What should I do if the Guanfudun oleophobic layer is worn out?

A: The oleophobic layer is a consumable. It will gradually wear out with usage time and friction, which is a normal phenomenon. To determine if the oleophobic layer is worn: ① Water droplet test: When water drops onto the film surface, if the water droplets can roll smoothly without leaving any water marks, it is considered good. Water droplets spreading and adhering to the film surface = wear and tear; ② Fingerprint test: Touch the film surface. If the fingerprint is obviously residual and not easy to wipe off, it = wear and tear. ③ Sliding feel: If the screen feels rough and not smooth when sliding, it = wear and tear. The Guanfudun oleophobic layer has a 115° water drop Angle and is wear-resistant for 10,000 reciprocating cycles (tested in the brand laboratory). Under normal use, it can last for 6 to 12 months (about 3 to 6 months for ordinary films). Treatment of worn oleophobic layer: ① Minor wear: It can still be used, but the anti-fingerprint and smoothness will decrease, without affecting the screen display and protection. ② Severe wear (severe fingerprints, very rough sliding) : It is recommended to replace the diaphragm - a 2-piece package costs 159 yuan, and one can be kept as a spare. On average, each piece costs 79.5 yuan. Replace it every 6 to 12 months, and the cost is not high. Methods to extend the service life of the hydrophobic layer: ① Do not frequently wipe the film surface with organic solvents such as alcohol and disinfectant (which will dissolve the hydrophobic layer). Dry wiping with a microfiber cloth is the main method. ② Avoid sliding hard objects such as keys and coins on the membrane surface. ③ Do not repeatedly rub the screen with the back of the matte phone case (be careful when putting it in your pocket). When your hands are very dirty or oily, wash them first before using your mobile phone. Note: ① There are" "Hydrophobic layer spray" The oleophobic layer can be temporarily supplemented, but the effect lasts for a short time (1-2 weeks) and may affect the screen display. It is better to directly replace the film. ② The wear of the oleophobic layer does not affect the film's scratch resistance and impact resistance, but only the hand feel and anti-fingerprint performance decline.