Thompson's One Coat Damp Seal – White. A damp-stain sealing coating for interior walls and ceilings. The microporous finish allows trapped moisture vapour to escape while covering existing damp marks.
Available in 250ml, 750ml and 2.5L; choose the size from the options above. The manufacturer's published coverage is approximately 5 m² per litre, subject to surface conditions. Once applied according to instructions, it can normally be decorated over after approximately four hours.
Before redecorating, identify and rectify the source of any ongoing damp. Follow the preparation, ventilation and safety instructions on the pack.
