Osmo UV-Protection-Oil Extra
All exterior woods grey into a patina colour over time, but Osmo UV-Protection Oil Extra has been developed to slow the greying process by (UV factor) 12 times in comparison to untreated wood. Wood colour will fade over time. To maintain some colour for longer, consider transparent coloured options from Osmo like UV Protection Oil Tints or Natural Oil Wood Stain.
Ideal for windows, doors, cladding, fencing and other vertically structured joinery (not recommended on flat surfaces such as decking).
Natural oil-based and microporous finish does not crack, flake, peel or blister. Water and dirt resistant, moisture regulating and reduces wood swelling and shrinkage.
- Highly water and dirt resistant
- Contains active ingredients to protect the coating against mould, algae and fungal attack
- Clear and transparent colours available
- Microporous, penetrating finish which does not crack, peel or flake
- No sanding necessary when topping up coating
- Delays natural greying by 12 times in comparison to untreated wood
- Approx. coverage: 18m²/L with one coat
- No. of coats: 2
- Ideal application temperature: +10°C to 35°C
- Drying time: 12hrs.
- Sizes: 0.125L, 0.750L, 2.5L
Recommended
For all other wood types not mentioned, always trial apply first.
Oak
Beech
Ash
Alder
Birch
Thermowood and Thermally Modified Timber (TMT): prone to grey very fast and therefore application of a tint/colour is recommended within the first two weeks after processing. Always trial apply the tint/colour to reach a harmonious colour tone with Thermowood / TMT.
Also Recommended
For the following wood types, WR Base Coat is recommended before use.
Accoya®
Kebony®
Pine
Spruce
Douglas Fir
Recommended After Weathering Period
For the following ingredient rich wood species, a weathering period is recommended to improve absorbency. New or freshly sanded ingredient rich wood requires at least 12 weeks exposure to the exterior elements ( unless otherwise stated below) before application.
After the weathering period, it’s generally recommended to de-grey the bare surface with Osmo Wood Reviver Power-Gel , damp rinse, then clean the surface from the extractive content before application, always trial apply!
For all other ingredient-rich hardwood species not mentioned, please contact us for further information.
Cedar
Iroko
Mahogany
Teak
Walnut
Ipe
Merbau
Wenge
Rosewood
Sycamore
Pressure-Impregnated Pine
Sapele: Approx. 3-4 weeks exposure
Larch: Approx. 2-6 weeks exposure. Application of WR Base Coat is recommended before use.
Pressure-Impregnated Wood: Approx. 12 weeks exposure to heavy rain (winter periods) or approx. 6 months exposure to light rain (summer periods) to wash out the salts used for impregnation.
Important: please check and ensure moisture content is below 20% prior to application.
Not Recommended
Green Oak: moisture content is often above the maximum 20% recommended.
Idigbo: contains yellow dyes which leaches when the wood becomes wet and stains when in contact within iron.
Other: woods treated with a varnish, lacquer or other surface coatings must be completely sanded before use.
