Generally speaking, some high-tech products such as telephones, watches and mobile phones are difficult to improve water repellency and audio performance at the same time. The key lies in how to balance the two, so as to ensure the audio performance while ensuring that reliable water cannot enter. You can use the waterproof and sound permeable film of UNM telephone watch. The film not only ensures that the sound quality is not affected, but also has excellent water repellent performance.

The waterproof and sound permeable membrane of telephone watch is a porous product obtained from the rod and belt extruded from polytetrafluoroethylene and the semi-finished film formed after calendering. It is stretched at the temperature below the melting point and heat set. The porosity of PTFE hydrophobic and breathable membrane can reach more than 85%, and the air can be smooth. The pore diameter of membrane is 0.1-1 μ m. The size of the aperture can be adjusted according to the demand. The aperture is small and the protection grade can reach above ipx7. When used in the protection of electronic products, electronic products can be prevented from being damaged in humid or water environment.

It also has certain applications in food packaging, anti haze screen, air filtration and so on. Through continuous investment in R & D costs and technical strength, UNM's products have passed authoritative testing and certification. We always take it as our mission to contribute to human health and social environmental protection, and do not make continuous efforts. Interested parties are welcome to enter UNM store for consultation and purchase!