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PTFE Membranes
Hydrophobic PTFE Membranes
Evaluate gas and venting requirements in the hydrophobic state. Liquid use requires a separate wetting assessment.
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MEMBRANES / PTFE Membranes
Hydrophilic PTFE Membranes
Confirm treatment stability, fluid compatibility and application limits for hydrophilically treated membranes.
- Product type
- PTFE Membranes
- Material options
- PTFE
- Specifications
- Confirmed by model and process
Images and specifications refer to the indicated models. Contact us to confirm configuration and suitability.
Construction & operating principle
Hydrophilic PTFE uses surface modification to help aqueous liquid enter pores that would otherwise be hydrophobic. The PTFE substrate remains part of the structure, while the modified surface introduces another element in fluid compatibility. Substrate resistance, treatment stability and backing resistance must be considered separately. Prolonged exposure, drying cycles and cleaning can influence subsequent wetting behaviour.
Typical uses
- Evaluation of aqueous or mixed-solvent filtration devices
- Liquid-path development with fewer prewetting steps
- Fine-chemical filtration studies requiring a PTFE substrate
Compare product approaches
| Selection factor | What to compare |
|---|---|
| Surface modification | Hydrophilic behaviour and its persistence vary by product and should be assessed in the actual fluid. |
| Support | Unsupported and laminated films differ in strength, sealing and chemical compatibility. |
| Cleanliness | Sensitive formulations require evaluation of initial rinse background and target recovery. |
Selection information to confirm
| Category | PTFE Membranes |
|---|---|
| Material options | PTFE |
| Filtration objective | Define what to remove and what to retain |
| Rating / Dimensions | Confirm combinations against controlled model specifications |
| Flow / Temperature / Pressure | Specify normal and limiting operating conditions |
| Connections / Seals | Confirm installation interfaces and wetted materials |
| Cleaning / Validation | Confirm the service cycle and acceptance criteria |
These are selection inputs, not verified performance claims for a specific model.
Build a clear application brief
Use the worksheet to collect your operating conditions. Contact us for controlled datasheets, dimensional drawings or validation documents for a specific model.
Product selection worksheet · TXT ↓Request technical documents ↗Use & maintenance
- 01
Initial contact
Establish full wetting as specified and remove bubbles that reduce usable area.
- 02
Continuous use
Track pressure and flow, distinguishing fouling from changes in wetting.
- 03
Restart
Reassess liquid access after drying; cleaning limits cannot be inferred solely from PTFE resin.
Product questions
Can hydrophilic and hydrophobic PTFE be interchanged?
Their gas and liquid behaviour differs even when device connections match.
Does hydrophilicity mean low adsorption?
These are separate properties; demonstrate recovery with the intended target molecules.
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