Rain Off Glass Sealant is a hydrophobic sealant that bonds to the glass, primarily on the windscreen but on other windows and glass surfaces too, to repel water and cause beading. This means that when being driven at speeds over 30mph, water runs off the glass naturally, minimising the use of the wipers and therefore increasing the life of the wiper blades.
The glass sealant evens out the tiny imperfections and peaks and troughs in the natural formation of glass, providing a completely smooth surface that allows rain to run easily off the glass, or to bead when the vehicle is static.
The effect lasts up to 3 months in the winter and 6 months in the summer, and the 500ml product will cover at least 30 average windscreens.