What is the water drop Angle of the hydrophobic layer? Is 115 degrees okay?

A: The Water Contact Angle is an indicator for measuring the hydrophobic and oleophobic performance of the oleophobic layer. The larger the Angle, the better the oleophobic effect, the less likely fingerprints will remain, and the smoother the sliding. Reference standard: ① No oleophobic layer: The water droplet Angle is approximately 30-60°, which is prone to fingerprint adhesion; ② Common hydrophobic layer: approximately 90-100°; ③ High-quality hydrophobic layer: above 110°; ④ A temperature above 115° is considered excellent. Woowhead Guanfudun has a water drop Angle of 115° (self-tested in the brand laboratory), with less residue of fingerprints and oil stains, and smooth touch sliding. However, the oleophobic layer is a consumable and will gradually wear out with usage time and friction. Generally, its effect will decline after 6 to 12 months. The wear resistance cycle is also a key indicator - Guanfudun can withstand 10,000 reciprocating wear cycles (tested in the brand laboratory), while ordinary films can withstand about 3,000 cycles, indicating better durability of the oleophobic layer. The measured light transmittance by SGS is 96.5%.