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02.11.2017
The Highlands park of the AKC Metelkova mesto cultural centre, Ljubljana, is ...
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Oil for wood

Different oils are used in order to protect wood intended for outdoor use (e.g. tung oil, linseed oil). The effectiveness of such oils is highly questionable, since only superficial application of any oil cannot protect the wood against wood-rotting fungi and other wood pests over a longer period of time. The oils do not bind to the wood, which is why they will soon be leached out of wood. The lifetime of oil-protected wood is usually not longer than the lifetime of ordinary, unprotected wood.

The exception is creosote wood oil, used for the protection of railway sleepers. Railway sleepers are protected with creosote oil by vacuum-pressure procedures, which means that most of the wooden element’s cross section is impreganted with oil (in this case, not only surface of wood is protected). In addition, creosote oil for protection of wood is not in free sale and can potentially be dangerous to people and the environment, therefore wood, protected with creosote oil, should not be used in urban environments.

Moreover, oils leachability causes additional inconveniences: uneven appearance of the surface (stains), pollution of the environment, the need for frequent reapplications of coating. Surface of wood is also significantly darker after application of the oil, which is why the wood heats up more in the summer months, which causes crackings of wood elements.

In order to achieve excellent and especially much more durable hydrophobic wood surfaces, exposed to weather conditions, instead of oils, we recommend using Silvacera wax, which is of a natural origin, environmentally and people friendly and permanently binds to the wood surface and does not leach off from the wood. Silvacera wax does also not darken the surface of the wood and it reduces the possibility of cracking due to water repellency.