Gtechniq Unlike regular rain repellent coatings that adhere to the surface of the glass using relatively weak physical bonds, G1 uses a chemical bond which gives G1 unrivalled durability.
G1 will only work on glass substrates and so, it will not work on modern headlight lenses which are made from polycarbonate. For these you will need to use G5 Water Repellent for Glass and Perspex.
Choose the 15ml bottle for windscreens only, but the 100ml bottle if looking to use on all of your car’s glass. G1 is supplied with G2 Residue Remover.