OSMO | Decking Oil Thermowood 750ml 010

750ml Thermowood Decking Oil

• Natural oil based protective finish for exterior wood that does not peel, crack, flake or blister
• Microporous, breathable finish allowing the wood to breath and reduces the risk of swelling and shrinkage
• Water-repellent, extremely weather and UV resistant

Easy to apply as well as renew, no sanding or primer necessary

• When dry, the finish is safe for humans, animals and plants and is suitable for children’s toys as per EN 71.3 (European norm)

Coverage

• 24m²/L with one coat

Coats

• 2 coats, or one colour coat plus top coat of Osmo Anti-Slip Decking Oil 430

Surface Preparation

• Bare wood species with a high content of natural wood extractives need to weather off (min. 4 weeks) before the initial treatment 
• Resinous wood, such as Larch or Douglas Fir, needs to weather off for at least 6 weeks to improve absorbency
• Pressure impregnated wood and tropical species like Massaranduba, Bangkirai, Garapa, Iroko need to weather off for at least 3 months
• Cedar requires a 3 month weathering period to improve absorbency
• Greyed and weathered wood can be refreshed with Osmo Wood Reviver Power-Gel before applying Osmo Decking Oils
• Avoid using jet / power washers to clean the surface as they can significantly affect the coverage of Osmo Decking Oils
• Wood surface must be clean, dry and frost-free (moisture content max. 20%)
• Osmo Decking-Oil is ready to use
• Do not thin
• Stir well using a flat stirring stick or spatula before use
• Thoroughly clean or lightly sand old microporous stains or completely remove old varnishes before application
• If any sanding works are carried out some fresh wood species must be weathered as directed above to improve absorbency once more
• Sanding to finishing grades of no more than a P120 grit are recommended
• Always wear a dust mask when sanding
• If possible, and if the wood is absorbent, please apply the first coat to all sides before installation
• The finished surface is influenced by several factors, including the condition of the wood
• Therefore, a trial application is always required, especially for unfamiliar surfaces

Method of application

• Use stiff brush  or a lint free cloth  and apply thinly and evenly to the clean and dry wood surface along wood grain
• Allow for good ventilation while drying. Lower temperatures and higher humidity levels will delay drying
• Once dry apply the second coat – also thinly
• If a less intensive colour is desired, the second coat should be carried out with clear Anti-Slip Decking Oil 430  

Generally the more rich and dark the colour chosen, the higher the level of UV protection offered. 

Avoid applying clear Anti-Slip Decking Oil 430 as a stand alone finish as this offers limited UV protection.

Suitability