| Material | Description | Pore Size (µm) | Features | Application |
|---|---|---|---|---|
| Cellulose Acetate | Internally Supported Cellulose Acetate | 0.22 – 5.0 | Lowest Binding Material Available Highest Throughput Strength and Dimension Stability Uniform Pore Structure Hydrophilic | Tissue Culture Media Sterilisation Protein and Enzyme Filtration, Sterilisation Biological Fluid Filtration, Sterilisation |
| Mixed Cellulose Esters | Unsupported MCE | 0.1 – 8.0 | Consistent Flow Rates High Throughputs Uniform Pore Structure Hydrophilic | Aqueous Filtration Microbiological Analysis Sterility Testing Gravimetric Analysis With Ashing Technique Particulate Analysis |
| Nylon | Internally Supported Nylon | 0.22 – 20.0 | Naturally Hydrophilic Wide Chemical Compatibility Range Extremely Low Extractables Strength and Dimensional Stability | Sterilisation, Clarification of Aqueous and Organic Solvent Solutions HPLC Sample Preparation |
| Polycarbonate | Polycarbonate | 0.01 – 20.0 | Smooth Flat Surface Precisely Controlled Cylindrical Pores Narrow Pore Size Distribution Transparent | Chemotaxis Accurate Separation of Sample by Size Epifluorescence Cytology Cell Biology Microscopy |
| Polyester | Polyester | 0.03 – 10.0 | Similar to PCTE with Better Solvent Resistance Chemically and Biologically Inert Low Fibre Release More Defined Pore Size and Greater Retention Efficiency Than Glass Prefilters | |
| Polypropylene | Polypropylene Prefilters Polypropylene Filter | 0.45, 0.8, 1.2 0.1, 0.22. 0.45 | Chemically and Biologically Inert Low Fibre Release More Defined Pore Size and Greater Retention Efficiency Than Glass Prefilters Chemically and Biologically Inert Wide Chemical Compatibility Range Extremely Low Extractables | Prefilter to Extend Final Filter Life Final Filter for Noncritical Filtrations Prefiltering Solvents and Acids Sterilisation, Clarification of Organic Solvent Solutions HPLC Sample Preparation |
| Polyethersulphone | Polyethersulphone | 0.22 – 5.0 | Low Protein Binding Low Extractables Autoclavable Wide Chemical Compatibility Range Strength and Dimensional Stability | Tissue Culture Media Sterilisation Protein and Enzyme Filtration, Sterilisation Biological Fluid Filtration, Sterilisation |
| Teflon | PTFE laminated onto a Polypropylene Support Pure PTFE (no support) | 0.22, 0.45, 1.0 0.22, 0.45, 1.0 | Naturally Hydrophobic Compatible with Strong Acids and Aggressive Solvents Improved Durability and Handling Naturally Hydrophobic Compatible with High Temperatures, Strong Acids and Aggressive Solvents Chemically and Biologically Inert | Filtration of Strong Acids and Aggressive Solvents Venting Applications Filtration of High Temperature Acids and Solvents |