The 737 NG's supposed Permanent Rain Repellent Coating isn't. I've yet to see any repellent action on the windscreen. There is no improvement compared with any other aircraft I've flown. I've been in moderate rain conditions and get absolutely no help from this coating. I 've given up and have begun applying Rain-X when precipition is in the forcast. Cheap and really worksx
If my company paid extra for this coating, they should get a refund.