There are two common types of clay lube, quick detailers and a combination of water and shampoo solution. The clay bar lubricant provides a slick surface for you to glide your clay over. If you use the clay on paint without clay lube, you'll notice that the clay won't slide across your paint and you can easily add marring and leave behind pieces of clay on your paint which can be a pain to remove. 

Many detailers use a quick detailer as their clay lube. We recommend using one that has some cleaning power and little or no protective properties. This helps loosen the embedded contamination from the paint and yields great results.#

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