"Super Blue" is a cyanoacrylate dye that is UV Sensitive. At last, a SAFE design, yet effective super glue dye! 'Super Blue for Super Glue' is an aqueous formula made for street use. It appears clear when applied and provides a brilliant blue fluorescence under ultra-violet emission. "Super Blue" is non-staining and non-flammable, making it an excellent tool for street or lab use. This dye may be used over and over until contamination becomes a factor. Catalog #216.