Krazy Glue - Color Change Formula - Tube - Krazy Glues Color Change Formula contains a purple tint when first applied, then dries clear and strong instantly. So, it's easy to see exactly where you've applied Instant Krazy Glue for goof-proof fixes. This glue will bond wood, pottery, metal, ceramics, rubber, vinyl, leather and plastic. It has a one-drop applicator and a stay fresh container for easy travel and storage. For an instant bond that stays strong, nothing beats Krazy Glue!