Polyimide P84 Filter Bag

Polyimide P84 Filter Bag Features

CONTENT 100% POLYIMIDE (P84)
INNER TEXTURE POLYIMIDE (P84)
WEIGHT 525 g/m² ± 5%
AIR PERMEABILITY 9,000 – 11,000 lt/dm²/hour (Dp:200 Pa)
THICKNESS 2.0 mm
TENSILE STRENGTH Warp: 130 kgf/5 cm - Weft: 170 kgf/5 cm
SURFACE TREATMENT CALENDER AND GLAZE TREATMENT
OPERATING TEMPERATURE CONTINUOUS 260°C DRY TEMPERATURE
ACID RESISTANCE
GOOD
ALKALI RESISTANCE
GOOD
HYDROLYSIS RESISTANCE
GOOD
SOLVENT RESISTANCE
EXCELLENT
OXIDATION RESISTANCE
EXCELLENT
What Is a Polyimide P84 Filter Bag?

Polyimide P84 filter bags are premium filtration solutions designed for high-temperature and chemically aggressive environments. With a continuous operating resistance of up to 260°C, these bags are ideal for demanding industrial filtration systems.

How Are P84 Filter Bags Manufactured?

Production involves:

  • Needle punching high-performance P84 fibers

  • Thermal stabilization and glazing (calendering)

  • Optional hydrophobic/oleophobic treatment

  • Custom tailoring and strict quality control

This process ensures durability, chemical compatibility, and superior dust release properties.

Durability and Technical Performance
  • Temperature resistance: Up to 260°C continuous, 280°C peak

  • Chemical resistance: Strong against acids, solvents, hydrocarbons

  • Mechanical integrity: Excellent dust release and long lifespan

  • Filtration efficiency: High performance with low-pressure drop

Use in Chemical Applications

P84 filter bags are perfect for aggressive chemical gases and liquids thanks to:

  • Excellent structural integrity in low pH conditions

  • Non-stick glazed surface

  • Long-term filtration reliability

Why Choose Polyimide P84 Filter Bags?
  • Extreme heat and chemical resistance

  • Long service life, low maintenance

  • Cost-effective filtration in demanding systems

  • Energy savings via consistent airflow and cleaning

Common Industries Using P84 Filter Bags
  • Cement and lime kilns

  • Waste incineration

  • Metallurgy and foundries

  • Chemical and petrochemical plants

  • Power generation units

Fora Filter – Trusted Name in Filtration

At Fora Filter, we provide more than just products—we deliver engineered filtration solutions backed by technical expertise and hands-on support.

Let us help you select the right filter bag for your specific process.