Osmo Decking Oil Colour: Grey 019 2.5 litre Tin

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This period is often around 10 – 12 weeks and can allow the wood to start to silver some, it depends very much on the time of year and level of exposure to the wood. You may find that it this time of year you may get away with minimal fading as we go through the winter. And the wood may then be ready for application come the Spring. Many wood species contain water-soluble coloured extractives ( eg Larch ) which may leach out naturally when weathered. Weathered, bare wood surfaces can be refreshed with Osmo Wood Reviver Power-gel. Ipe: 6-8 weeks exposure. 006 Bangkirai is optically suitable and a very popular choice of colour tone. Rosewood: 4-6 weeks exposure. However, Natural Oil Woodstain 727 Rosewood is optically suitable and requires a weathering period of approx. 12 weeks before use of Natural Oil Woodstain. Only apply in double figure temperatures and when the weather is set to be dry for at least the minimum drying time displayed on the tin. Single figure temperatures, damp or wet conditions could adversely affect the application and final finish of the product

Bare wood species with a high content of natural wood extractives need to weather off (min. 4 weeks) before the initial treatment or be cleaned with Osmo Brush Cleaner and Thinner (degreaser). When you start adding a little colour, the factor increases, so a light or natural oak for example will bring you up to a 20 – 30 factor and then a dark oak, rosewood, or dark brown will bring you up to a factor 50. This is the best way to maintain the natural colour of the wood over time, but of course if you don’t want to add colour then a clear oil with UV stabalisers will require annual top up. Staining can provide more colour options than oiling, but it can be more difficult to maintain and may require more frequent refinishing. However, oiling is often easier to maintain and when using a clear finish will offer a more natural look. In addition, oiling may not provide as much colour variety in comparison to staining. Its a bit of a battle to maintain the natural colour of these types of woods I am afraid, they will just naturally silver and for many people this is the desired result. It is a balancing act to get the best for the wood, protection or colour.

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Oils often come in natural colours or clear, and enhance the natural appearance of your wood,' explains Jimmy Englezos, senior product manager at Sherwin-Williams. Due to their surface properties, ribbed or grooved as well as rough (sawn) wood surfaces absorb more product per square metre than smooth surfaces.

After the weathering period, it is generally recommended to clean the surface from the extractive content. Osmo Wood Reviver Power-Gel can be used to refresh the colour of the wood. If necessary and before application, de-grease the dried surface with Osmo Brush Cleaner and Thinner (degreaser), always trial apply! Always, stir the contents of the tin thoroughly, at least for a couple of minutes before applying. This ensures that colour pigments and other important ingredients of the product are well distributed and not concentrated at the bottom of the tin. 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.

Bangkirai: 12 weeks exposure. 006 Bangkirai is optically suitable and a very popular choice of colour tone. If the finish is an oil it should have soaked into the surface of the wood and will naturally wear away over time, it will not peel and flake unless it has been over applied.Oils can not be removed with a stripper, some lift will come from using a pressure washer, but take care not to hold the nozzle too close to the woods surface as this will damage and splinter the wood.

It would need a little bit of experimentation first to get the right result, it may be that you only require a very small amount of the coloured oil added to the clear, it is vital to thoroughly mix them together. So small ratio measures first and tests on your wood, until you get the desired result and then you are able to mix up a larger quantity in the same ratio to complete the project. This will help you to control the colour a bit more for getting the lighter result. This depends on your home's exterior and the colours and tones in your garden. Avoid anything jarring, and look to either complement or contrast with your walls and fences.If possible, and if the wood is absorbent please apply the first coat to all sides before installation. Also oiled finishes although dry and ready to use after 24 – 48 hours continue to cure and get more durable for days and weeks following application. Covering will prevent the natural curing process from occurring and this is one of the reasons we do not recommend putting rugs over and oiled floor for the first month. 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. If it doesn't bead, you'll be ready to put on the oil. If it does then you'll have to clean it again until the water stops beading. As you have a dog I would recommend considering an oiled finish, this will be far easier to maintain over time, oils soak into the wood surface and so is less likely to be effected by claw marks, and even if it is, you can simply patch repair and the oil will blend well. Oils are also easy to maintain as they wear, simply ensure the surface is clean and dry and then you are able to apply a top up coat when needed, usually around 1 or 2 years down the line, depending on use.