界面剂什么时候刷？
When is the interfacial agent applied?
在刮腻子(大白)之前，一般在批荡层(水泥沙找平层)上涂抹，主要作用是加强两层材料之间的结合度，让腻子更好地结合在墙面，降低空鼓、脱层等质量问题的概率。
Before puttying (big white), it is generally applied on the plastering layer (cement sand leveling layer). The main function is to strengthen the combination between the two layers of materials, make the puttying better combine on the wall, reduce the probability of hollowing, delamination and other quality problems.
特别注意，有些装修公司进场就满刷界面剂，然后进行开始改水电开槽等工序，这样是不合理的，墙固最主要的作用是防止起粉起沙，刷完界面剂后应该尽快刷腻子，避免有其他装修粉尘二次污染其表面。
Special attention: some decoration companies will brush the interface agent fully when they enter the site, and then start to change the water and electricity slotting and other processes, which is unreasonable. The main role of wall fixation is to prevent dust and sand. After brushing the interface agent, putty should be applied as soon as possible to avoid other decoration dust secondary pollution on its surface.