ULTRACAST XT- Clear Coating and Casting Resin (2:1 Mix Ratio) for High Heat Resistance & Large Surfaces; Premium, ASTM Nontoxic, Epoxy Resin (3 KG Kit: 2 KG Resin & 1 KG Hardener)
It's better if you go to ace hardware and have plexiglas cut for you to size, it doesn't yellow and takes less scratches and can be replaced. it already has scratches just from shining it imagine with dominos which have a metal center.