Osmo Natural Oil Woodstain Effect 5ml Sachet



Osmo Natural Oil Woodstain Effect is a microporous and breathable Silver metallic finish for exterior wood. Water repellent, weather and UV resistant and protects against mould, algae and fungal attack.

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Please use the drop down menus to view all the colour & size options available
*All Colours are a representation and may differ from the actual colour once applied.


£1.37 Inc VAT

£1.14 Excl VAT

This works out at: £274.00 per litre
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Not sure how much you need? Try out our Coverage Calculator

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1 coat(s):

2 coat(s):

We recommend 2 coats for new applications. Please note coverage figures are only a guide as coverage can vary depending on the wood and its condition. We strongly recommend using 4005 as a base coat to improve coverage.






Osmo Natural Oil Woodstain Effects are a range of woodstains in three attractive silver-metallic tones, designed to complememnt the full range of Osmo Natural Oil Woodstains, satin-matt oil-based protective finish suitable for exterior wood. Microporous, breathable finish allowing the wood to breath and reduces the risk of swelling and shrinkage. Water-repellent, extremely weather and UV resistant. The finish contains active ingredients which protect it from mould, algae and fungal attack. The finish is proven over decades in all kinds of climatic conditions, and does not crack, flake, peel or blister.

Key benefits include:

  • Extremely resistant to the affects of weathering and UV
  • Protects against mold, algae and fungal attack
  • Easy to maintain with no sanding back required for maintenance coats
  • The natural wood grain remains visible
  • A microporous and breathable finish which does not crack, flake or peel
  • Helps to reduce wood swelling and shrinkage
  • Very water repellent and dirt resistant


1 litre will cover approx 26m2 on smooth timber and approx 12m2 on rough sawn wood. The coverage on absorbant timbers can be significantly improved by coating with 4001 WR Base Coat first. Please note that grooved decking will require approximately 30% more than smooth decking.

Available Finishes:

1140 - Agate Silver
1142 - Graphite Silver
1143 - Onyx Silver

Suitable Applications:

All exterior woods (dimensionally stable and non dimensionally stable): doors, windows and windowsill, carports, timber cladding, balcony, wooden decking, screens & fences, pergolas, garden houses and furniture. Please note that with decking or areas subject to high wear only a single coat should be applied and then the product must be overcoated with Osmo anti slip decking oil 430.

On vertical surfaces the life of the product can be greatly extended by applying a top coat of Osmo UV Protection Oil 420 Extra or Osmo 410 UV Protection Oil when the woodstain is completely dry.

Technical Information:
Application temperature: 5°C - 35°C
Cleaning of Tools: Osmo Brush Cleaner
Drying Time: Approximately 12 hours (23°C & 50% relative humidity)
Drying time between coats: 4 - 6 hours 
Maximum moisture content of wood: 20%
Odour: Faint/Mild when wet

Please note:
Osmo Natural Oil Woodstain Effect contains biocides and is therefore only suitable for exterior use.
For maximum protection two coats should always be applied
To extend the life of the finish on vertical surfaces Osmo recommend applying a final top coat of Osmo UV Protection Oil Extra 420 or Osmo 410 UV Protection Oil (without biocide).
Many wood species contain water soluble tannins which may leach out naturally when weathered

Please see the attached product data sheet and MSDS for further information, a detailed product information sheet will be sent out with all orders.

*Please note that the colour shades displayed are a true likeness of the original however different output methods (screens & printers) will cause variation in colour. In addition the colour will vary with the wood depending on age, pre-treatment etc and therefore it is always advisable to test on a small inconspicuous area first.

Area of Use - Exterior only.

Suitable for Doors - Yes

Suitable for Doors, Windows & Joinery - Yes

Suitable for Cladding, Fencing & Garden Buildings - Yes

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