Office sanding in an office builduing in central London SE1, 44 m2 heavily worn birch wood floor. We started sanding with 60 grit sandpaper, then 80, and finished with a buffing machine with 100 grit sandpaper. We also sanded the edges with an edger grain size 80. We first applied a clear lacquer satin.
After drying for about an hour, we went through a buffing machine with 150 grit sandpaper. Then we applied two coats clear lacquer satin. The job took 7 hours.
