A pieces of the high stone, due to some improper storage or operating process, resulting in stone value of rapid decline, to solve the stone of the macula must first understand the reasons for macular, stone yellow main reason is at 8:
1 improper use of chemicals to cause pollution of the stone;
2 high alkali cement mortar and stone within;
3 stone itself cracks or loose material, high clay content;
4 stone containing sensitive elements with high content of chemical reaction;
5 in wax stone surface or other type sealing treatment, effect of permeability;
6 air circulation, ventilation effect of stone;
7 not do waterproof processing, stone water is too high;
8 stone improper protection, made of wood, straw, carton pollution.
Treatment of macular:
1. to completely distinguish macular species, clarify its causes. For the macular caused by external pollution, it is best to be able to fully understand the process of pollution.
2. to differentiate between macular and rust. Please refer to the processing method of rust rust part.
3. To use marble glue or other adhesive improperly formed macular, first with marble blade to remove the stone surface of the residual glial and then in addition to glue cleaning of the contaminated the stone surface part. According to the degree of pollution, the grinding and polishing method is adopted to deal with the pollution.
4. Of formed from the interior of the stone elements react with cement macular and by a rope, paperboard, wood pollution and the formation of macular, should first with macular scavengers, then stone conservation protection agents treatment to prevent macular happen again or continue to deteriorate.
Here macular recommend some SICONG organic cleaning agents for the treatment of macular effect is significant.
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