"Tthe wall requires a clean with Centrecoat GS36 Fungicidal Wash to kill any moss or other organic growth, which is simply diluted with water then applied by a backpack sprayer. Once the wall is dry and free of contamination, ideally left over night, a coat of Rust-Oleum Pegafix Universal Primer could be applied by brush or roller to provide outstanding adhesion for the waterproofing paint to the substrate. This should be followed by 2 coats of Rust-Oleum Murfill Waterproofing, an exceptionally outstanding coating formulated to offer many years of protection against some of the harshest weather thrown at it. Murfill Waterproofing is in fact specified by Trinity House. Trinity House are the body who maintain Lighthouses around the coats of Britain. This proves that this masonry paint really will keep the water out!
Answered on 2nd Aug 2019 - Member since Jul 2019 - report
Alternatively you can use Leyland ‘’ Truguard ‘ pliolite resin paint that contains alkali inhibitors to counteract the effects of the seasonal seaside conditions. :-)"