By The Guardian – Chief Technical Advisor, GUGAFIX® Construction Chemicals The Guardian's Complete Guide to Tile Adhesives How to Select, Apply and Troubleshoot Tile Adhesives By The Guardian – Chief Technical Advisor, GUGAFIX® Construction Chemicals Choosing a tile adhesive should never begin with the question: "Which adhesive is the strongest?" It should begin with: "What does this installation actually require?" The tile, substrate, location, exposure, tile size, movement,