Fear not the clay bar After a year of staring anxiously at the Meguiar's clay bar kit in my garage, I finally decided that today would be the day to clay my black car. I watched the clay bar video on the Meguiar's website and it looked pretty darn easy, and it was. It also took a lot less time than I thought. Take it from me, if you've never clayed, you can do this without scratching your car. Use plenty of lubricant. The Meguiar's kit comes with their Quik Detailer mist.