We trimmed floor tile on the wall side edge by cutting the floor tile in half, leaving a raw edge going up wall. The tile edge is 3/8" thick. The tile guy put cheap plastic edging on top, and the look ruins the whole thing! Help please. Can I paint the raw edge or is there a ceramic or other 3/8" that can be applied on top, but not plastic stuff. Thank you.

U can use a cap tile, but it may not match your tile.

Or u can use caulking the same color as grout. Cut an edger out of hard rubber or plastic to get even bead across top.

Good luck

Chuck