Osmo UV Protection Oil Extra - 2.5L - Clear Satin-Matt

The primary benefit is its enhanced protection against the greying effects of UV radiation, offering a UV protection factor of 12, while also protecting against moisture, mould, algae, and fungal attack.

For future applications, sanding is generally not necessary. However, ensure the surface is clean and dry. If applying to a previously finished surface that is heavily worn or damaged, light sanding might be beneficial.

This product is specifically designed for exterior wood applications. For interior wood, Osmo offers a range of specialized interior finishes.

The longevity of the protection depends on exposure to weather conditions. Typically, reapplication is recommended when the water-repellency diminishes or signs of wear appear, which can range from 1-3 years depending on the environment.

UV Protection Oil Extra offers significantly higher protection against UV radiation and greying compared to the regular UV Protection Oil. It is also richer in active ingredients to guard against mould, algae, and fungal attack.

It is not recommended to apply directly over existing paint or varnish. The surface should be clean, bare wood or previously oiled wood. If painting or varnishing, ensure those coatings are removed first.

Clean regularly with water and a mild detergent. For more intensive cleaning, use Osmo Wash and Care. Avoid harsh abrasive cleaners.

Ensure the oil was applied thinly and evenly. Avoid over-application. If the finish is still wet, try to gently smooth out any brush marks with a clean brush. For dried finish, light sanding may be required before reapplying.

This product is most effective when applied over a colored base coat. Ensure two coats of UV Protection Oil Extra have been applied if used on bare or previously oiled wood without a color base, and that sufficient drying time has passed between coats.

Ensure the product has been thoroughly stirred. In colder temperatures, the oil may thicken slightly; consider applying in a warmer environment or very slightly thinning with Osmo Thinner (product number 800) if absolutely necessary, though this is generally not required.

The oil may not have fully cured, or the protective layer may need reapplication. Ensure adequate drying time has passed according to the product's instructions. If the wood absorbs water, it is time for a maintenance coat.