It depends on the clay bar BH clay is formulated with the surfactents / lubricants to not need lube.....
any other need a lube however a few drops of bog standard car shampoo will usually suffice...
((just dont go using it with Bilt hamber stuff)
any other need a lube however a few drops of bog standard car shampoo will usually suffice...
((just dont go using it with Bilt hamber stuff)