7. what to do with the scraper sticky board? General mortar, in order to enhance the adhesion with the wall, has a relatively high viscosity. This will make the later construction more difficult, the scraper rod is not smooth, and it is easy to stick to the board. At this time, the problem cannot be
4. Is it necessary to use interface agent before spraying? Interface agents are usually used on concrete surfaces. Because the concrete surface is too smooth. By using an interface agent, the surface of the base layer can be roughened. It can increase the adhesion of mortar to the base layer. Avoid plaster layers with hollow
1. What are the advantages and disadvantages of cement and gypsum as machine-sprayed materials? Both cement and gypsum can be used as machine spraying materials. From the point of view of performance, the strength of gypsum matches the general base wall, and there will be no problems of cracking and hollowing of cement mortar. From
