Expanded polytetrafluoroethylene (ePTFE) membranes for precision venting, filtration, and sterile barrier applications. Precision die-cut to exact dimensions with adhesive backing options for easy peel-and-apply integration.
High-performance venting membranes engineered to protect critical automotive electronics from water, dust, and pressure imbalance. Our ePTFE allows air to pass while blocking liquids, prevents condensation and fogging, and withstands heat, oil, UV, and chemicals — supporting IP67, IP68, and IP69K/IPX9K protection. Higher MVTR grades available for applications demanding maximum moisture vapour transmission.
Typical specification range — custom grades available to specific application requirements. Contact our team for material certification data.
| Material | Expanded PTFE (ePTFE) — composite constructions with TPU, TPV, TiO2, TPA available for sticker formats |
|---|---|
| Structure | Microporous / Biaxially Stretched |
| Thickness Range | 0.02 mm – 1.5 mm |
| Porosity | 40% – 90% |
| Pore Size | 0.1 μm – 10 μm (typical) |
| Water Entry Pressure | > 10 kPa (typical) |
| Air Flow | Customisable to application |
| MVTR (Moisture Vapor Transmission Rate) | Higher MVTR grades available — up to 10,000+ g/m²/24h |
| Oil Resistance Rating | 6–8 (typical, per client-specified test method) |
| Operating Temperature | -65°C to +260°C |
| Chemical Resistance | Excellent — inert to most chemicals |
| Adhesive Options | Acrylic PSA, silicone PSA, dry |
| Delivery Form | Die-cut discs, rings, rectangles, custom shapes and sizes |
| Certifications | IATF 16949:2016 (process); RoHS compliant |
| IP Protection | IP67 / IP68 / IP69K / IPX9K (with membrane assembly) |
| Automotive Standards | AEC-Q200 compatible (upon request) |
ePTFE membrane blocks liquid water and particulate ingress while maintaining continuous breathability for pressure equalisation.
Microporous structure equalises pressure and prevents fogging in headlamps, ECUs, and sensor housings.
Withstands heat, oil, UV exposure, and chemical contaminants common in underhood and exterior automotive environments.
