If the proposal is for the auto clay systems the lubricant is Mothers Showtime or Meguiars Quick Detailer. I would think you could also try warm water although the products mentioned do create a slicker surface when using the clay. In my experience neither product leaves residue but my experence is in using them for automobile application only. The clay works very well in removing surface contaminants on a painted surface...not sure how well it can get into grooves. Last...for what its worth I ultimately prefer the Mothers clay product to the Meguiars product. Either lubricant works fine.
Thanks for the idea.
Thanks for the idea.