Is it better to scrape the walls with porcelain or putty powder? What are the advantages and disadvantages of each?

Of course it is better to scrape putty. Putty powder will not show the phenomenon of pulverization after moisture, water-resistant putty strength is higher than the general interior wall putty. Has a strong water resistance, its disadvantage is that the construction and sanding is more laborious. The advantage of scraping porcelain powder is that the cost is relatively low, the construction speed is relatively fast, very easy to repair. Its disadvantage is that the surface will be easy to produce small cracks after a period of time.