Surface preparation
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Wood surface must be clean, dry and frost-free (moisture content max. 18%).
Osmo TopOil is ready to use. Do not thin. Stir well before use.
Clean old microporous stains thoroughly. Old paints and lacquers must be completely removed. As a general rule, wear a dust mask during sanding works.
Fill small cracks, larger joints or holes in wood (with Osmo Wood Filler).
Sand wood surfaces carefully. Begin with coarse sandpaper then progress to finer grades– final sanding work for furniture P150-240 (depending on wood species ). For kitchen work tops using absorbent hardwoods like Oak or Beech, final sanding grade P120. For very absorbent woods like Pine, sand to a maximum of P150.
For dark and extractive-rich woods (e.g. Iroko, Teak, Mahogany, Sapele, Wenge, Merbau, Jatoba, Cedar etc.), we recommend using Osmo Wood Wax Finish Clear Extra Thin. A trial application is recommended.
Before oiling the surface, remove sanding dust with a soft brush or vacuum cleaner.
The finished surface is influenced by several factors, including the condition of the wood. Therefore, a trial application is always required, especially for unfamiliar surfaces.
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Method of application
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Apply the first coat thinly along the wood grain with an Osmo Microfibre Roller, Flat Brush or Oil Finish Applicator Fleece.
Allow to dry for approx. 8-10 hours. Ventilate well while drying.
Apply the second coat with an Osmo Oil Finish Applicator Fleece or a lint-free cloth. Avoid covering during drying and curing. After 2-3 weeks, the surface is fully cured.
For renovations, one coat applied to the clean and dry surface with an Oil Finish Applicator Fleece or lint-free cloth is usually sufficient.
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Note
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Transparent colours are influenced by the natural colour of the wood and therefore they may deviate from the sample colours. Light transparent colour tones offer only limited UV protection; therefore they are not recommended for surfaces exposed to strong sunlight. Dried surface is at first satin-glossy and then satin. To extend the life of the coating, it is recommended to apply one final top coat of Osmo UV Protection Oil Extra 420 Clear after thoroughly drying (not recommended for White 900). Many wood species contain water-soluble coloured extractives which may leach out naturally when weathered. All colour tones can be mixed with each other.
Starting from 2.5 litres per colour tone, available in 186 RAL Classic and 1950 NCS colour tones.
Transparent finishes allow the substrate to shine through. Depending on the wood species, the appearance of the colour tone may deviate from the original RAL/NCS colour tone.
Osmo Natural Oil Woodstain is furnished with biocides and therefore it is only to be used in outdoor areas.
The added active ingredients delay or minimise the risk of algae and fungal attack. For effective protection, two coats are to be carried out. In accordance with the latest technical research, permanent protection against algae and fungal attack cannot be provided.
Using power washers will severely decrease the coverage of the finish and general or multi-purpose cleaners will increase the frequency of maintenance and recoating.
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