I am looking for an undercoat for an exterior wall of old breeze blocks (a garden wall) that I want to paint with exterior paint to brighten up a grey wall. I want something to seal it from damp coming through as it is a soil retaining wall
Thank you for the enquiry, unfortunately we do not have a paint suitable for this application, but you could consider the Sika 1 Waterproofing System to tank the wall first.