Maintenance and Renovation of Tiles in Xi'an Mobile Toilets

The maintenance and renovation of tiles in Xi'an mobile toilets require a combination of daily cleaning, protective treatment, partial repair, and renovation methods. The specific operations are as follows:

1. Daily Cleaning and Basic Maintenance

1. Surface Cleaning: Use a soft-bristled brush or mop to remove dust and debris from the tile surface, avoiding scratches caused by hard tools (such as steel wool).
2. Stain Removal: For common stains (such as water scale and soap scum), choose a neutral cleaner to gently wipe them away, avoiding acidic or alkaline cleaners that can corrode the glaze. Promptly clean up water stains to prevent mineral deposits from forming stubborn stains.
3. Grout Maintenance: Regularly inspect the tile grout. If the grout is falling out or turning black, remove the old grout and refill it with waterproof materials (such as caulk or epoxy grout) to prevent water seepage and damage to the substrate.

2. Surface Protection and Repair

1. Scratch Treatment: If there are minor scratches on the tile surface, use a tile repair agent for local treatment. Before repairing, test the effect in an inconspicuous area to ensure that the repaired color matches the original tile.
2. Protective Coating: Newly laid tiles can be coated with a special protective agent (such as a nano-hydrophobic coating) to form a protective film that reduces stain penetration and wear, extending the service life.

3. Partial Replacement and Repair

1. Tile Replacement: When tiles are severely damaged (such as cracking or falling off), carefully remove the damaged tiles, clean the substrate, and replace them with matching new tiles. Ensure flatness during pasting and use moisture-resistant adhesive materials (such as tile adhesive).
2. Grout Renewal: If the issue is only with the grout, remove the old grout and refill it with waterproof materials to prevent mold growth.

4. Surface Renovation Methods

1. Tile Renovation Paint: Suitable for situations where the surface is worn but the substrate is intact. Choose a product suitable for bathroom environments (moisture-resistant and corrosion-resistant) and strictly follow the construction instructions to ensure a uniform coating.
2. Tile Overlays: Can be directly pasted on the original tile surface, with simple construction and low cost. However, ensure that the materials meet moisture-resistant requirements to avoid detachment after long-term use.
3. Low-Cost Renovation Techniques: Include deep cleaning (using professional cleaners with a hard-bristled brush or high-pressure water gun), surface repair (filling scratches with repair paste and polishing), and grout renewal (filling with caulk or epoxy grout).

5. Renovation Precautions

1. Waterproofing Assessment: Before renovation, check whether the waterproof layer is intact. If there are any issues, deal with the waterproofing first to avoid later water seepage causing tile hollowing or detachment.
2. Material Selection: Xi'an has a dry climate with large temperature differences. Choose materials with good moisture resistance and temperature adaptability (such as ceramic mosaics or glass mosaics).
3. Construction Ventilation: Maintain ventilation during construction to reduce the impact of harmful gases (such as grout volatiles) on the human body.
4. Time Arrangement: Arrange the construction time reasonably to avoid affecting the normal use of the mobile toilet.