于色差处理办法的判别，用一个实验办法：将具有色差的两块样品放在清水中，待石材彻底吸水之后调查，假如两块石材在水中的色彩变成了挨近或者相同，此刻只需选用长脸护理剂涂刷色彩较浅的石材即可。

To judge the treatment method of color difference, an experimental method is used: put two samples with color difference in clean water, and investigate after the stone absorbs water completely. If the color of the two stones in the water becomes close or the same, just use the long face care agent to brush the lighter stones at the moment.

很多人反响在用长脸护理剂条色差的时分，会出现色彩发白，乃至出现色彩消失。事实上，长脸护理剂中的有机硅成分，在石材彻底吸收之后，能够确保石材色彩在15年内不会发作太大的改变。

Many people have reported that when using long face care products with color differences, the color may turn white or even disappear. In fact, the organic silicon component in the long face care agent can ensure that the color of the stone does not undergo significant changes within 15 years after it is completely absorbed by the stone.

有机硅成分的长脸护理剂在运用的时分，需求通过多次的测验，涂刷长脸护理剂，并非一蹴即至，而是要根据涂刷完之后，石材的色泽改变而决议是否继续涂刷，在每次涂刷等候长脸护理剂彻底浸透的情况下，2遍以上，就能够坚持长久的运用作用。

When using silicone based long face care agents, it is necessary to pass multiple tests. Applying long face care agents is not achieved overnight, but depends on the color change of the stone after application. After each application, waiting for the long face care agent to fully saturate, it can be used for a long time after more than 2 times.

通常情况下色彩均匀的电梯门套光面石材能够选用上色技能，假如是比较深、比较浅的色彩较纯的石材，等粒结构比较明显的花岗石，也能够选用上色技能。而色彩较为杂乱的毛面石材一定要留神运用上色技能。

Normally, even colored elevator door frames with smooth stone surfaces can use coloring techniques. If it is a relatively dark or light colored stone with pure color, or a granite with a more obvious equigranular structure, coloring techniques can also be used. And for rough stone materials with messy colors, it is important to pay attention to the use of coloring skills.