Any easy way to remove tire marks from concrete? Like very long black streaks in the stop zone from cars without anti lock brakes. One of the stipulations of the site is that we cannot leave tire marks on the concrete. Apron we have is almost 1000' square just for the course. Pit and grid are next to the concrete.

 

Power washer.

 

Wow, autocross without tire marks? That's a pipe dream!

Time seems to work well; they seem to fade away eventually even if you do nothing at all. Did they give you a time limit for removal?

 

Time is not on our side as the powers that be have that bee in their bonnet about tire marks. This is an active apron that the powers want to develop and my guess is that tire marks will make it look like an abandoned area. There are really no marks on the concrete anywhere but after the lights. Not even from the spins (wifey did a 360 just before the finish, no marks)
They managed to clean up a burnout last year with wire wheels but this stripe is huge long and many stripes wide. One tire fire braking.