What should I pay attention to before and after scraping putty?

Generally, it is not necessary to brush the interface agent before scraping putty, because the interface agent mainly solidifies the surface dust and bonds different materials together. Therefore, in the process of wall treatment, there is no need to brush the interface agent after scraping the putty for the first time. But after the putty is scraped, the interface agent should be used first, and then decorative materials such as paint, wallpaper and diatom mud should be added.

Function of interfacial agent

Interfacial agent is mainly used to treat concrete, lime-sand brick and other surfaces, to solve the problem that the surface is not easy to bond and prevent the plastering layer from hollowing and cracking.

Matters needing attention in brushing interface agent

Whether to scrape putty after brushing the interface agent depends on the quality of the interface agent and the weather conditions. Generally, the interface agent is mixed with 15% to 20% water, and then it can be brushed. After brushing the interface agent, be sure to wait until it is completely dry before scraping putty.

Matters needing attention in scraping putty

Pay attention to scraping putty. The number of times can be determined according to the flatness of the wall. Not the more, the better. The thicker the putty, the easier it is to crack. Usually two or three times, putty must be waterproof.