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滲入石材內部后發生化學反應，生成與石材結構相同的銹黃色無機礦物質顯色離子，從而達到加深和改變石材顏色的目的，該反應過程在自然狀態下是不可逆過程，因此不會有褪色的危險，顏色自然逼真，對石材的物理機械性能沒有影響，經科特防護劑再次固定處理后，顏色可達到與石材的天然顏色相同的色牢度效果。

Into the stone after internal chemical reaction to produce the same stone structure yellow rust color inorganic mineral ion, so as to deepen and change the color of the stone objects, and the reaction process in the natural state is an irreversible process, due to this is not in danger of fading, natural and realistic colors, no effect on the physical and mechanical properties of the stone, the anti-Cote Protective agent again after fixing treatment, the color can be achieved with natural stone color fastness same effect.