These polyester track-etch membrane filters have been treated using a proprietary process to render them permanently hydrophobic and oleophobic. They have superior dimensional stability compared to PTFE membrane filters, and exhibit better thermal resistance than polyolefin membrane filters. Additionally, these PETE filters typically have greater water entry pressure than traditional vent filters with similar pore size ratings. Unlike PTFE and polypropylene, polyester is compatible with gamma irradiation sterilization and can be thermally welded to a wide variety of substrates.
Applications
- Vent filters for electrical enclosures
- Vent filters for microbial retention in medical devices
- Air/gas filtration while repelling liquid water
- Air/gas filtration while repelling oils and solvents with surface tension >25 dynes/cm
Technical Specifications
| Membrane material | Polyethylene terephthalate (PET) laminated with nonwoven PET |
| Pore size | 0.2 µm* |
| Pore density | 2.7x10⁸ - 3.7x10⁸ pores/cm² |
| Air flow | 2.5 - 4.9 L/min·cm2 at 1.0 bar |
| Water entry pressure | ≥3.5 bar |
| Thickness | 90 - 190 µm |
| Oil repellency | AATCC Grade 5 |
| Catalogue No. | Description | Packing size |
| 1300015-30 | Polyester (PETE) Membrane Filters, Hydrophobic, Nonwoven Support, 0.2 µm, 90mm | 30 |
| 1300014-100 | Polyester (PETE) Membrane Filters, Hydrophobic, Nonwoven Support, 0.2 µm, 47mm | 100 |
| 1300013-100 | Polyester (PETE) Membrane Filters, Hydrophobic, Nonwoven Support, 0.2 µm, 25mm | 100 |
| 1300012-100 | Polyester (PETE) Membrane Filters, Hydrophobic, Nonwoven Support, 0.2 µm, 13mm | 100 |
| 1300011-30 | Polyester (PETE) Membrane Filters, Hydrophobic, Nonwoven Support, 0.2 µm, 200 X 250mm | 30 |
