Osmo UV Protection Oil Extra Clear Satin 420 - Tester Size 125ml

The Osmo UV Protection Oil Extra is a clear, oil-based finish designed to protect wood surfaces from the damaging effects of sunlight while allowing the timber to breathe. It forms a microporous layer that helps prevent cracking, flaking, peeling or blistering, and it resists water and dirt. By regulating moisture, the product minimises swelling and shrinkage to keep external timber looking good for longer. The finish is designed for exterior use on vertical joinery and offers robust UV protection, helping to slow greying and weathering. It is supplied as a professional-grade solution that is easy to apply, maintain and renovate, with no sanding required for future applications.

This product is suitable for a range of exterior vertical surfaces, including windows, doors, cladding, fencing and other joinery. It is designed to be durable against weathering and includes biocides to help prevent mould, algae and fungal attacks. The finish remains clear once dry and is formulated to protect timber over time without cracking, flaking, peeling or blistering.

• Clear, oil-based exterior wood finish with UV protection
• Microporous film lets wood breathe while protecting surface
• Resists water, dirt, swelling and shrinking of timber
• Biocides inhibit mould, algae and fungal growth
• Won’t crack, flake, peel or blister; easy to apply and renovate

• Coverage: 18m²/L with one coat; two coats recommended
• Application temperature: +5°C to 35°C
• Drying time: around 12 hours
• Suitable for Windows, Doors, Cladding, Fencing, vertical joinery

• Solvent-based, high VOC formulation
• For professional exterior timber protection

This description combines the core features and application notes into a clear overview suitable for consumers seeking a durable, UV-resistant exterior wood oil.