In addition, polyurethane varnishes practically do not change shades of artistic parquet, as they are absolutely colorless. But the use of PF-231 varnish for art parquet is inappropriate. This varnish will greatly distort the drawing of an art parquet due to its inevitable darkening. And the more layers, the stronger the drawing will darken and distort. And art parquet requires special protection, so such varnish should be applied at least three layers.
