Coatings for glass, namely, chemical-based rain repellent preparation to be applied to windshields; synthetic compositions for forming coatings of borosilicate glass, namely, glass-frosting chemicals; Glass-frosting chemicals; chemical coatings containing quartz for optical glass; adhesives for glass; Chemical coating in the nature of opacifiers for glass lenses; chemical coatings for weatherproofing of camera lenses; Liquid chemical coatings for optical lenses; chemical thickener products fo...