NV PURIFY is a new advanced type of clay lubricant that not only reduces friction between the clay bar and the paintwork but also chemically breaks down iron and other contaminants to give you a more thorough decontamination process. PURIFY specifically targets iron fall out and can help remove stubborn contamination from the paintwork. It also has an advanced lubrication formula that allows the clay bar to effortlessly glide over the surface. This combination not only gives you a much deeper de-contamination process but helps prevent marring through the claying process.