Many building products including concrete, tiles, cement products and clay bricks contain silica, as does sand, rocks and granite. Silica dust is usually created when these building products are cut, drilled or otherwise worked on to release fine particles. This form of silica ‘dust’ can be considered harmful to the lungs with prolonged use (in large quantities, over many years). I advise you to wear a mask when using silica and to avoid pouring large amounts in one go.
