Step:

Surface must be free from dust and dirt.

Apply AQUA Wood Filler by squeezing the tube and allowing the filler to flow through the nozzle on the tube.
Products required:

Remove excess filler using the red Spatula. In deep joints the filler will shrink a bit, and the procedure has to be repeated.Note: Leave Wood Filler to dry and remove surplus with the Metal Planer.
Products required: