

☀️ Keep your wood flawless and fresh—because your outdoor space deserves the best!
Osmo 420 UV-Protection Oil Extra is a premium, satin-finish wood oil designed to protect and enhance exterior wooden surfaces. With advanced UV resistance, water and dirt repellency, and a natural biocide formula, it preserves wood’s natural character while preventing greying, swelling, and fungal damage. Suitable for various outdoor wood applications, it offers excellent coverage and easy application, making it a top choice for long-lasting, eco-conscious wood care.










| ASIN | B0791DLVZR |
| Base Material | Wood |
| Best Sellers Rank | 2,093 in DIY & Tools ( See Top 100 in DIY & Tools ) 13 in Oils |
| Brand | osmo |
| Coating Description | Oil Based |
| Colour | 420 Clear |
| Compatible Material | Wood |
| Container Type | Bottle |
| Country of Origin | United Kingdom |
| Coverage | 18m²/L |
| Customer Reviews | 4.6 4.6 out of 5 stars (769) |
| 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 | 420C |
| Opacity | 0.2 inches |
| Paint Type | Oil |
| 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 |
| Unit Count | 750.0 millilitre(s) |
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
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.
C**M
Wood protection
Very wood finish takes some beating
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.
S**S
Impressed with this wood treatment.
Great item, quite expensive. The oil is easy to apply and the wood appears well protected now. Used on new and 50 year old wood.
G**2
Quality product
Great coverage, a little expensive but has brought out the natural colours in the wood. Very easy to apply and dried quickly
S**Y
Excellent quality easy to apply and goes a long way
Love this product so easy to apply and great protection for your wood. Nice satin finish and highlights the grain beautifully on my oak beams
M**N
Good weather protection
Easy to use, effective, expensive.
A**A
Really great product, super fast shipping. Price was a little on the higher side for the quantity, but if I don't need to re apply every year than it's money well spent! Let's hope I don't need to do it again!
Trustpilot
3 weeks ago
1 month ago