Fluorescent Dye Penetrant Fluorescent supplied by us is offered in acid red color. This is an industrial grade color, which is also used during dye penetrant testing. It can be applied to the surface of a non-porous material and is capable to detect defects which can hamper the quality or integrity of a part. It displays a natural glow when subjected to ultraviolet light. In this way, Fluorescent Dye Penetrant Fluorescent provides advantage whenever there is a task of testing the integrity of any part.