Filter Membranes
NORGARD™ Microporous PTFE Films (Zitex) are composed of a microporous form of polytetrafluoroethylene (PTFE) known for its exceptional chemical resistance and thermal stability, making it suitable for handling a wide range of corrosive fluids. These strong, durable membranes are self-supporting and do not typically require non-PTFE polymer backings that could compromise their performance.
When filtering aqueous solutions, pressures above the membrane’s water initiation threshold can be used, or wetting agents like ethanol may assist the process. The material’s inherent hydrophobicity and chemical resistance enable it to block liquid passage below the initiation pressure while allowing gases to pass freely.
These properties make Norgard PTFE films highly effective for hydrophobic venting, providing pressure equalization in liquid packaging containers. Additionally, in gas sensor applications, the porous structure permits gas diffusion to the sensor while preventing liquid ingress or restricting liquid penetration into the device.
PRODUCT FEATURES:
- Chemical inertness – resists attack by virtually all acids, bases and solvents
- Thermal stability – can withstand temperatures as high as 500°F (260°C) and as low as -450°F (-268°C)
- Hydrophobicity allows passage of gases while preventing liquid flow • High wet strength
- Non-contaminating
- Self-supporting
- Non-stick surface for excellent filter cake release
- Self-gasketing – when clamped between solid flanges, ZitexGcompacts to form its own gasket
(CLICK HERE TO DOWNLOAD MICROPOROUS SPEC SHEET)
Matrix specializes in customization to meet the exact specifications required by manufacturers. Our state-of-the-art equipment and expertise ensure precise detail, providing manufacturers with tailored solutions to enhance their product quality and performance.
Matrix Technology is an authorized distributor of Saint Gobain’s products in Canada. We have been working with Canadian engineers and technology companies for 45 years as Canada’s premier engineered materials partner, and have been converting products into customized solutions ever since.