I want to apply a clear finish and also provide UV-protection, is this possible?
Yes, but only for vertically structured surfaces such as cladding, fencing, doors etc. Osmo UV-Protection Oils contain special ingredients which resists UV rays from the sun to a factor of 12 in comparison to untreated wood.
Horizontally structured surfaces such as decking and uncovered garden furniture allows rain to remain on the wood surface for potentially long periods of time, thereby reducing the UV resistance significantly, to the extent that we do not recommend using a clear finish on these types of surfaces unless a naturally greying effect is desired over time.
UV-Protection Oil requires a minimum drip angle of 15°C to offer a suitable resistance.