Wood surface must be clean, dry and frost-free (maximum moisture content 20%). Remove old varnishes. There should be a minimum 15 degree angle on architectural joinery on the horizontal e.g. windowsills. Sharp edges have to be rounded (corner radius > 2 mm).
Osmo UV-Protection-Oil is ready to use. Please do not thin – stir well. Apply with stiff brush (Osmo Natural Bristle Brush) or a microfibre roller thinly and evenly along wood grain. Allow for good ventilation when used interiorly. When used as a complete finish apply second coat after drying. The finish is – among other things – influenced by the woods natural characteristics, therefore a trial application is required before finishing.
approx. 12 hours (dust dry in approx. 4 hours). Allow for good ventilation when used interiorly.
Depending on the level of weathering apply 1 coat of Osmo UV-Protection-Oil after approx. 3 – 4 years on the cleaned and intact finish. In general, one has to take a shorter renovation time into account when surfaces are exposed to extreme weathering and surfaces where water cannot drain (horizontal surfaces). For timber species, which have water-soluble ingredients (e.g. Oak or Idigbo), and in some extreme locations the finish may require re-coating more regularly to maintain the unique protection qualities of this product. If, however, the greying process has already begun revive the surface with the Osmo Wood Reviver and re-apply with 2 coats of the Osmo UV-Protection-Oil.