Osmo Natural Oil Woodstain

From £27.26 £22.72 per litre

Osmo Natural Oil Woodstain provides semi-transparent, satin matt protective finish for a range of exterior wood applications, such as decking, cladding, doors, windows, garden furniture, summer houses, fences and screens, garden offices and more.

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Osmo Natural Oil Woodstain

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At a Glance

  • Size: 750ml / 2.5 litre.
  • Provides a semi-transparent, satin-matt finish.
  • Breathable solution reduces risk of swelling, will not crack, blister or peel.
  • Active ingredients protect against fungal attack.
  • Repels water, UV resistant and protects against weathering.
  • Available in 4 tones from stock.

Osmo Natural Oil Woodstain provides semi-transparent, satin matt protective finish for a range of exterior wood applications, such as decking, cladding, doors, windows, garden furniture, summer houses, fences and screens, garden offices and more. 

As a microporous, breathable finish, Osmo Natural Oil Woodstain allows the timber to breathe, thus reducing the risk of shrinkage and swelling. This flexible finish also protects against cracking, flaking, peeling or blisters. 

Available in 4 colour stains from stock, Osmo Natural Oil Woodstain offers exceptional enhanced attributes to the timber, such as water repellency, and resistance to weathering, moisture damage and UV rays which can cause timber to grey and blacken over time. Active ingredients within Osmo Natural Woodstain defend the wood from mould, fungal and algae attack. Osmo Natural Oil Woodstain has been known to provide decades of protection in all kinds of climatic conditions. 

As an easy to apply and maintain product, Osmo Natural Oil Woodstain offers a hassle-free solution to wood finishing. 

Silva stocks Osmo Natural Oil Woodstain in 4 colour tones. Further colours are available to order, please contact us for details.


Natural products

Osmo uses food-safe, natural ingredients for the basis of their wood finishes, waxes and pigments, including sunflower, soya, linseed and thistle oil, which is good for customers and wood alike.

Osmo products contain disaromatised white spirit to ensure finishes spread easily, removing the need for so-called "Green solvent" materials which can cause allergies.

Natural beauty of oils and waxes

Wood is a natural material, the cell structure, similar to our skin, can take on and release moisture, it breathes. To ensure that this exchange is not prevented we have created finishes especially suited to the character of the wood.

Osmo natural wood finishes are based on oils and waxes, the oil penetrates into the wood surface, protecting from deep within. The waxes form an elastic, micro-porous surface which protects the wood from external influences. The wood remains naturally beautiful, protected and durable.

Size Colour Price per Tin Equivalent Price per Litre
750ml Larch / Red Cedar / Walnut / White £24.26£29.11 £32.35£38.82
2.5 litre Larch / White £56.80£68.16 £22.72£27.26
2.5 litre Red Cedar / Walnut £73.40£88.08 £29.36£35.23


  • Number of coats recommended: 2.
  • Drying time (to touch): 12 hours.
  • Time to re-coat (between applications): 12 hours.
  • Usage: external timber e.g. cladding, fencing, garden furniture.
  • Recommended application: for best results apply to timber with a sawn textured face or sand surface using an orbital sander and 80 grit sandpaper.

Approximate Coverage

26 square metres per litre with one coat on smooth wood.

12 square metres per litre with one coat on rough sawn wood.

Coverage will vary depending on the type of wood, age and surface structure.

Preparation Prior to Application

Ensure wood is clean, dry and frost-free, with a moisture content of maximum 20%. 
Do not thin or dilute Osmo Natural Oil Woodstain.
Stir well before applying.
It is recommended to coat all sides of the timber prior to installation, though this is not necessary if applying to existing timber.

Application & Maintenance Advice

  • It is recommended to test the finish on a small surface first to gauge surface quality prior to complete application.
  • Apply a thin and even layer with a brush or roller, following the direction of the wood grain.
  • Allow for adequate ventilation while drying (approximately 4-6 hours).
  • Once dry, apply a second coat as abov.e

For maintenance coats, ensure the surface is clean of loose fibres and dry. One coat should be sufficient.

Drying Time

The second coat can normally be applied after approximately 4-6 hours once touch dry, subject to climatic conditions. 

Please consult the packaging and relevant safety data sheets prior to application.

For full protection against timber weathering, cracking, swelling and shrinkage, use with Osmo End Grain Wax to seal the end grain of the wood.

Courier Delivery


Woodcare, fasteners and accessories.


Up to 5 working days.


£7.50 (ex VAT) for mainland UK deliveries.

£18.70 (ex VAT) for Northern Ireland.

Other postcode areas - POA.

Free delivery is offered on orders over £150 + VAT to UK mainland postcodes only.

You can view our detailed delivery charges and services here.