Walls in old buildings

Such walls are very insidious because they can cause rust which will lead to yellow patches. To avoid the appearance of rust patches it is important to clean and prepare the surface carefully before proceeding with the Silk Plaster application. Apply  plaster/stucco to surface and prime it in 2-3 layers with the original Silk Plaster primer, drying time is 24 hours per layer.  In the absence of the original Silk Plaster primer we recommend coating it first with any white oil-based paint or very strong primer 2 times for exterior usage. Then coat it with usual white mat paint for good adhesion. It is possible to use other products available on the market, however,  before applying liquid wallpaper on top of this product we recommend testing it first on the small surface area. Finally you can apply Silk Plaster.