McKee's 37 Xtreme Iron Remover solves an issue that plagues virtually every vehicle on the road today - iron contamination. Iron contamination is a real issue for old and new cars alike. A brand spanking new car can have HORRIBLE iron contamination and left untreated the iron particles will cause corrosion to the precious thin clear coat paint that comes on a brand new car. McKee's 37 Xtreme Iron Remover is the solution to removing iron particles to maximize the gloss potential of your paint.