In general, preventing stone contamination is more important than cleaning, as routine long-term maintenance tends to be more effective than emergency cleaning. Contamination and soil stains can be reduced and prevented through proper design, material selection, careful construction, and maintenance. Proper design refers to being mindful of the following events that can lead to contamination of sandstone products:

During the flat processing of decorative products, factors such as outwardly sloping coping stones, sections without requirements for drainage through wall cavities, structures where waterways narrow, water flowing over concrete, glass, or other materials, and water reaching sandstone surfaces are all prone to polluting the sandstone products. In special environments, materials matching the nature of the stone should be chosen. Combinations of incompatible materials easily lead to pollution. For example, liquid leakage from vehicles onto sandstone surfaces. Porous mortar laid on bridge decks or stairs can cause coal-related pollution. Incorrectly cleaned joints are also a significant cause.

Proper handling involves meticulous attention to transportation, storage, and construction stages. Thin paneling is not only brittle and prone to damage but also easily stains. Be vigilant about persistent stains such as mortar, paint, protective coating spots, scaffold rust, and mechanical lubricant.

During storage and up to the completion of construction, cover the stone as much as possible with plastic sheeting or protective dust cloths.

Thoroughly understand that the entire service process may result in internal and external contamination due to pollution or human contact. Isolate from the source of contamination as much as possible and regularly clean away dirt. In contaminated areas, use appropriate coatings and construction cleaning agents to remove stains. When cleaning stone, it should be done moderately to prevent harm to the environment and workers, as well as to avoid damage to the stone itself. Considering cost factors, cleaning should be economical and effective. Therefore, it is essential to be familiar with the following:

Convenient Methods and Locations for Cleaning

2. Sensitivity to the degree of wear and tear on stone during the cleaning process.

3. Surface contamination level

4. Is cleaning necessary?