Slip

It is basically clay mixed with water - thickness of maybe yoghurt but depends on the purpose and the personal preferance, it can vary. Slips are used as: adhesive: when you are putting a handle to make a mug, you will score both sides (making hatching lines with a fork or a needle) then put slip in between the handle and the mug to let them join. medium for stains: you can paint on your piece with something called "stains" Metcalf sells them in many many colours and you buy them in little zip lock bags. They are very cheap and you don't need a lot. You can mix the stain with slip to paint because the stains are powdered.