Color change brush-on glue offers an instant bond that stays strong on various surfaces such as wood, metal, ceramic, rubber, vinyl, leather and plastic. Brush-on applicator offers superior surface coverage that facilitates control on large surfaces and in hard-to-reach areas. Goes on purple so it's easy to see and then dries clear. Brush stays fresh in the no-clog bottle and the bristles of the brush do not stick together for hassle-free use.