February 13, 2024
To do this, the glue residue that had filled the joint was first removed, filled with fine bird sand (brushed in with a brush) and fixed with diluted PVA glue. When this layer had dried, the entire runway was coated with diluted PVA glue and sprinkled with bird sand. After this layer had also dried, the excess sand could be removed with the help of an old stiff brush and a small spatula, so that it can only be found in the areas where it naturally accumulates (sunken pieces of the tiles).