A floor curing apparatus is disclosed, including a housing, an ultraviolet lamp, and an offset wheel arrangement including a pair of inner drive wheels configured to rotate and alternately be driven about a first common axis and a pair of outer drive wheels configured to rotate and alternately be driven about a second common axis. Each of the pair of outer drive wheels are positioned a first predetermined distance outward from each of the pair of inner drive wheels, and the first axis is offset from said second axis by a second predetermined distance. The floor curing apparatus also includes a shutter device a linear actuator configured to drive a support element in a direction away from the ultraviolet lamp, the support element affixed to a plurality of rods configured to draw the shutter device away from the ultraviolet lamp.