The wood should always be cleaned before applying the wood oil. However, wood oil must not be applied to wet wood, as water prevents the oil from penetrating the wood and the surface may peel off. The new pressure-treated wood is sufficiently dry about 6 months after construction.
During the treatment and drying of the wood oil, the temperature of the oil, air, and surface must be above + 5 °C and the relative humidity of the air below 80 %. It is not advisable to apply the oil in the harshest sunshine, as drying too quickly will prevent oil from being absorbed into the wood and the treatment may be incomplete, or it may create a non-breathable surface film on the wood.
WOODCARE.GUIDE Wood oil should be mixed thoroughly before use and regularly during use. Avoid contact with skin and eyes. You can use a brush, roller, sprayer, or dip to apply the wood oil. The advantage of the sprayer is better access to the edges of the boards. If the oil is not absorbed during the application, an oil film has remained on the surface of the wood from previous treatments, which has not been removed before the treatment. See Cleaning wooden surfaces. Also, remember that the treatment should not be done on wet or rotten wood. In this case, the wood oil will not work as expected or desired.
The general guideline for wood oil manufacturers is to treat wood thinly twice, as the majority of wood oil users do. But despite the instructions for two coats in our jars, WOODCARE.GUIDE Wood Oil can also be used to treat wood by applying only one abundant layer. Two thin layers may not produce the same good results, because especially when applying in warm weather, the first application may make it difficult to absorb the second application properly.
If stains remain on the surface after the first application, reapply the stained areas. Wipe off unabsorbed oil about 30 minutes after application with a dry cotton cloth, sheet, etc. Be careful not to over-treat the wood, as it will cause a film on the wood surface that will prevent oil from being absorbed inside the wood and make the wood non-breathable.
The best temperature for WOODCARE.GUIDE Wood Oil treatment is +15 °C … +25 °C degrees as well as cloudy weather, so the sun does not shine directly on the surface to be treated and dry the oil before it has been absorbed. Night dew should also be avoided during the drying time of the oil as it dilutes the product and changes the composition of the substance. Note that the recommended drying time (approx. 16−24 hours) is based on a temperature of + 23 °C degrees and 50 % humidity. The surface is dust-dry about 4 hours after treatment. Lower temperatures may multiply the drying time.
Properly oiled and treated wood does not absorb water, which reduces the swelling and shrinkage of the wood. The purpose of wood oil is to impregnate the wood, not to form a thick film on the surface of the wood.
The tight and completely non-breathable film is visible as a bead of water, which is generally considered a good thing when the wood does not absorb any rain. However, wood oil is better for wood, as a result of which no water beading occurs. The water that accumulates in droplets takes longer to dry and exposes the wood surface to harder wear. In addition, water droplets cause a magnifying glass effect on the surface of the wood and amplify the effect of sun rays on the wood.
WOODCARE.GUIDE Wood Oil contains natural oils as well as modified alkyds. Alkyd particles are very small relative to natural oils such as linseed oil. The combination of micronized alkyd particles and natural oils enables a more even finish and the unique absorption of WOODCARE.GUIDE Wood Oil into the smallest causes of wood, without forming a non-breathable film.