Step 1: Diagnose the severity of the problem. Determine the extent of the hollow spots: Surface hollow: Hollow spots or detachment between the adhesive layer and the surface material; Center hollow: Hollow spots within the adhesive layer; Bottom hollow: Hollow spots or detachment between the adhesive layer and the substrate.
Step 2: Choose a solution based on the diagnosis.
Situation 1: Hollow spots can be repaired using the "injection repair method." Use a hollow spot hammer to locate the hollow spots, mark them, drill holes, inject Jin Yu Dongfang hollow spot repair adhesive, cure, and repair the drilled holes.
Situation 2: Loose or detached tiles can be repaired using Jin Yu Dongfang carbon-based interface tile adhesive. Apply a thin layer of Jin Yu Dongfang carbon-based interface tile adhesive to the back of the surface material and the substrate, then bond and compact it.
Summary and recommendations: Small area, not loose: Prioritize injection repair, which is time-saving and labor-saving. Loose or detached tiles: Must be removed and re-laid, and the key is to thoroughly clean the substrate and use Jin Yu Dongfang carbon-based interface tile adhesive. When dealing with this issue, if you lack the necessary skills and tools, it is recommended to hire an experienced professional, especially when handling valuable marble tiles.