P84 Needle-Punched Felt
P84 Needle-Punched Felt is a polyimide (PI) fiber filtration media engineered for high-temperature, chemically aggressive, and heavy-dust industrial environments. It offers excellent thermal stability (continuous ~260 °C, peaks ~280–300 °C), strong chemical resistance, high filtration efficiency, low shrinkage, and long service life under abrasive dust loads.
This makes P84 ideal for demanding flue-gas applications where both temperature and chemical exposure exceed the limits of conventional filter materials.
Continuous use up to ~260 °C, peaks to ~300 °C.
Good resistance to acids, alkalis, corrosive gases.
Tri-lobular fiber cross-section increases surface area, enabling efficient surface filtration and dust-cake formation
under thermal cycles — ensures bag stability and long life.
Balances high performance and cost for many industrial baghouse applications.
| Technical Properties of P84 Needle-Punched Felt | |||||||
|---|---|---|---|---|---|---|---|
| Compositions | P84 / P84 scrim | P84 / Glass scrim | |||||
| Weight (g/m²) | 450 | 500 | 550 | 800 | 850 | 900 | |
| Thickness (mm) | 2.0 | 2.2 | 2.4 | 2.5 | 2.8 | 3.0 | |
| Air Permeability (m²/m²·min) | 19 | 15 | 12 | 16 | 13 | 10 | |
| Tensile Strength (N/5×20cm) | Warp: 650 | 700 | 800 | 1800 | 1800 | 1800 | |
| Weft: 1150 | 1200 | 1300 | 1800 | 1800 | 1800 | ||
| Tensile Elongation (%) | Warp: <35 | <35 | <35 | <10 | <10 | <10 | |
| Weft: <55 | <55 | <55 | <10 | <10 | <10 | ||
| Working Temperature (°C) | Continuous: ≤260 | ≤260 | |||||
| Instant: 300 | 300 | ||||||
| Anti-acid | Excellent | Excellent | |||||
| Anti-alkali | Medial | Medial | |||||
| Anti-abrasion | Excellent | Excellent | |||||
| The stability of water solution | Medial | Medial | |||||
| Finishing Treatment | Singeing, High-temperature hot pressing | Singeing, High-temperature hot pressing | |||||
P84 Needle-Punched Felt is engineered for high-temperature, chemically challenging, and abrasive industrial flue-gas environments. Its polyimide fiber construction offers excellent thermal stability (continuous up to 260 °C, instant 280–300 °C), low shrinkage, strong chemical resistance, and long service life under heavy dust loading. This makes P84 an ideal choice for cement production, power boilers, waste-to-energy plants, metallurgical furnaces, and other high-temperature combustion processes.
High-temperature clinker lines, cement kilns, and mineral-processing exhaust contain abrasive dust and SO₂/SO₃-rich gases. P84 felt maintains excellent thermal stability and low shrinkage, improving dust-collection efficiency and extending bag life in harsh cement environments.
WtE and incinerator systems experience rapid temperature spikes, acidic flue gases, and ash-laden particulate. P84’s chemical resistance and heat tolerance (up to 260–300 °C) ensure stable filtration, reduced emission peaks, and strong performance under continuous thermal cycling.
Metallurgical furnaces, coal/biomass boilers, and chemical-process gas streams expose filters to corrosive acids, alkalis, fine particulate, and high-temperature loads. P84 felt provides reliable filtration efficiency, reduced shrinkage, and long service life in these chemically aggressive and dust-intensive conditions.
Choosing the right filtration supplier affects everything from system stability to maintenance downtime. At Omela Filtration, we combine reliable materials, controlled production, and years of industry experience to support dust and liquid filtration needs across different plants and applications.
We use consistent-grade filter media, sewing thread and metals sourced from qualified suppliers. Each batch is checked for weight, thickness, air permeability and tensile strength to keep performance steady across shipments.
Our facility is equipped with modern sewing lines, hot-welding machines and automated inspection tools. This keeps production efficient and helps us meet tight delivery schedules, even on custom orders.
Our engineers and technicians have long experience with dust collectors, liquid systems and industry-specific conditions. They help you match materials to temperature, chemistry and air-to-cloth ratios to avoid unnecessary failures.
From sampling to documentation and shipping, our team responds quickly and keeps information clear. Customers in cement, asphalt, power and water-treatment plants rely on our service to resolve problems without delay.
From the first technical discussion to installation and long-term maintenance, our team stays involved at every stage. We analyze your operating conditions, adjust product designs when needed, and ensure the final filtration setup works reliably in real plant environments. After delivery, our service team continues to provide guidance and troubleshooting support, helping you keep your system stable and downtime low.
With 20+ years of experience and 1000+ global clients, we deliver stable filtration performance and dependable dust-collector operation.
