I have a mosaic table that is uneven because the tiles are different heights. If I could pour a layer of resin over it, say about 1/4 to 1/2 inch, that could create a flat resin layer. But I would need some kind of border/lip around the table to prevent the resin from pouring off. Does anyone have advice on how to do this? Any other tips/advice for using resin to “flatten” out a mosaic tabletop?