Originally Posted by svo

PREP THE CLAY BAR...

I like to start by preping the clay bar. It is sometimes a bit hard, so to soften if up I roll it into a ball and then I spend 3-5 min. throwing it on to the cement repeatedly to soften it up a bit. You'll be able to tell when it is nice and soft when you throw it an it doesn't roll or bounce on the cement - or when there is a nice even patern of specs from the cement in the clay.