Smooth your paint remove the bonded contaminants with the McKee's 37 Universal Clay Mitt. Contaminants leave the surface rough and gritty. Use the clay mitt to create a clean foundation for a protective coating to adhere. Contaminants like bug splatter, industrial fallout, paint over spray, rail dust, and tree sap can damage your car's paint if not removed properly. Medium grade is good for older or heavily contaminated vehicles. The McKee's 37 Universal Clay Mitt has a surface area that's 10 times larger than a clay bar. Wear the clay mitt on your hand as you would a wash mitt. If it does get dropped on the ground, it can be rinsed off.
Two ways of use
The McKee's 37 Universal Clay Mitt can be used one of two ways. The first would use car wash soap as the lubricant. For this application you would use the mitt after you wash the vehicle, but before you dry it. The same bucket you used for the wash process would suffice unless the soapy water was heavily contaminated. The second would be the more traditional method, while the car is dry. You would use a clay lubricant such as McKee's 37 Universal Clay Lubricant, and simply work panel-by-panel removing the lubricant with a microfiber towel after you finish each section.
Two grades are available, one medium and one fine. For your typical detailing, most find the fine grade is more than adequate. For surfaces with heavier and long term contamination, use the medium grade.