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โ๏ธ Keep your wood flawless and freshโbecause your outdoor space deserves the best!
Osmo 420 UV-Protection Oil Extra is a premium, oil-based wood preservative designed to protect and enhance exterior wooden surfaces. Its advanced UV-resistant formula slows greying while providing a durable, water-repellent, and microporous finish that prevents cracking and peeling. Made from natural vegetable oils and waxes with biocides, it safeguards wood against algae, mildew, and fungal attacks. Suitable for various outdoor wood applications, it offers excellent coverage and dries to a clear satin finish, ensuring long-lasting beauty and protection.










| ASIN | B0791DLVZR |
| Base Material | Wood |
| Best Sellers Rank | 1,285 in DIY & Tools ( See Top 100 in DIY & Tools ) 11 in Oils |
| Brand | osmo |
| Coating Description | Oil Based |
| Colour | Satin |
| Compatible Material | Wood |
| Container Type | Bottle |
| Country of Origin | United Kingdom |
| Coverage | 18mยฒ/L |
| Customer Reviews | 4.6 out of 5 stars 787 Reviews |
| Finish | Satin |
| Item Dimensions | 17 x 17 x 17 centimetres |
| Liquid Volume | 0.75 Litres |
| Manufacturer | Osmo |
| Material | Wood |
| Model Name | OSMO UV |
| Model Number | 420/1420 |
| Model name | OSMO UV |
| Number of Items | 1 |
| Opacity | 0.2 inches |
| Paint Type | Oil |
| Part Number | 420C |
| Recommended Uses For Product | Exterior wooden surfaces, including windows, doors, cladding, fencing, and other vertically structured joinery |
| Size | 750ml |
| Special Features | UV Resistant |
| Style | natural wood |
| Surface Recommendation | Wood |
| Surface recommendation | Wood |
| Unit Count | 750.0 millilitre |
E**N
Excellent wood protection
8 years ago our house was built with an area of Siberian Larch wood cladding on the outer kitchen wall. We wanted to enhance the grain and retain the colour with additional future protection against UV light, weathering and mould, etc. Our builder initially used 2 coats of this product on the wood and recommended we re-treat it with one coat every 2 years in order to retain the wonderful colour and grain effect. As shown in the picture, it still looks as good as new after exposure to 8 years of Scottish weather. It is very easy to apply and dries quite quickly. The 750ml tin is sufficient for at least 3 applications in our case, so very good value for money. I highly recommend this product.
J**S
Excellent product
I used this on the exterior of my shed and was very pleased with the results. The shed looks almost new. Easy to apply and dries quickly. Repels rain water. Does darken the appearance of the wood
C**M
Wood protection
Very wood finish takes some beating
O**E
Great product.
Very easy to apply to the quality timber on the garden studio.
J**T
Expensive but great finish. Coverage debatable
Brilliant for thermopine wood. A bit sticky going on so two coats not happening out of one tin for a barrel sauna. Dries and cures after about half a day but beads water really well and looks great, gives the wood a pleasant glow and finish. Expensive product but performs well
P**D
Great product - the best.
This Osmo product has to be the best thing on the market. I have put it on my new oak conservatory and it has kept its colour and not gone grey. It's not cheap, but there is a reason for that, because it is amazing.
M**.
Only the best.
Only ever use this on outdoor furniture. Trick is donโt let your furniture look drab! Routinely use this. Very light sand to remove any dirt and 1 coat. Year upon year furniture and table remains new. Very durable and very easy to use.
T**S
Time will tell
One coat so far and repelling water well. A rather expensive product though but time and the weather will be the judge of its true cost. Has a similar feel to a slightly thinned varnish.
Trustpilot
1 month ago
2 months ago