Hey vernski! I did try the clay bar stuff last summer but I got no results with it. I think it's more for shining up paint whorls and stuff? I will say the stuff doesn't dry out. I gave it to the babies to play with and they're still building sharks and little army men with it
Maybe I'll just try some really high grit sandpaper and soapy water. I just dread having bondo rivers running through the yard