Osmo Natural Oil Woodstain, microporous and durable protection for exterior woods. 2 in 1 (foundation and top coat in one), the stain protects against mould, algae and fungal attacks and can be applied and finished in just one day with 2 coats. Samples also available.

Ideal for all wood in outdoor areas: doors, windows and window shutters (dimensionally stable elements), carports, timber cladding, balconies, timber decking, fences, pergolas, garden furniture and summer houses (dimensionally unstable elements).

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• Features & Benefits
• Finishes & Examples
• Suitable & Recommended Wood Species
• Notes & Tips

Features & Benefits

• Base and top coat in one finish
• Fast drying
• Natural wood grain remains visible
• Extremely weather and UV resistant
• Very water and dirt resistant
• Resistant against algae, mould, mildew and fungal attack
• Reduces wood swelling and shrinkage
• Microporous, breathable finish which does not crack, peel or flake
• No sanding necessary for future applications
• Ideal for all wood in outdoor areas:
• Doors
• Windows and window shutters (dimensionally stable elements)
• Carports
• Timber cladding
• Balconies
• Timber decking
• Fences
• Pergolas
• Garden furniture
• Summer houses (dimensionally unstable elements)

Finishes & Examples

Suitable & Recommended Wood Species

Recommended:

For all other wood types not specified, always trial apply.

• Oak
• Beech
• Ash
• Alder
• Birch
• Thermowood and Thermally Modified Timber (TMT): prone to grey very fast and therefore application is recommended within the first two weeks after processing. Decking-Oil 010 Thermowood is optically suitable.

Also Recommended:

For the following wood types, WR Base Coat is recommended before use.

• Accoya
• Kebony
• Pine
• Douglas Fir
• Spruce

Recommended After Weathering Period:

For the following wood types, a weathering period is recommended. New or sanded wood requires at least 12 weeks (approximate) exposure to the exterior elements before application.

After the weathering period, it’s generally recommended to de-grey the surface with Osmo Wood Reviver Power-Gel and clean the surface from the extractive content before application, always trial apply!

For all other ingredient-rich hardwood species not mentioned may require a varied period of exposure. Please contact us for further information.

• Cedar
• Iroko
• Mahogany
• Teak
• Walnut
• Ipe
• Merbau
• Wenge
• Rosewood
• Sycamore
• Pressure-Impregnated Pine
• Sapele: 3-4 weeks exposure
• Larch: 2 weeks exposure. Application of WR Base Coat is recommended before use

Not Recommended:

The wood species below are not recommended. Please use Osmo Wood Wax Finish Extra Thin instead.

• 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.

Notes & Tips

• For new resinous wood species, please allow approx. three months exposure to the outside elements prior to application
• The transparent colour tone of the finish will be influenced by the wood’s natural colour, and testing first is always recommended
• Over application can increase the drying times
• Use biocides safely. Always read the label and product information before use
• Recommended application amount is approx. 35 ml/m²
• Drying time of 4-6 hrs after the first coat, but is 12 hours after both coats have been applied
• If the subsurface does not absorb the wood finish uniformly, the colouration will be uneven. For an improved, consistent and matted surface, we recommend retreating the surface with [701 Clear]. Thereby glossy spots are matted and an even appearance is created
• Grey wood looks classically beautiful, to allow the natural greying process to occur, apply [701 Clear]
• For more grey colour tones for an aged and weathered effect, see Osmo Natural Oil Woodstain Effect
• Multi-purpose cleaners such as washing up liquids and detergents are highly detrimental to the finished surface and is not recommended to be used as discolouration or staining may be possible
• Other household cleaning products such as vanish, bleach, baking soda etc. are likely to cause severe discolouration or staining
• Many wood species contain water-soluble coloured extractives which may leach out naturally when weathered