A couple years ago I try concrete resufacer to fix spalling concrete on sidewalks. It never cured properly and I ground it off w/ the awesome Bosch concrete resurfacer grinder! The porch and sidewalks were done by a supposed professional w/ stardek concrete! The porch came out beautiful w/ texture! The sidewalks got 2 coats thanks to rain and are too smooth. The pro came back and resealed w/ sand in sealer and even came back and shot some stardek on w/o sealing it! Well the unsealed stardek is wearing off. Plus some chipped off at expansion joints! I actually cut some joints deeper w/ a Bosch top handle wormer and a diamond blade! I've been fixing areas and joints that chipped w/ concrete caulk w/ good results. BUT the sidewalks are still too smooth! Any suggestions? And is stardek a good product?