PTFE Membranes

PTFE membranes are available in hydrophilic, hydrophobic, unlaminated, and laminated options for a wide range of applications and temperatures.

Unlaminated PTFE filters are chemically and biologically inert, stable up to 260°C (500°F), and naturally hydrophobic; they are very useful for aerosol sampling, air venting, and gas filtration, especially in environments also containing water vapor. These membranes are manufactured through a patented process to form a high-porosity, uniformly thick, thermostable, pure ePTFE structure.

Laminated PTFE possesses the qualities of standard unlaminated hydrophobic membranes, with the added benefit of a backing layer making them thicker and easier to handle. Sterlitech offers our own line of laminated hydrophobic PTFE along with a wide variety of membrane options from Aspire.

For filtering aqueous solutions, we offer hydrophilic PTFE membrane filters from Advantec. With these filters, there is no need to pre-wet the membrane or flush pre-wetting chemicals. The hydrophilic PTFE membranes are able to maintain filtration integrity, reduce interference with biological processes, and maximize shelflife. Sterlitech's hydrophobic PTFE can also be used for filtering aqueous solutions, if pre-wetted with alcohol.

We provide the filters and technical support to help you take your breakthrough product from an idea to a prototype, to commercial scale.