Randcon Plaster Primer Water Based Nano-Technology is a high quality pigmented, alkali resistant primer, and penetrating sealer for sound cement, cured gypsum plaster, concrete and brick substrates. It has been specially formulated with improved and enhanced benefits for maximum penetration and adhesion. Product benefits: - Lead free - Alkali resistance - Excellent adhesion properties - Resistance to efflorescence - Rapid drying - Lower odour - Environmentally friendly - Water based Use interior & exterior New or previously painted, masonry plaster, gypsum, concrete, fibre cement and brick surfaces after suitable preparation. Spreading rate: This product will cover approximately 5 to 7 m² / litre per coat depending on the type of substrate and surface porosity. Drying properties: Surface touch dry: 2 hours. Recoating time: 12 hours. Cleaning: Clean all tools (brushes & rollers) while wet with water after use.