High humidity, water

Before plastering the walls, it is necessary to primed them. The primer will improve adhesion, that is, the adhesion of the plaster with the surface of the wall, which will not allow it to fall off in the near future, will allow the coating to be more dense and homogeneous. Do not regret the primers — its overspending will pay off a noticeably lower plaster consumption and significantly delayed by the next serious repair. The primer is chosen depending on what surface it has to be applied to: brick, concrete, drywall or some other. If on the surface an oil paint that I would not want to remove, then it will be necessary to make notes for better adhesion. For bathrooms and other places with high humidity, water -repellent and bactericidal primers are perfect that will not be used to develop a fungus or bacteria.