By The Guardian – Chief Technical Advisor, GUGAFIX® Construction Chemicals A tile may look perfectly installed when the work is completed. Weeks or months later, however, a tile may become loose, move under pressure, develop cracks around the joints, or eventually detach from the substrate. This is known as tile debonding. But tile debonding is rarely caused by the adhesive alone. A successful tile installation depends on the complete system: TILE → ADHESIVE → SUBSTRATE → APP