Even when this had been actually so cool, we are skeptical and doubt the veracity of the information.
First, it is nearly not possible for a retailer to info about Apple's next-generation iPhone to come back. Even Apple's suppliers do not have entry to such data. In addition, a know-how that sounds so promising, not only anyway put in. This check requires a sure time, so nothing actually goes on contained in the machine damaged.
Here you can watch its video proof waterproof coating by Liquipel :-