Preparation: Decked areas to be treated should be clean, dry and free from dirt, debris and other surface contaminants. If the oil on the test area beads or sits on the surface, does not dry or remains sticky after 24 hours, it is an indication that the timber has taken as much oil as it can and is not ready for more. If necessary and before application, de-grease the dried surface with Osmo Brush Cleaner and Thinner (degreaser), always trial apply! Made with 100% natural bristles with soft tips which gives fine control in achieving the desired effect. To keep your finish looking its best for longer, regularly clean your deck and remove leaves, mould, mildew, algae and any other dirt.

If wooden decking has not been treated for several years and is exceptionally dry, it may absorb 3 coats of oil. Oil-based decking treatments work by penetrating into the decking timbers, where they dry, oxidise, and harden within the wood grain of the timber.

They are designed to be used as a top-coat over an existing clear or coloured decking oil once it has dried, to provide an anti-slip or slip resistant finish. For a quick and easy application, we recommend using Osmo Decking Brush (150 mm) which was tailor-made for decking and allows you to apply the finish while standing. Available in both clear and coloured formulations, the following oil treatments are suitable for both softwood and hardwood decking.

If used on Wooden Garden furniture, make sure the coating has fully dried/cured and is colour fast before use. These products are designed to clean and prep wooden decks prior to oiling, and are also used for the general cleaning of oiled decks. Barrettine All-in-One Decking Oil is a highly versatile, Oil based finish decking oil that is ideal for treating and protecting wooden decking. Remove all furniture and use a pressure washer or specialist decking cleaner to get rid of dirt, oil, mould, leaves and any other detritus.

These domestic cleaning products are designed to break down and remove oils, stains, and grease from surfaces. If an oil is applied too soon, it may not penetrate in to the decking timbers, resulting in a sticky or tacky film on the surface of the wood. Resinous wood, such as Larch or Douglas Fir, needs to weather off for at least 6 weeks to improve absorbency. Some types of exotic hardwood timber such as Ipe, Yellow Balau, Massaranduba Cumaru, Iroko, Merbau, and Teak may require a highly refined or extra thin oil such as Osmo Decking Oil for the best results.

Greyed and weathered wood can be refreshed with Osmo Wood Reviver Power-Gel before applying Osmo Decking Oils. This means that decked areas will naturally grey over time, albeit at a much slower rate than decking treated with a non-UV resistant decking treatment.

The best time to do this is in Spring and Autumn, in dryer, warmer conditions, so that the oil can penetrate into the decking timbers. In addition to applying a fresh coat of oil in spring, it is also recommended to apply a maintenance coat or 2 before winter sets in. With the additional benefit of being highly resistant to UV rays and rain, Barrettine All-in-One Decking Oil is an excellent choice for decking protection for deck boards, deck tiles and balustrades. It’s easy to apply and dries quickly, creating a low-sheen finish that looks natural in all elements. These fast growing, evergreen, or coniferous trees produce highly durable timbers, that are perfect for softwood decking boards.