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GECO ANTISALT is a colourless, solvent-based salt efflorescence inhibitor for masonry affected by rising damp. It penetrates a few millimetres into the wall and stops the salts that migrate towards the surface and crystallise, which would otherwise ruin plasters and paints.
It creates a neutral zone without changing the breathability or the mechanical strength of the substrate, and its slightly acidic composition eliminates the bacterial flora that attacks damp walls, preventing mould. It is the first step of the GECO dehumidifying system, before the scratch coat and the plaster.