I wonder how durable it is. "The primary Sharklet micropattern is very small – about 3 microns tall and 2 microns wide." How long it lasts would be part of th

I wonder how durable it is. "The primary Sharklet micropattern is very small – about 3 microns tall and 2 microns wide." How long it lasts would be part of the cost vs benefit equation.