Krazy Glue features a brush-on applicator for excellent surface coverage and hard-to-reach places. Krazy Glue Color Change formula dries clean, but goes on purple to make it easy to see where the instant glue has been applied. Glue delivers an instant bond that stays strong on wood, metal, ceramic, rubber, vinyl, leather and plastic.Krazy Glue features a brush-on applicator for excellent surface coverage and hard-to-reach places. Krazy Glue Color Change formula dries clean, but goes on purple to make it easy to see where the instant glue has been applied. Glue delivers an instant bond that stays strong on wood, metal, ceramic, rubber, vinyl, leather and plastic.