QWIKjoint 300 is a new generation polyurea joint filler that cures faster than existing polyurea fillers. It is unaffected by the heat buildup during the initial curing process, which can be a problem when filling wide and deep joints. It is easy to install, self-leveling, low-odor, and does not require a primer. The Euclid Chemical Co. 800-321-7628. www.euclidchemical.com