Epoxy Resin is a great material to use for projects that require a “clear” finish. There are many brands and mixes of material to use, and different techniques allow for different outcomes.
These processes require a lot of testing to ensure that you have a great outcome. Bubbles in the epoxy are a big problem.
From Youtube Seth Weidner
Drink coasters made from clear casting epoxy resin with logos, bottle caps, and personal vinyl designs embedded in them.