Feltpen Fadeout (FPFO) is designed for the final removal of shadows and traces of inks and dyes and other graffiti markers from all surfaces; porous and nonporous. Feltpen Fadeout will also remove some spray can stains / ‘ghosts’ (particularly reds) from delicate and porous surfaces, and is designed to work in conjunction with World’s Best Graffiti Removers. Feltpen Fadeout can be diluted with water to use as a high foaming cleaner for the removal of organic stains dirt and fats as well as sanitize surfaces killing microorganisms (germs, bacteria, fungi, etc.)