The production of decorative stone involves two main stages: mining and processing. Before the stone is put into use, there are several preparatory steps aimed at addressing internal and external factors that may harm its structure, performance, color, shine, texture, pattern, or quality. This process is known as pre-treatment. Proper pre-treatment can significantly extend the lifespan of the stone, preserve its natural beauty, prevent contamination, enhance overall quality, and improve economic returns. These steps typically include cleaning, rehydration, backing, coloring, and other treatments applied during the manufacturing phase—before the stone is installed or used.
Stone Cleaning
Stone cleaning refers to the process of removing, repairing, and restoring damage caused by internal or external factors such as discoloration, fading, deformation, or deterioration. This helps achieve the desired aesthetic effect. Cleaning is usually divided into two types: pre-cleaning and post-cleaning. Pre-cleaning takes place during the mining and processing stages, where surface pollutants and rust are removed. This ensures a clean surface, which is essential for subsequent processes like bonding, back meshing, dyeing, and protection. It allows for more effective and high-quality processing.
Post-cleaning, also known as post-use cleaning, occurs when the stone has already been installed and visible issues arise over time. This includes using chemical agents, water, gas, particles, ultrasonic waves, or lasers to clean the surface. Among these, chemical cleaning is the most widely used due to its efficiency, speed, and cost-effectiveness. It is common practice to use chemical compounds to clean architectural decorative stones, making it an essential part of surface treatment.
Stone Care
After installation, proper maintenance is crucial to preserve the stone's appearance and durability. This process, often referred to as stone conservation or protection, involves applying chemical treatments to shield the stone from external threats. Over time, stones may develop issues like oil stains, water marks, alkali efflorescence, or white spots, all of which can reduce their visual appeal. Regular cleaning, polishing, and the application of protective coatings help eliminate these problems and prevent them from recurring. The most commonly used method today is applying a chemical protective agent to finished stone surfaces, offering long-term protection and maintaining the stone’s original beauty.
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