On Aug 6, 9:36 pm, "CWLee" wrote:
My driveway has some no-longer-needed marker lines applied a
few years ago, using masking tape and ordinary spray paint
from a can. What suggestions do you have for removing the
paint now?

Thanks.
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CWLee
Former slayer of dragons; practice now limited to sacred
cows. Believing we should hire for quality, not quotas, and
promote for performance, not preferences.

I've used a propane torch and a stiff brass-bristle wire brush. I
melt the paint then immediately brush it off. It will leave black
metallic/carbon marks but the carbon will come off with a scrubbing
using a good concrete cleaning solution and an acid brush once you are
done torching. Then after a year it should all be invisible. With
this method at least nothing petroleum based is "soaking into" the
concrete causing even worse problems.