i just bought some ceramic tile for a border on the bottom and some 1x2 glass mosaics to fill the rest of the space up my problem is that they sold me adesilex to apply it but when i read the instructions it says not to apply to plywood . on one side i need to apply to painted drywall and on my other wall is plywood and one section is like a doorskin backing. also the instructions say not to apply to glass with a decorative backing . my glass has a mesh on the back and each tile has a white coating too sort of like paper and have clear plastic on the front that gets peeled off after setting. any info or tips greatly appreciated thanks