1. Durability
The lifespan of PET protective film can generally reach over one million times, and the reason for this long lifespan is because the switch action is only achieved by the vertical movement of the elastic film. Although the elastic film undergoes millions of peristalsis, the creep amplitude is very small, only 0.1-0.3mm (i.e. switch stroke), and the rationality of material selection far falls short of reaching the yield limit of the film. Therefore, the film material can withstand a lifespan of more than one million times without deformation.
On the other hand, the contacts of the switch are in vertical contact, resulting in minimal wear and tear; The screen printed contacts can form sufficient thickness, and a layer of conductive carbon is added to the silver paste contacts to achieve high wear resistance and self-lubrication. Therefore, the lifespan of PET protective film is more than ten times longer than that of mechanical contact switches.
2. Good sealing performance
Due to the overall sealing structure of the PET protective film, the contacts of the switch are not corroded by harmful gases and are not easily oxidized; It has the characteristics of waterproof and dustproof, making it more suitable for use in various harsh environments.
3. Small size, light weight, and reliable structure
The PET protective film can be arranged and combined into a thin film keyboard in design, with a high setting density. It is a sealed thin sheet structure composed of multiple layers of thin films, and all the connecting and outgoing lines between switches are completed by screen printing in one go, with a total thickness of 1-3mm. Therefore, the volume is reduced, the quality is reduced, and reliability is improved.
4. Rich colors and beautiful appearance
PET protective film can reflect personalization in the design of color patterns based on the user's design concept, and the comprehensive characteristics of material beauty, decoration beauty, and craftsmanship beauty in the decorative effect.
5. Reduce the cost of supporting mechanical and electrical products
The above is the content we have introduced to you about the characteristics of PET protective films. If you are not familiar with this, please feel free to consult our website, and we will have technical personnel to explain it to you.