Originally Posted by kenchan

i highly recommend against meguair's soft blue clay. it is pretty coarse and will scratch your finish. i speak from experience. it's soft in the beginning but then coarses up for some reason as you knead it. this is the only clay that i had this problem. i use it for glass these days if i have water spots.

for the z's paint i use griot's yellow clay (mud). it's super soft. use disposable gloves.