FEB BLOCK & PAVING SEALER 25LTR - FBBLOCK25 FEB BLOCK AND PAVING SEALER is a Block Paving Seal & Joint Sand Stabiliser based on a clear solvent based acrylic coating designed to bind jointing sand and form a durable seal over block paving and other mineral pavers/flags. FEB BLOCK AND PAVING SEALER penetrates deeply into pavers and jointing sand and then cures by solvent evaporation to give a long lasting seal which is resistant to sunlight, water, oil and Petrol. FEB BLOCK AND PAVING SEALER contains a fungicide to resist the growth of fungus, mould and weeds. To seal and protect block paving. Deeply penetrating – deepens/enhances natural colour of block paving. Colourless, long lasting. Protects surface from discolouration due to pollution. Helps to reduce efflorescence. Water permeable coating - allows paving to “breathe” and prevents ponding of rainwater. Instructions for use