What clay removes
Iron particles from brakes and rail lines, tree sap mist, paint overspray and tar — all bonded too tightly for soap.
The plastic-bag test
Put your hand in a thin sandwich bag and glide it over clean paint. Rough or gritty spots mean clay is needed.
How it's done
With a lubricant spray, the clay glides over the paint and picks up contaminants. Follow with protection, since claying removes wax.


