Filter Cloth

Polypropylene PP Filter Cloth

Outstanding acid and alkali resistance for corrosive slurry below 85℃.

Filter Cloth Series

Polypropylene PP Filter Cloth

Polypropylene (PP) filter cloth is intended for corrosive, wet filter-press duties where acid and alkali resistance matters more than elevated-temperature performance. The heat-set multifilament fabric operates continuously at up to 85°C, covers pH 1–13 and is available in 8–50 μm filtration grades.

MaterialWoven polypropylene (PP) multifilament

Continuous working temperature≤85℃

Transient temperature90℃

pH resistance1～13

Common models750AB-PP, PP-1080, PP-729

Filtration precision8～50 μm

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Product Description

This heat-set multifilament fabric is specified for liquid-solid separation involving pickling liquor, electroplating residue, inorganic salts, metallurgical pulp and acidic or alkaline wastewater. A pH range of 1–13 and low moisture absorption support stable operation in wet, chemically aggressive service. Continuous temperature is limited to 85°C, with a listed transient limit of 90°C. Available 750AB-PP, PP-1080 and PP-729 constructions cover filtration grades from 8 to 50 μm in plain or twill weave. Match the aperture to the measured particle distribution: an unnecessarily tight fabric can blind early, while an overly open construction can delay initial filtrate clarity. Also evaluate cake-release behavior, washing practice and the actual peak temperature before confirming the fabric model.

Key Features

Excellent resistance to acid

Excellent resistance to acid, alkali and most inorganic corrosive media.

Low density

Low density, light weight and good flexibility.

Low moisture absorption with stable filtering

Low moisture absorption with stable filtering performance under wet conditions.

Cost-effective for various corrosive filtration working

Cost-effective for various corrosive filtration working conditions.

Good resistance to many organic solvents

Good resistance to many organic solvents.

Technical Specifications

Parameter	Polypropylene PP Filter Cloth	Custom Range
Material	Woven polypropylene (PP) multifilament	Customizable on request
Continuous working temperature	≤85℃	Customizable on request
Transient temperature	90℃	Customizable on request
pH resistance	1～13	Customizable on request
Common models	750AB-PP, PP-1080, PP-729	Customizable on request
Filtration precision	8～50 μm	Customizable on request
Weave type	Plain / twill weave, heat-set finished	Customizable on request