CROMAR Alphachem Protection Of Block & Paving Sealer Patio And Patio 25 Litre\n\nDESCRIPTION:\nBlock & Paving Sealer is an effective protection of block pavers and masonry.\n\nUse:\nBlock & Paving Sealer provides a durable penetrative sealer to a wide variety of materials including concrete, screeds, brickwork, masonry and fibrous sheet materials. The use of Block & Paving Sealer helps provide protection to both new and existing concrete and masonry against water and air borne pollutants.\n\nAdvantages:\n\u00B7         Can be applied to green concrete (after 4 \u2013 6 weeks)\n\u00B7         Non-yellowing\n\u00B7         Dual Sealer and Curing Action\n\u00B7         High Penetration\n\u00B7         Suitable to receive subsequent treatments\n\u00B7    &.