The site says that they sell reagents, but apparently special conditions are needed. And probably industrial reagents. I clarified by phone - a smart or tablet remains for at least a day, they say - this is how the process requires. Apparently, simply wiping the screen with “smear” will not work. :(
Who has access to ceresin (refractory paraffin), try to conduct an experiment by dissolving it in purified gasoline and through a spray bottle to apply in several layers on the glass, followed by polishing. I remembered here how in ancient times they made a corrosion-resistant coating on metal surfaces. The effect in my opinion was like that of an oleophobic coating.
My wife hasthere is suchparaffin with him can not think of anything? ;): D : D