Pinnacle Natural Brilliance PIN-504 Clay Lubricant, 128 fl. oz. The function of clay Lubricant is to provide a slippery barrier between the clay bar and the paint surface. The high lubricity formula is a blend of oils and wetting agents that are literally wetter than water. The Lubricant will not alter the paint surface in any way. Once you've clayed, wipe away the Lubricant.