Last time I visited my mechanic I told them about my driveway curb and had them check underneath my car for any damage to the bumper caused by scraping. Indeed there was and he said it was also causing alignment issues. I found this product in an attempt to save on future repairs. I don’t have much experience with a trowel, but the material was easy enough to mix and shape. I used a drill paint mixer to mix. I am pretty picky about the way things look so I used painter’s tape to get clean lines around the edges and that worked well. I haven’t had to visit my mechanic in a while and I think it looks alright so I am satisfied with the way things turned out.