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Hi all, I’m replacing a few cracked tiles and noticed in some that the tile comes away easily ( no back adhesive) but the adhesive on the floor ( concrete ) is well and truly adhered. As I chip away at the adhesive, or use a blade on a multi tool, it really is part of the floor. My question is… If there is enough space for new tile adhesive across the full tile, do I need to try to chisel the old adhesive off. I was going to remove all loose adhesive, scrape what I can off, I’ve then cut in some cross marks for more adhesion, then paint with primer and simply re- glue a tile over the top?
id welcome any experienced thoughts? It is well and truly bonded to the concrete, so will a primed surface and tile glue be sufficient- ensuring there is full coverage of new glue?
