I will be applying a waterproof shower kit (BAL) to newly skimmed walls. Bal states that plaster should be left 4 weeks before application. The walls have only been skimmed and to the naked eye have dried out to normal plaster colour in 48 hours.
Do I need to wait the whole 4 weeks before tanking the area as I would if the area was fully plastered
Do I need to wait the whole 4 weeks before tanking the area as I would if the area was fully plastered