Sharp edges must be rounded (radius > 2 mm). Vertical elements mounted onto horizontal wood should have at least a 15 degree angle. For areas exposed to strong weathering, such as flat horizontals, weatherboard, post caps or window sills, please expect significantly shorter renovation intervals. Osmo UV-Protection-Oil is best suited to vertical structures whereby there is plenty of water run-off. ![]() Oils enhance and intensify the natural tone of wood (permanent wet effect).ĭepending on the degree of weathering, apply one coat of Osmo UV-Protection-Oil Extra to the cleaned and intact finish after approx. If desired, pre-treat these soft woods if possible on all sides with Osmo WR Base Coat. Soft wood species like Pine or Spruce are more prone to blue stain, rot and insects. Therefore, a trial application is always required, especially for unfamiliar surfaces. The finished surface is influenced by several factors, including the condition of the wood. Weather ingredient rich wood after sanding. To maintain absorbency, avoid sanding surfaces finer than a P120 grit. As a general rule, wear a dust mask during sanding works. Old paints and lacquers must be completely removed. ![]() De-grey any weathered bare wood with Osmo Wood Reviver Power-Gel before applying an Osmo exterior product. Coloured base coats can improve UV protection.įor renovations, clean old microporous wood finishes thoroughly. Weathering is also required if ingredient rich wood has been freshly sanded or renovated.Ī coloured base coat is recommended, e.g. Weathering helps ingredient rich wood become more absorbent and the wood finish adheres optimally. Please refer to website ‘Suitability’ section for more details. If possible, and if the wood is an absorbent species, please apply the first coat to all sides before installation.įresh wood containing natural wood ingredients /extractives (eg: Cedar, Larch, Teak, Mahogany or Iroko) are often less absorbent and need to weather off first before applying the product. Stir well using a flat stirring stick or spatula before use. Osmo UV-Protection-Oil Exra is ready to use. ![]() Sanding to finer grades will reduce required absorbency. Ideally, surfaces are sanded no finer than a P120 grit grade of sand paper. Wood surface must be clean, dry and frost-free (moisture content max.
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