Hydrophilic PTFE Membrane Filters in Australia: Reliable, High-Performance Filtration for Aqueous & Solvent Applications

21, Jan 2026

As laboratory workflows and analytical processes across Australia become increasingly advanced, the demand for filtration media that can handle both aqueous and organic solvents with equal efficiency continues to grow. Among the wide range of membrane types available today, hydrophilic PTFE membrane filters stand out as one of the most versatile and reliable solutions. Designed for labs that require exceptional chemical compatibility, fast flow rates, and robust physical properties, these membranes are a preferred choice for chromatography, sample preparation, solvent filtration, and environmental testing.

CoPure supplies high-quality hydrophilic PTFE membrane filters as part of its expanding portfolio of membrane filters in Australia, providing scientists, quality control teams, and analytical labs with a dependable and cost-effective solution for demanding filtration needs.

What Makes Hydrophilic PTFE Membranes Unique?

Traditional PTFE membranes are hydrophobic, making them ideal for filtering gases, corrosive chemicals, and non-polar solutions. However, hydrophobic PTFE requires a pre-wetting step (typically using methanol or ethanol) before aqueous filtration—adding time, complexity, and variability to lab workflows.

Hydrophilic PTFE eliminates this problem.

Key Advantages

  • Instant wetting with water — No methanol pre-wet required
  • Universal chemical compatibility for both polar and non-polar solvents
  • Low extractables, ensuring clean filtrates suitable for analytical workflows
  • High thermal resistance up to 140°C
  • pH stability from 1 to 14, allowing use with strong acids, bases, and aggressive chemicals

These advantages make hydrophilic PTFE one of the most robust membrane types available for diverse laboratory applications.

Technical Specifications

CoPure supplies hydrophilic PTFE membranes in multiple sizes and pore ratings to support various instruments and workflows.

Available Dimensions

  • Diameters: 13, 25, 47, 50, 60, 90, 100, 110, 150 mm
  • Pore sizes: 0.1 µm, 0.22 µm, 0.45 µm
  • Pack sizes: 25, 50, and 100 pcs/pk
  • Delivery condition: Non-sterile
  • Maximum operating temperature: 140°C

This level of configurability allows CoPure to support both routine sample filtration and large-volume industrial pre-filtration processes.

Performance Data: Filtration You Can Trust

Hydrophilic PTFE membranes from CoPure undergo rigorous bubble point and flow rate testing to ensure consistent pore structure and reliability.

Pore Size Bubble Point (Water, 20°C) Water Flow Rate (s/50 ml/12.68 cm², –30 KPa) Thickness
0.1 µm ≥300 KPa ≤120 s 200±60 µm
0.22 µm ≥300 KPa ≤55 s 210±70 µm
0.45 µm ≥180 KPa ≤30 s 210±70 µm

What this means for Australian laboratories:

  • Stable bubble points confirm membrane integrity and precise pore size
  • Fast filtration times optimise sample throughput
  • Consistent membrane thickness supports predictable performance

These metrics align with international QC standards used in analytical laboratories, the pharmaceutical industry, and environmental monitoring.

Hydrophilic PTFE Membrane Filters in Australia | CoPure

1. Hydrophilic Surface for Immediate Aqueous Filtration

No need for time-consuming pre-wetting steps—simply assemble, filter, and proceed with your workflow.

2. Broad Chemical Compatibility

The membrane resists:

  • Strong acids
  • Strong bases
  • Alcohols
  • Organic solvents
  • Water-miscible solvent blends

This versatility reduces the need for multiple membrane types in the lab, lowering procurement and storage complexity.

3. Very Low Extractables

Hydrophilic PTFE is ideal for:

  • HPLC sample preparation
  • GC/LC analysis
  • Sensitive analytical workflows
  • Disinfection or solvent purification

Low extractables protect the integrity of analytical data by preventing contamination and ghost peaks.

Where Hydrophilic PTFE Membranes Excel: Key Applications

Hydrophilic PTFE is engineered to support both aqueous and organic filtration, making it one of the most flexible membrane filters available in Australia.

1. HPLC and Chromatographic Sample Prep

Works seamlessly with:

  • Acetonitrile
  • Methanol
  • Water
  • Solvent mixtures

The membrane’s low extractable profile prevents interference in UV, fluorescence, and mass spectrometric detection.

2. Filtration of Water-Miscible Organic Solvents

Particularly suitable for:

  • Alcohol-based disinfectants
  • Solvent blends used in analytical chemistry
  • Cleaning solutions
  • Mobile phase filtration

3. General Laboratory Filtration

Ideal for:

  • Buffers
  • Media
  • Environmental water samples
  • Chemical formulations

4. Disinfectant & Chemical Filtration

High chemical resistance allows the membrane to handle aggressive pH conditions without compromising performance.

How to Choose the Right Membrane Filter: A Practical Guide

Choosing the correct membrane is essential for achieving accurate, repeatable results. Here’s a quick decision framework:

Application Recommended Membrane
Buffer / Medium Filtration PES membrane
Low protein adsorption PVDF membrane
Solvent mixtures Nylon or Hydrophilic PTFE
Non-polar (hydrophobic) solution Hydrophobic PTFE
Polar (hydrophilic) solution Nylon
Corrosive solutions Hydrophobic PTFE
Gas filtration Hydrophobic PTFE

Hydrophilic PTFE is the most reliable option when both aqueous and solvent compatibility are required in a single membrane.

Why Australian Laboratories Choose CoPure

1. High-Quality Membrane Filters Backed by Global Standards

CoPure partners with industry-trusted manufacturers to ensure consistent performance across every lot.

2. Extensive Stock and Fast, Australia-Wide Delivery

With a strong supply network and Melbourne-based distribution, labs can expect quick turnaround times.

3. Technical Guidance from Filtration Specialists

CoPure provides support for:

  • Method development
  • Membrane selection
  • Compatibility assessments
  • Custom pack sizes and procurement

4. Cost-Effective Options for Both Small Labs & High-Volume Users

With pack sizes from 25 to 100 filters, CoPure supports R&D units, QC labs, universities, and industrial facilities.

As filtration demands expand across analytical chemistry, pharmaceuticals, environmental monitoring, and research, hydrophilic PTFE membrane filters have become an essential tool for Australian laboratories. With outstanding chemical durability, instant wettability, and fast flow rates, these membranes deliver the reliability needed for modern workflows.

CoPure offers one of the most comprehensive selections of membrane filters in Australia, ensuring laboratories have access to high-performance hydrophilic PTFE filters backed by technical expertise and nationwide delivery.

For Further Enquiry Contact- sales@copure.com.au 

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