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.
Key Features: Excellent high temperature resistance, non-combustible material, outstanding dimensional stability, low moisture absorption, good filtration efficiency, and long service life.
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.
