvantages

Disadvantage	Practical Impact
High Brittleness	Repeated bending may damage the fiber structure.
Limited Abrasion Resistance	High-speed abrasive dust may shorten service life.
Limited Strong Alkali Resistance	High alkaline environments may corrode the fiber surface.
Lower Fine Particle Efficiency Without Membrane	Surface membrane treatment is often required for ultrafine particulate filtration.
Requires Surface Treatment	Additional impregnation treatment is usually necessary to improve flexibility and condensation resistance.

Typical Industrial Applications

• Cement Industry – Cement kiln exhaust dust collection systems.
• Steel & Metallurgical Industry – Sintering and converter furnace flue gas filtration systems.
• Waste Incineration Plants – High-temperature combustion exhaust filtration.
• Chemical Industry – High-temperature acidic gas purification systems.
• Carbon Black Industry – Fine particulate recovery systems.
• Metal Casting Industry – Molten metal filtration applications.