1. The ground is dry—This operation is divided into two cases. First, the water stain in the original stone joints is heated using a far-infrared lamp to evaporate the moisture. Second, for other flat areas with moisture, natural drying is applied. As a result, the water stains were completely removed, which was both cost-effective and efficient, and the customer expressed great satisfaction with the outcome.
2. Filling the stone joints—Using a caulking method to prevent water penetration is an essential preventive measure. It's crucial to pay close attention to this step. The caulking material should have strong adhesion, not flake, be waterproof, and allow for grinding and polishing afterward. We used a German super marble crack repair agent, following the proper procedure by filling the gaps level with the stone surface, ensuring even coverage to avoid any missed spots. After more than two hours of drying and curing, the joints were well sealed.
3. Leveling, grinding, and polishing—Due to previous waterproof treatments that caused discoloration on the stone surface, we didn’t directly proceed with standard leveling. Instead, we first used steel wool and specialized equipment to gently grind the surface, revealing the original white background beneath the discolored layer. Fortunately, since the protective agent had only lightly penetrated the stone, this approach worked very well, and the discoloration issue was effectively resolved. Another option would be to use diamond grinding discs and water-grinding discs, gradually grinding and polishing the surface for a smooth finish.
4. Rust and yellow spot treatment—Following the overall plan, we first removed surface rust using steel wool, then applied a special marble rust remover. The process included cleaning the surface, drying it, covering it with a white paper towel, applying the rust remover, sealing it with plastic film, allowing it to age for 3 hours, rinsing with a neutral detergent, and drying thoroughly. If the rust wasn't fully removed, it could be reprocessed. This ensured a clean and bright stone surface.
5. Waterproofing and protection—To prevent future issues like water stains or rust, the customer was interested in our plan. After grinding, we learned from past experiences of discoloration and selected a better waterproofing agent. We tested it on the same type of stone to evaluate its effectiveness and check if it affected the color. Based on the absorption rate, we determined the appropriate application amount. After completing all preparations, we applied the waterproofing treatment on a large scale. The main steps involved: 1) cleaning the stone surface, 2) ensuring it was fully dry, 3) evenly applying the protective agent without over-application or uneven brushing, as too much could affect appearance and cleaning, and 4) allowing it to dry naturally for over 24 hours in a ventilated area.
6. Crystal surface treatment—Once all previous steps were completed, we performed the crystal surface treatment. We used a Spanish crystal hardening agent, applying it according to the recommended process. With the help of specialized equipment, we pressed the polishing agent and performed low-speed polishing, triggering a thermal reaction that formed a hard, non-slip, and durable surface.
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Ningbo Huaguang Precision Instrument Co., Ltd. , https://www.hgopt.com