sample of wood was then stained with a dark stain the location of the drilled hole 1 is clearly visible as the degree of acceptance of the stain by the wood and by the plastic wood were very different in contrast when a similar hole in another sample of the same piece of wood was filled with a filler of the invention and stained in the same manner the location of the hole is very difficult to see fig2 a shows a sample of oak in which a hole was drilled and subsequently filled with a plastic wood the sample of wood was then stained with a light stain the location of the drilled hole is not readily visible but the area around where the hole was filled 3 showed poor acceptance of the stain in contrast to areas 4 removed therefrom which show good acceptance of the stain the area 3 that did not accept the stain was the area that came into contact with the plastic wood during application of the plastic wood into the hole and smoothing the surface thereof in contrast fig2 b shows a sample of the same wood viz oak in which a hole was drilled and subsequently filled with a filler of the invention the sample of wood was then stained with the light stain in this instance the location of the drilled hole is visible but is to be understood that the colour of the filler after staining can be more closely matched to the.