Osmo UV Protection Oil Extra

  4.8/5.0 (530 reviews)
Recommended
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On-screen colours may vary according to different screen calibrations. We therefore always recommend applying a test area.
2 coats = Recommended
Total: enter area

Wood type and application method can vary coverage.

  • A professional grade, oil-based UV resistant wood finish for exterior wood
  • Suitable for all vertical exterior wood surfaces including doors, windows, window shutters
  • Contains UV filters to protect wood against greying and silvering over time
  • Offers superb durability against weathering
  • Reduces swelling and shrinkage of the timber
  • Contains biocides to protect against mould, algae and fungal attack
  • Does not crack, flake, peel or blister
  • Easily maintained and renovated
  • Formulated from a blend of natural vegetable oils and waxes
  • Low V.O.C
Brand Osmo
No. of coats 2
Coverage Up to 20 per litre
Drying time 12 hrs
Size 5ml Sample, 125ml, 750ml, 2.5L
MPN 428S, 420S, 425S, 428A, 420A, 429A, 425A, 428C, 420C, 429C, 425C, 428D, 420D, 429D, 425D
GTIN 4006850770113, 4006850757152, 4006850770106, 4006850746651, 4006850477791, 4006850772056, 4006850684779, 4006850746668, 4006850477807, 4006850772063, 4006850684786, 4006850746675, 4006850477814, 4006850772070, 4006850684793

Osmo UV Protection Oil Extra is ideal for use on all exterior timber including external doors, window frames, windowsills, carports, timber cladding, balcony, screens & fences, pergolas, summer houses and furniture. Osmo do not recommend that this product is used on flat horizontal surfaces where water can collect such as floors, decking and wooden steps.

Please Note: Osmo UV Protection Oil Extra (Natural 429) has been specifically designed to retain the natural, untreated appearance of lighter timbers such as Oak, Pine and Larch. It is not suitable for dark exotic hardwoods as it may leave a 'milky' or 'white film' appearance to the wood.

The clear version of this product (Clear 420 Extra) can be used as a top coat for Osmo exterior coloured finishes such as Osmo One Coat Only HS Plus, Osmo Natural Oil Woodstain and Osmo Country Colour.

Ensure that wood surfaces to be treated with Osmo Protection Oil are clean, dry and frost-free (moisture content max. 20%).

New Wood

  1. Surfaces should be sanded with a 120 grit abrasive and no finer
  2. New wood and especially hardwoods should be allowed to weather for approximately 6 weeks prior to oiling
  3. De-grease surfaces with methylated spirit or Osmo Brush Cleaner and Thinner (8000) before oiling
  4. Treat the wood with an exterior wood preservative for additional protection if desired

Please Note: Allowing the wood to weather, especially dense exotic hardwoods, enables the tight, dense grain of the timber to open up. This makes it easier to apply the oil and allows it to penetrate deeper in to the wood grain.

Old Wood

  1. Clean old microporous finishes (wood oils) thoroughly
  2. Areas affected by mould, algae and moss must be cleaned and treated
  3. Surfaces should be lightly sanded with a 120 grit abrasive and no finer
  4. Old paints, lacquers and varnish like stains must be completely removed
  5. The colour of timber that has turned grey / silver over time can be restored prior to oiling with Osmo Wood Reviver Gel (6609)
  6. Treat the wood with an exterior wood preservative for additional protection if desired

Always do a test area before starting any project to check suitability and compatibility. Follow the manufacturer's instructions on the tin at all times.

  1. Stir thoroughly before and periodically during application
  2. Where possible treat all sides of the timber prior to installation
  3. Apply protection oil thinly along the wood grain with a natural bristle brush
  4. Work the oil into the surface of the wood grain
  5. Wipe of any excess with a clean, lint free cloth
  6. Allow to fully dry
  7. Apply a second coat as above

Renovation

When renovation is required, ensure that surfaces are clean and dry.

  1. Lightly sand or use a stiff brush to remove surface dirt and debris
  2. Apply a thin maintenance coat of Osmo Protection Oil, taking care to work the oil in to the surface of the wood and wiping off any excess
  3. For wood that has become discoloured or is showing signs of mould, algae or moss, refer to the preparation and application sections above

Q. I work for a joinery that makes and fits bespoke hardwood windows, doors and decking. Can Osmo UV Protection Oil be used on dense exotic hardwoods like Teak, Iroko, Ipe, Meranti and Garapa?

A. On the tin it states that Osmo UV Protection Oil Extra is not suitable for use on Iroko, Teak and other exotic hardwood timbers. This said however, we have customers that have used Osmo UV Protection Oil with success on these woods.

Wiping the timber down with methylated spirit prior to applying the oil can aid penetration with these wood types. Other things that can help include allowing the wood to weather for 6 weeks and ensuring that the oil is at a good room temperature which keeps it thinner. Cold temperatures thicken the oil making application more difficult.

Q. Can Osmo UV Protection Oil 420 Clear be used on garden decking?

A. Osmo says that this product is not suitable for use on horizontal surfaces such as decking. This said however, we have customers that have applied one coat of Osmo Decking Oil then applied 2 very thin coats of Osmo 420 clear on top and have been happy with the results.

530 customer reviews
4.8/5.0
 
Easy to use by Richard Green

I used this on a oak framed building where the timber is on show so it needed protection. The old oak was quite weathered and the osmo oil both covered and filled the minor cracks. The new oak covered well and looks lovely. You do get the wet look to the finish and it is important to brush it out well otherwise it takes a long time to dry.

Reviewed 2.5L, Clear - 420 Extra on: 22/02/17
Excellent and very easy to apply by Ben
Reviewed 750ml, Clear - 420 Extra on: 21/02/17
Nice finish by Mr R Kenneth
Reviewed 750ml, Clear - 420 Extra on: 17/02/17
Nice finish by Mr R Kenneth

Will be ordering again next time

Reviewed 2.5L, Clear - 420 Extra on: 17/02/17
Excellent product by Julie Ward
Reviewed 2.5L, Clear - 420 Extra on: 15/02/17
Good product, good price, good service by Julie Ward
Reviewed 2.5L, Clear - 420 Extra on: 14/02/17
Excellent outside protection by Sophie Courtiour

Easy to use

Reviewed 750ml, Clear - 420 Extra on: 06/02/17
A little expensive when buying in bulk but will hopefully give my new build the protection it requires by Stephen Morris

I have just completed installing 170m2 of `Natural wood cladding` on my new build and was recommended to use this product by the timber suppliers to provide the UV protection. The oil was applied in two coats and I am really happy with the lovely finished look it has provided to the property.

Reviewed 2.5L, Clear - 420 Extra on: 04/02/17
Great service by Mr C.B

Fantastic service and fast well packed product

Reviewed 2.5L, Clear - 420 Extra on: 02/02/17
Easy to Apply by Bluehammer Ltd
Reviewed 5ml Sample, Clear - 420 Extra on: 02/02/17
Fantastic by P Kyan

All the products referred to in this survey have performed well. OSMO UV protection oil is a superb product. makes ceder cladding look great. Most of all I have to commend Wood Finishes Direct, their staff are knowledgeable, courteous and professional. Won't hesitate to return. Thank you. Pat K.

Reviewed 2.5L, Clear - 420 Extra on: 01/02/17
Easy to apply and very good protective properties by Jerry Skinner

exellent for exterior woodwork . nice finish and good sunlight protection.

Reviewed 2.5L, Clear - 420 Extra on: 27/01/17
Excellent product by Christiane Luke
Reviewed 2.5L, Clear - 420 Extra on: 25/01/17
Excellent product by Christiane Luke
Reviewed 2.5L, Cedar - 428 Extra on: 25/01/17
Easy to apply by Pamela Lee
Reviewed 125ml, Natural - 429 Extra on: 21/01/17
Good but does change the colour by Dan Jacobs

Good product but does change the colour slightly and takes ages to dry on ruff surfaces

Reviewed 2.5L, Clear - 420 Extra on: 19/01/17
Spot on by Mr Richard Mason
Reviewed 125ml, Clear - 420 Extra on: 12/01/17
Easy to put on - leaves the woods natural look intact ! by Mr Neil Caunce

Goes on real easy - foam roller to apply - went into wood reasonably deep - should give plenty of protection for years to come !

Reviewed 750ml, Clear - 420 Extra on: 11/01/17
Very effective as long as the wood is dry by Mr Welby

wonderful preservative of all woods but especially effective on oak I was advised by my oak supplier and has certainly worked well on Oak and Sapele. Highly recommended.

Reviewed 2.5L, Clear - 420 Extra on: 10/01/17
Garden chairs look new again Product easy go apply, covers well by John Burman
Reviewed 125ml, Clear - 420 Extra on: 10/01/17