1. Gather the necessary tools:
- A variable speed angle grinder with a diamond grinding wheel (grit size 50 or 60)
- Safety gear (dust mask, eye protection, ear protection)
- Water
- Sponge or spray bottle
- Vacuum cleaner
2. Prepare the work area:
- Clear the area of any furniture or objects that could be damaged.
- Lay down a drop cloth or plastic sheet to protect the surrounding floor from dust and debris.
- Ensure good ventilation by opening doors and windows, or by using a fan.
3. Wear protective gear:
- Put on your dust mask, eye protection, and ear protection before starting the work. Porcelain tile dust can be hazardous, so taking proper safety precautions is crucial.
4. Wet the tile:
- Use a sponge or spray bottle to apply water to the porcelain tile surface. This will help to reduce dust and prevent the tile from chipping or cracking.
5. Start grinding:
- Attach the diamond grinding wheel to the angle grinder and turn it on. Hold the grinder firmly and start sanding the tile surface.
- Move the grinder in a steady circular motion, applying light to medium pressure. Do not apply too much pressure, as this can cause the tile to crack.
- Keep the tile surface wet throughout the grinding process.
6. Sand evenly:
- Continue sanding the tile surface, ensuring that you cover the entire area. Be patient and take your time to achieve an even finish.
7. Vacuum the dust:
- Stop grinding periodically to vacuum up the dust and debris created by the sanding process. This will help prevent the dust from settling on the tiles and make the cleaning process easier.
8. Repeat as needed:
- If necessary, repeat steps 5 to 7 until you achieve the desired smoothness.
9. Clean the tiles:
- Once you are satisfied with the sanding results, use a damp sponge or cloth to clean the tiles and remove any remaining dust or debris.
10. Dry the tiles:
- Allow the tiles to dry completely before walking on them or replacing any furniture.
Remember, sanding porcelain tiles requires precision and care. If you are unsure about your ability to complete this task properly, it is best to consult with a professional.