PolyCap AS 36 Capsule Filter SKU: 6705-3604

Nylon Capsule Filters - 6705-3604

For laboratories filtering buffers, reagents, and mixed aqueous-organic solutions at volume, nylon capsule filters provide the chemical breadth and flow performance that dedicated membrane materials cannot. Moreover, naturally hydrophilic nylon membrane within the capsule housing wets immediately on contact with aqueous solutions, eliminating pre-conditioning steps and enabling rapid filtration startup for time-sensitive applications. The result is a filtration workflow that scales efficiently from method development through production, delivering consistent retention performance across the full range of capsule effective filtration areas.

Key Nylon Membrane Characteristics

• Nylon membrane capsules offer natural hydrophilicity across their full pore structure, ensuring complete wetting with aqueous solutions without the pre-treatment steps required by hydrophobic alternatives.
• Nylon capsule filters provide a cost-effective filtration option for high-volume reagent preparation, buffer filtration, and general laboratory applications where ultra-low binding is not the primary requirement.
• The broad solvent compatibility of nylon membranes extends across aqueous, alcoholic, and many organic systems, providing a versatile capsule platform for laboratories processing diverse reagent types.
• Maximum operating pressure of 60 psi provides the differential pressure capacity needed for sustained filtration of viscous solutions and high-flow process streams.
• Nylon capsule filters resist common laboratory solvents including alcohols, esters, and bases, while maintaining stable performance above pH 3 across typical processing conditions.

Key Capsule Construction Features

• Polypropylene housing materials provide documented biocompatibility and low extractable profiles, supporting integration into pharmaceutical and food-processing filtration applications.
• Polypropylene capsule housing provides broad chemical compatibility from pH 1 to 14, resisting the acids, bases, and process chemicals that degrade alternative housing materials.
• Polypropylene capsule housing supports autoclave sterilization at 121 degrees Celsius and withstands gamma irradiation exposure, accommodating both user-sterilized and factory-sterilized device configurations.
• Single-use polypropylene capsule construction eliminates cleaning validation requirements, reducing the regulatory burden and turnaround time associated with reusable stainless steel filter housings.

As single-use filtration continues to replace reusable housings across pharmaceutical and laboratory environments, your capsule filter selection determines both the quality of the filtrate and the efficiency of the workflow. With these demands in mind, if your laboratory processes diverse aqueous and organic solutions, the natural hydrophilicity and broad solvent compatibility of nylon membrane construction simplifies your workflow across application types. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Sterilization Guidance

Validated sterility from the point of manufacture through the labeled shelf life allows immediate deployment in critical filtration steps without additional sterilization procedures.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.

Bubble Point (psi)

10 psi

Burst Pressure (psi)

60 psi

Capsule Format

Polycap AS 36

Compliance Standards

ISO 9001

Construction

Polypropylene

Diameter

3.6 cm

Filling Bell (Yes/ No)

No

Filtration Area

340 cm²

Holdup Volume

10 mL

Inlet Connection

1/4 to 3/8 in. stepped barb

Length

9 cm

Material

Nylon

Max Batch Volume

Medium-volume batch processing

Maximum Operating Pressure

60 psi

Maximum Operating Temperature (°C)

60 °C

Outlet Connection

1/4 to 3/8 in. stepped barb

Pack Count

1

Pore Size (µm)

0.45

Pre-filter Pore Size

Unrated

Prefilter (Yes/No)

Yes

Sterility

Sterile

Sterilization

Do not re-sterilize (autoclavable if sterility expires)

Vent (Yes/ No)

No

Wettability

Hydrophilic

• Environmental Samples - Processing of water, soil extract, and environmental samples requiring both particulate removal and volume capacity.
• Mixed Solvents - Filtration of aqueous-organic solvent mixtures without pre-wetting steps required by hydrophobic membrane alternatives.
• Sample Clarification - Large-volume clarification of environmental, industrial, and laboratory samples prior to analytical testing.
• Buffer Filtration - Removal of particulates from biological and chemical buffers prior to analytical instrumentation or process use.
• Chemical Solutions - Filtration of alcohols, esters, and mild organic solvents compatible with the broad chemical tolerance of nylon membranes.
• Aqueous Processing - Hydrophilic membrane filtration of water-based solutions with immediate wetting and full surface area utilization.