Plastering & Rendering

Why is my newly plastered wall still wet after one week?

Anonymous user 03/03/2024 - 3.44 PM

Recently had my living room skimmed; one part of the wall had been damp so had a specialist in who told me it was not rising damp, but salt in the walls that was absorbing moisture from the next door bathroom (bathroom previously had not been tiled for years). Was advised to hack that part of the wall off before plastering. This was done, then filled with new cement/sand, covered with some waterproof mesh, then skimmed over with the rest of the room. The problem now is that whilst the rest of the plaster has dried, the part of the wall that was previously hacked/cemented, is still damp and wet (the exact same area that had been hacked off and recemented). Does anyone know why this could be?