Product catalogue

Pre-treatment of surfaces using Polysil-TG500, available from Delta Membrane Systems, helps prevent the leaching of free lime and mineral salts when water flows over concrete, and the resultant crystallisation. Polysil-TG500 is an aqueous formulation of silicic acid compounds which chemically react with the substrate to produce a silicification effect. Silica gel is formed within the capillaries reducing pore sizes, consolidating and strengthening the treated material. Supplied in 10kg tins, it is applied undiluted by low pressure spray to concrete or masonry surfaces at a rate of about 150g/m2 to achieve a good saturation coat.