I filled 1/8" saw cuts with ElastiPoxy. http://www.amazon.com/ElastiPoxy-Joint-Crack-Filler-Floor/dp/B008VG02RQ?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00
The ElastiPoxy spread out about 3 inches either side of saw cuts and cured very smooth.
Now before I apply epoxy-coat over...