3D GLW Series Clay Lubricant 16oz Synthetic Clay Bar Lube The Clean Garage The only time I would recommend using soap as a Clay lubricant is if you are using the clay bar one time and not reusing it later. @jesseaqu Voodoo Ride Vr 1011 16 oz Clay Bar Lube 1. Using insufficient lubrication Clay needs abundant lubrication to glide smoothly without marring. Whether using dedicated clay lubricant or soapy car wash water, apply it generously and keep the