Fiberglass Filter Cloth

Home » Woven Filter Fabrics

---

Description

---

As a premium woven filter cloth manufacturer, Fillmedia® leverages its extensive industry experience and team of technical experts to deeply understand filtration needs under diverse operating conditions. We provide scientifically rigorous, practical, reliable, and customized filtration solutions to meet our customers’ specific application requirements. We offer comprehensive technical support covering material selection, product design, and process optimization, aiming to improve filtration efficiency, extend product lifespan, and reduce overall operating costs.

---

Specifications of Fiberglass Filter Cloth (Accept Customization)

Model	Weave Pattern	Weight (g/m²)	Tensile Strength (N/2.5cm) Warp	Tensile Strength (N/2.5cm) Weft	Air Permeability (cm³/cm²·s·127Pa)	Finish Treatment	Operating Temperature (°C)
01	Double Twill	780–850	>2400	>2000	15–30	PTFE	<260
02	Double Twill	780–850	>2400	>2000	15–30	PI	<260
03	1/3 Twill	450–500	>2000	>1200	20–36	PGS	<260
04	1/3 Twill	340–380	>2000	>1200	20–36	AR	<260
05	1/3 Twill	320–360	>1400	>800	22–35	PTFE	<260
06	1/3 Twill	900–950	>1200	>700	22–35	AR	<260
07	Satin Weave	900–950	>3000	>2400	15–25	PD	<400
08	Double Twill	800–850	>2600	>2200	15–30	PTFE	<260
09	Satin Weave	550–600	>2200	>2000	20–35	PG	<260
10	1/3 Twill	550–600	>2200	>2000	20–35	PG	<260

Yarn Structure

Fabric Type	Structural Features	Filtration Performance	Key Applications
Monofilament	Woven from single, smooth, and uniform continuous filaments in both warp and weft.	Clear pores, non-blinding (resistant to clogging), fast drainage. Excellent cake release and long service life with easy regeneration.	Processes with coarser particles requiring rapid discharge and frequent backwashing.
Multifilament	Woven from yarns made of multiple fine fibers twisted together (available in staple and filament fibers).	Superior retention of fine particles and extremely high tensile strength. However, it is more prone to clogging and harder to discharge than monofilament.	Fine particle capture and high-pressure filtration conditions.

---

Common Weave Patterns

---

Performance Advantages of Fiberglass Filter Cloth

• Excellent High-Temperature Resistance

Woven fiberglass filter cloth can operate continuously at temperatures up to 260°C (500°F) and withstand short-term temperatures of 280°C (536°F). The material is inherently non-combustible and will not burn when exposed to sparks or hot particles. Even after being heated at 280°C for two hours, its physical properties and appearance remain virtually unchanged, a performance that many organic fiber filter media cannot achieve.

• High Strength and Low Elongation

The tensile strength in both warp and weft directions typically exceeds 2000 N, while elongation remains below 3%. The fabric exhibits minimal thermal shrinkage even under elevated temperatures, ensuring stable dimensions and consistent filtration performance. This stability helps prevent filter bag deformation and reduces damage caused by repeated pulse-jet cleaning cycles, thereby extending service life.

• High Filtration Efficiency

PTFE membrane-laminated woven fiberglass filter cloth utilizes advanced surface filtration technology. The membrane pore size typically ranges from 0.1 to 2.0 μm, effectively capturing fine particles including PM10 and PM2.5. Emission levels can be consistently maintained below 20 mg/m³, 10 mg/m³, or even 5 mg/m³, meeting stringent environmental regulations.

• Thin, Flexible, and Easy to Clean

The thickness of woven fiberglass filter cloth is generally less than 0.8 mm, approximately one-third that of conventional needle-punched felt filter media. The textured yarn construction provides excellent flexibility. During cleaning cycles, the filter bag generates effective vibration, allowing dust cakes to detach easily. This reduces cleaning pressure requirements, lowers compressed air consumption, decreases maintenance frequency, and minimizes operating costs.

• Outstanding Oxidation and Corrosion Resistance

Fiberglass is naturally resistant to oxidation and performs well in high-oxygen flue gas environments. After PTFE impregnation, a dense protective layer forms on the fabric surface, enhancing resistance to acidic gases, moisture, and chemical corrosion, thereby extending filter media lifespan in harsh operating conditions.

• Superior Flex Resistance

Through specialized chemical post-treatment processes, woven fiberglass filter cloth achieves significantly improved flex resistance. It can withstand long-term cycles of expansion, contraction, and mechanical vibration without fiber breakage or structural damage, ensuring reliable long-term operation.

• Water and Oil Repellency for High-Humidity Applications

After water- and oil-repellent treatment, woven fiberglass filter cloth exhibits excellent hydrolysis resistance and moisture protection. With a water repellency rating of Grade 4.5 or higher, it effectively reduces moisture absorption and prevents hardening caused by condensation, making it particularly suitable for high-humidity and high-dew-point flue gas environments.

---