Elder Engineering - Plastics Engineering

Zitex

ZITEX® 100% PTFE Membranes
Zitex membranes act as "depth filters" with high retention efficiency and non-clogging characteristics.

Unlike cellulose filter paper, the PTFE interstices are bonded together, resulting in a stabilized pore configuration. This unique combination of depth filter and screen characteristics creates a highly effective filter media.

Zitex membranes have a better-controlled pore size distribution than other high-temperature, chemically-resistant membranes with similar pore size ratings.

The non-stick nature of Zitex provides excellent filter cake release properties. Zitex may be sterilized with steam or bactericidal solutions. It is suitable for chromatography solvent filtration and degassing.

Zitex membranes are inherently hydrophobic, which makes them ideal as venting devices. However, aqueous solutions may be filtered by using pressures exceeding the membrane's water initiation pressure, or with the aid of wetting agents, such as methanol or ethanol. Disks are interleaved with separators for cleanliness and ease of handling. Sheets and rolls are available by special order.

• Ultra-pure; chemically inert
• Use for filtration of corrosive liquids or gasses up to 204°C (400°F), depending on application
• Compatible with virtually all solutions
• Non-clogging
• Fine and extra-fine grades may shrink at temperatures above 66°C (150°F)