Osmo UV Protection Oil Extra

Price Range:£20.77 - £60.54
Price £20.77
In stock
Next day delivery available

Osmo UV Protection Oil Extra for vertical wood surfaces outside

Osmo UV Protection Oil Extra is a satin, natural oil based and microporous finish which does not crack, flake, peel or blister. It is water/dirt resistant, moisture regulating and reduces wood swelling and shrinkage. The natural oils enhance the natural character and tone of the wood.

This version contains film protection.

Osmo UV Protection Oil Extra is a transparent, satin protective wood finish for exterior wood. Its' microporous surface allows the wood to breathe and reduces swelling and shrinkage. Its water-repellent surface does not crack, peel, flake or blister. As topcoat on already coloured treated wood, Osmo UV Protection Oil extends intervals between renovations significantly.

The Extra version contains film protection. If you require an oil that does not contain film protection, you need Osmo UV Protection Oil.

As self-priming finish, it prevents the greying process on vertical surfaces with a UV protection factor 12 in comparison to untreated wood when two coats are applied. The finish contains active ingredients that prevent mould, algae and fungal attack. Simply apply without sanding. Easy and seamless application. Finish stays workable while coating.

Osmo UV Protection Oil is ideal for all vertical exterior wood surfaces such as doors, windows, window shutters (dimensionally stable elements), carports, timber cladding, balconies, fences, pergolas, and summer houses (dimensionally unstable elements). Also suitable for bamboo poles (e.g. in screens).


  • Available with or without film protection
  • Can be used on top of previously stained wood
  • Extends intervals of renovation significantly
  • Single product application
  • Delays the greying process of wood caused by UV light

Technical Information

Brand Osmo
Coverage 18m² per litre
Application Brush, Roller
Drying Time Touch dry in 10–12 hours @ 23°C
Coats 2 coats recommended
Cleanup With Osmo Brush Cleaner (free of aromatic compounds)
Storage 5 years if can kept dry and firmly shut. Store for 24–36 hours at room temperature before use
VOC 400g/l
Ingredients Based on natural plant oils (sunflower oil, soya oil, thistle oil and linseed oil), siccatives (drying agents) and additives, biocidal active ingredient: Propiconazole. Dearomatized white spirit (benzene-free).
MPN 420


Product Information (618kb PDF)
Safety Data Sheet (254kb PDF)


Wood surface must be clean, dry and frost-free (moisture content max. 20%).

UV Protection Oil Extra is ready to use, please 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. Do not sand smooth surfaces finer than P120. If possible, please apply base coat to all sides before installation.

Fresh wood containing extractives and especially hard wood needs to weather off (for approximately 6 weeks) after installation. Thereby the wood becomes absorbent and the wood finish adheres optimally.
A base coat with a coloured finish is recommended, e.g. Osmo One Coat Only, Natural Oil Woodstain or Country Colour.

For renovations, clean old microporous wood finishes thoroughly. Clean and refresh already greyed or weathered wood at the same time with Osmo Wood Reviver Power-Gel.

The finished surface is, among other things, influenced by the wood‘s natural characteristics. Therefore, a trial application is always required, especially for unfamiliar surfaces.

If additional protection against blue stain, rot and insects is desired, pre-treat the wood if possible on all sides with Osmo WR Base Coat*.

*Use biocides safely. Always read label and productinformation before use.


Apply thinly along the wood grain with Osmo Natural Bristle Brush or Osmo Microfibre Roller and spread well.

Allow to dry for approx. 12 hours with good ventilation.

Then apply the second coat.


Oils enhance the natural tone of wood (permanent wet effect).

Depending on the degree of weathering, apply one coat of Osmo UV Protection Oil Extra to the cleaned and intact finish after approx. 3–4 years.

For areas, which are highly exposed to weather, such as weatherboard, post caps or windowsills, please expect substantially shorter intervals between renovations. Vertical elements mounted onto horizontal wood should have at least a 15-degree angle. Sharp edges must be rounded (radius > 2 mm).

If the greying process has already begun, refresh the surface with Osmo Wood Reviver Power Gel and reapply 2 coats of Osmo UV Protection Oil Extra.

To achieve the UV protection factor 12, it is necessary to apply 2 coats of UV Protection Oil Extra. With only one coat on untreated wood, the life of the finish is significantly shorter.

Due to the high oil content, clear UV Protection Oil Extra has a light yellowing effect when used as a finish on white substrates. Therefore as a top coat on white finished areas, we recommend Natural Oil Woodstain 900 White.

Osmo UV Protection Oil Extra contains biocides and therefore is only to be used on exterior areas. The added active ingredients delay or minimize the risk of algae and fungal attack. For effective protection, two coats are to be carried out. In accordance with the latest technical research, a permanent protection against algae and fungal attack cannot be provided.

Product Numbers

Manufacturer's Part Numbers (MPN):
420C, 420D

4006850477807, 4006850477814