Flash Harry Damp Doctor Injector is a DIY damp-proofing injection fluid designed to treat rising damp at its source. Using a gravity-fed injection system, it forms a chemical damp-proof barrier inside the wall structure, helping prevent moisture from travelling upward through foundations and masonry.
Its water-based, low-odour formulation penetrates deeply into walls to create long-lasting protection against rising damp, while preparing surfaces for replastering and decorative coatings.
