Osmo UV Protection Oil Extra – 420 Clear Satin or Matt

● ULTIMATE WOOD SHIELD – Keep your outdoor wooden surfaces looking beautiful and protected with the Osmo UV Protection Oil Extra. This wood preserver outdoor oil has been developed to slow the greying process and enhance the natural character of your outdoor wooden surfaces.

● LONG-LASTING PROTECTION – An extremely durable and hard wearing wood oil that is highly water and dirt-resistant, moisture regulating and reduces wood swelling. This wood sealer ensures a microporous, penetrating finish that does not crack, peel, or flake, and is safe for humans, plants, and animals when dry.

● VERSATILE USAGE – This outdoor wood protector is perfect for various external wood surfaces such as windows, doors, cladding, fencing and other vertically structured joinery that are prone to sun damage. This wood preservative offers excellent coverage of approx. 18㎡/L with one coat.

● NATURAL FORMULA WITH BIOCIDES – Formulated from vegetable oils and waxes, the Osmo UV Protection Oil Extra contains biocides to protect against algae, mildew and fungal attack. The wood preserver is safe to use while offering long-term wood protection.

● EASY WOOD APPLICATION – Prepare wood surface by making sure it’s clean, dry and frost free. Sand surfaces, then apply the first coat. Dry for 12 hours, and apply the second coat thinly. Fresh wood containing natural wood ingredients need to weather off first before applying the product.

Osmo UV protection oil is suitable for the following woods –
● Oak
● Beech
● Ash
● Alder
● Birch
● Thermowood
● Thermally Modified Timber

You can apply Osmo UV protection oil 420 straight onto bare wood such as Oak, Beech, Ash, Alder and Birch.

For softer woods such as Pine, Spruce and Douglas Fir it is recommended to first apply a coat of WR Base Coat as this will protect against wood rotting and wood staining fungi which is very common on soft wood.

For ingredient rich or oily wood species like Cedar, Iroko, Mahogany, Teak, Walnut, Ipe, Merbau, Wenge, Rosewood, Sycamore and Sapele it is best to leave for around 12 weeks before application of Osmo UV Protection Oil Extra 420 Clear. The weathering period will help to improve the absorbency of the wood so the oil will soak into the timber better.

Some woods can grey over time due to weathering. If this is the case, then it is recommended to de-grey the wood with Osmo Wood Reviver Power Gel first. This will clean the wood, ready for application Osmo UV Protection Oil Extra 420. You must ensure you completely remove all the Power Gel before application to ensure the oil soaks into the grain of the wood correctly. Osmo UV Protection Oil usually prevents greying by a factor of 12. The tinted version actually has a higher UV protection due to the additional pigments so is better at preventing this.

This really depends on how much weathering and rain your timber receives. It most cases you should re-apply the Osmo 420 Clear UV Protection Oil every 3 years but for areas that receive a large amount of rain or strong wind, then it is recommended to re-coat once every year. Also, on decorative areas such as exterior Oak doors and windows, it is recommended to treat yearly to ensure no damage or discolouration to your timber.

Osmo UV Protection Oil Extra is ideal for use on an exterior wooden pergola. It offers a water-resistant finish and enhance the colour of the natural timber. This will work on most exterior wooden structures along with fences, gates, garage doors and much more.

You can use this wood oil on decking although Osmo Decking oil is a far better option. With Osmo Decking Oil you will get better protection as it is designed for higher traffic areas. The Decking Oil will enhance the natural wood and offer a water and dirt resistant finish. It also comes in a variety of tinted colours that protect against water logging, swelling and shrinkage.

Yes, Osmo UV protection will work on vertical wood surfaces like wood cladding and fencing etc. This oil contains special properties that help to resists UV rays from sunlight to a factor of 12 compared to untreated wood. For horizontal wood surfaces, like decking or garden furniture, the rain can remain on the wood surface for long periods of time. This will reduce the UV resistance significantly over time. For a stronger form of UV is protection is the Osmo UV Oil Tints have additional pigment that provides more UV strength and protection on the timber. If you like the naturally greying effect that is created over time, then this finish is fine to use.

This all depends on your sign. Most Osmo exterior products are suitable, ranging from clear finishes to coloured finishes. Keep in mind that the UV-Protection Oil requires a minimum drip angle of 15°C to offer a suitable resistance.

It is not recommended to apply a UV tinted colour over the top of a clear, as the colour will not be able to penetrate the wood correctly now there is a barrier with the clear. If the colour can not soak into the wood correctly, it can lead to a streaky finish.