During the installation of sesame gray stone or other stone varieties using either wet or dry construction methods, if iron fittings are rusty, it is natural for the rust to spread to the surface of the sesame gray stone, ultimately resulting in the rust yellowing issue that everyone is familiar with. Understanding the factors that lead to rust yellowing is crucial, as sesame gray stone inherently contains unstable iron minerals or foreign rust that penetrates into the stone gray surface due to moisture. Therefore, to prevent rust yellowing, it is necessary to reduce the moisture content in sesame gray stone and other stone varieties. The preventive measures are as follows:

One: Prior to installation, sesame grey stone requires protective measures to prevent moisture from seeping into the slabs, thereby avoiding oxidation reactions between iron minerals, moisture, and oxygen in the air, which can cause rust stains.

Secondly, when cleaning sesame grey stone, operators must not use stone cleaning agents containing acidity. Acidic substances naturally dissolve the iron minerals within the sesame grey stone, which then further react with water and oxygen in the air, causing rust and yellowing.

When installing芝麻灰stone with a dry installation method, it is best to use stainless steel hangers to avoid the hangers from rusting and spreading to the stone surface, forming rust stains.

When beginning the second renovation of sesame gray stone surfaces, avoid using materials and accessories that are highly prone to staining the stone, such as unrust-proofed lighting fixtures and fastening devices. After renovation, pay attention to applying a stone protective agent once to the cut and worn areas, to prevent rust from spreading to the surface and causing contamination.