Roll Goods — Filter Fabrics
Polyamide (PA / Nylon) Filter Fabric
Polyamide offers the best abrasion resistance of any standard filter polymer, combined with outstanding elasticity and excellent alkali resistance. The preferred choice for fine particle retention in pharmaceutical, food, and fine chemical processes.
Material Properties
Superior Abrasion Resistance
The highest abrasion resistance of all standard filter polymers. Ideal for abrasive mineral slurries and high-cycle applications.
Temperature Range
Continuous operation up to 120 °C (PA6) or 130 °C (PA66). Good dimensional stability at elevated temperatures.
Alkali Resistance
Good resistance to alkalis and many organic solvents. Not suitable for strong mineral acids (pH < 3).
Moisture Absorption
PA absorbs moisture (4–8%), which can slightly affect dimensional stability in wet environments. Factor into specification.
Fine Particle Retention
Multifilament PA fabrics achieve excellent fine particle retention, down to single-digit micron range in satin weave configurations.
FDA Compliant Grades
Available in food-contact compliant grades (PA6, PA66) for dairy, beverage, and pharmaceutical filtration.
Available Specifications
Representative range — custom specifications on request.
| Yarn Type | Weave | Weight | Air Permeability | Thickness | Typical Application |
|---|---|---|---|---|---|
| Monofilament | Plain | 200–350 g/m² | 250–900 L/m²/s | 0.2–0.7 mm | Precision screening, mesh filters |
| Monofilament | Twill | 250–450 g/m² | 180–650 L/m²/s | 0.3–0.9 mm | Abrasive slurries, high flex |
| Multifilament | Satin | 300–600 g/m² | 50–280 L/m²/s | 0.5–1.2 mm | Fine particle retention, pharma |
| Multifilament | Plain | 280–550 g/m² | 70–400 L/m²/s | 0.4–1.1 mm | General fine filtration |
| Staple Fibre | Twill | 400–750 g/m² | 30–150 L/m²/s | 0.7–1.5 mm | Deep-bed filtration, high retention |
Typical Applications
Fabricated PA Products
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