Wolfgang Clay Lubricant is specifically designed to be used with Wolfgang Elastic Poly Clay. When applied on a freshly washed surface Clay Lubricant creates an ultra-fine, slick protective layer between the paint and the clay. This allows the clay to glide across the surface, acting as a magnet for any foreign particles left behind after the wash. When this step is complete, your cars surface will actually be exfoliated, purified and free of contamination.