after a wash
DIY Details' Fine Grade Clay Towel safely removes medium to heavy, above-surface, bonded contaminants. These include: tree sap, water spots, paint overspray, bugs, road debris, and industrial fallout. Measuring 12" x 12", this microfiber flexible edge allows the synthetic clay to effortlessly...
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use over and over and over , saves you buying clay that gets thrown away
or , what i use is a clay blok from chemical guys with their clay lube
you've probably got stuff you can use as clay lube, do not use water its not slick
you can also do iron remover at the same time