Product News: Chemicals & Chemical Processing

Hydrophobic PETE Membrane Vent Filters are suitable for electrical enclosures.

Press Release Summary:

Hydrophobic PETE Membrane Vent Filters are suitable for electrical enclosures.

Oct 24, 2017 -

Hydrophobic Polyester Track-Etch Membrane Vent Filters are available in 0.2, 0.4, 1.0, and 1.2µm pore size ratings. Units feature nonwoven polyester support layer and pressure activated adhesives. Products are suitable for passage of air and gases and help to prevent passage of liquid water, particles and microorganisms. Filters offer surface tension >25dynes/cm.

Original Press Release

Introducing: Hydrophobic Polyester Track-Etch (PETE) Membrane Vent Filters

Press release date: Oct 23, 2017

Sterlitech has a new option to consider for your vent filter applications: hydrophobic polyester track-etch (PETE) membrane vent filters. The PETE membrane has been modified using a proprietary process to be rendered permanently hydrophobic. These filters may be considered for vent applications where PTFE or polyolefin membrane filters have been traditionally used. The PETE membrane filters have superior dimensional stability compared to unsupported PTFE membrane filters and have better thermal resistance than polyolefin membrane filters. Additionally, the PETE membrane filters typically have greater water entry pressures than similar pore size rated PTFE and polyolefin membrane filters while maintaining reasonable air flow rates. Finally, the inherently uniform pore structure resulting from the track-etch manufacturing process ensures that PETE membrane filters have exceptional lot to lot consistency.

The hydrophobic PETE membrane vent filters are suitable for a wide variety of applications including vents on electrical enclosures, allowing for passage of air and other gases (such as water vapor) while preventing passage of liquid water, particles and microorganisms. The PETE membrane vent filters are also oleophobic to AATCC118 grade 5 and, consequently, can repel oils and solvents with surface tension >25dynes/cm.

Available in a variety of pore size ratings: 0.2, 0.4, 1.0, and 1.2µm, and backed with a nonwoven polyester support layer, hydrophobic PETE membrane vent filters are easy to handle and can be supplied in custom shapes with pressure activated adhesive. Interested to learn more about this product and its use in your application? Contact Us to connect with an applications specialist.