Osmo UV Protection Oils are clear, UV rated oils for new timber joinery, pergolas, trellis, cladding and other vertically structured joinery. Not recommended for flat surfaces such as timber decking.
The finishes are UV Protection Oil 410 and UV Protection Oil - Extra 420.
The 410 has a low satin sheen, and is biocide free, which means it can be used internally on timbers such as window frames, french doors etc. It can also be used outdoors on items such as timber garden furniture, where food may be present.
The 420 has a higher satin finish, and contains biocides. These "Extra" ingredients help fight mould and fungal attack. The 420 should only be used on external timber surfaces where food will not be present. The UV resistance is the same for the 410 and 420.
On a 2 coat application, the UV Protection Oils block the greying process of the timber by a UV protection factor of 12, when compared with untreated timber. All untreated exterior timber will grey off over time, but UV Protection oil has been developed to slow the greying process. However, in New Zealand, due to the high UV light we have, the clear UV Protection Oils have a lifespan of 4 - 6 months in fully exposed weather conditions, and 12-18 months in areas that are totally weather protected. For longer protection, we recommend using one of the tinted UV Oils or Natural Oil Woodstain.
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