for the expansion joint and 3/8-in ... to 1/2-in. layer of caulk top out just below the concrete surface. Using a metal scraper can let you avoid scraping your knuckles on the concrete.

Nomaflex extends the service life of concrete by acting as a filler for full-depth expansion joints in sidewalks, streets, driveways, highways, airport runways and other applications. For the last ...