Cuprinol UV Guard Decking Oil can be brushed or spray applied to penetrate into the wood to replace natural oils and resins lost through weathering. Its tinted formula revitalises the colour of weathered wood. A 2.5 litre can covers up to 20m² with 2 coats brush applied or 1 coat spray applied. Coverage can vary depending on the application method and the condition and nature of the surface. Drying time is up to 6 hours but this can vary depending on the nature of the surface and the weather conditions.