• Categories:Company news
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• Time of issue:2021-09-14 15:29

(Summary description)The disease of stone can be basically divided into two categories: one is that the micropores of the stone are occupied by foreign objects, and the microstructure of the stone itself has not been significantly damaged, for example, most of the rusty yellow spots, organic stains, salt spots and white flowers, water Stains and water spots, oil spots and oil stains and so on. For this type of disease, professional cleaning is the preferred method.

The other type is that the microstructure of the stone has been damaged to a certain extent, such as the surface loss, chalking, peeling, holes, cracks, etc. For the second type of disease, refurbishment methods are generally used.

Cleaning

Professional cleaning is a method for cleaning different causes and objects of stone diseases. The main focus here is on the cleaning of the stains of the decorative stone that have penetrated into the micropores of the stone, which is called the "deep cleaning" of the stone. Generally speaking, the deep cleaning of the stone should include at least the following three steps:

(1) The cleaning agent enters the micropores of the stone through the infiltration process;

(2) The cleaning agent has a physical or chemical effect with dirt molecules in the micro-L gap of the stone;

(3) Remove the residue after cleaning by suction or dilution. The first and third items here are the basic operation steps necessary to complete the deep cleaning, and the second step, that is, the cleaning agent that can interact with dirt molecules needs to be based on the nature of the dirt, the material of the stone and the convenience of the treatment process. Carefully design and experiment. Here the chemical method has a unique effect.

Notable issues in deep cleaning of stone include:

(1) should be tested first. The "sickness" of stone is very different, for example, there can be many kinds of deliquescent salts that form water spots. Therefore, without knowing the specific cause of the smudge, we recommend doing a small experiment first;

(2) Choose the cleaning agent carefully. Inferior cleaning agents are often strong acids, which are likely to cause more serious stone diseases, such as surface loss and chalking, water spots and salt spots, loose corrosion and yellowing.

Therefore, it is recommended that users first choose high-quality products from reliable manufacturers; secondly, protect the parts that are not ready to be cleaned before cleaning, and remove residual chemicals after cleaning; in addition, the cleaning of stone cultural relics should ask relevant experts Argument.

Refurbished

Renovation is a treatment method for the surface or surface microstructure damage caused by stone disease. Polishing, sandblasting and coating are the most basic refurbishment operations.

The easiest way to refurbish is to polish it again or apply a layer of masking material.

Grinding and polishing can restore the original natural appearance of the smooth surface of the stone that has lost its gloss on the surface, pulverized and peeled off the surface, and dissolved on the surface. The combination of some new abrasive tools, abrasives and chemical additives can make the refurbished stone surface reach a mirror gloss of more than 90 degrees.