Everyone knows it: If the cozy garden furniture made of acacia wood or the beautiful wooden table is not covered and brought into the dry in time before the thundershower, the sensitive surface is threatened by weathering quite quickly. However, before you reach for the next best wood preservative or paint and brush, you should read up a little on the subject of wood waterproofing. This way, even as an inexperienced do-it-yourselfer, you will know what is important when it comes to wood preservation and avoid annoying and, above all, costly mistakes.
The generic term wood waterproofing covers various wood preservation methods. The aim of the various types of treatment is to protect the wood preventively against various organisms that could discolour or destroy the wood or – if there is already an infestation – to combat these damaging organisms. Preventive impregnation of wood should always be a priority. The waterproofing agents penetrates deep into the wood and acts on the surface and in depth: the wood is protected against fungi, mould and weathering.
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Hobby craftsmen who want to waterproof wood, apply the wood preservative by painting or spraying. Such work does not require special equipment and extraordinary craftsmanship.
However, before you set to work with fresh courage, you should learn about the various steps and learn valuable tips to achieve a good result. This way, you can be sure that the wood will remain attractive for a long time and fully serve its purpose
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If you want to treat your garden furniture or other wooden parts outdoors waterproof, you should choose an area that is as shady as possible to carry out the work. UV radiation can cause changes in some wood preservatives while they are still fresh and not dried. Never impregnate wood in extreme outdoor temperatures! Frost and heat are detrimental to impregnation. A temperature range of 5 – 25 °C is optimal for the application of most agents. When selecting a brush, pay attention to the manufacturer’s labeling. Not every brush is recommended for glazes or paints containing special solvents.
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If unfinished wood is exposed to water, water penetrates. Cracks and splits are the result. waterproofing en have a water-repellent effect and protect against signs of ageing.
Like every surface, wood used outdoors is at risk of ageing due to UV rays. waterproofing en act as sun protection here.
Wood is a robust natural material. Without bark and unprocessed, wood is quickly exposed to signs of ageing. To maintain its resistance to wind, sun and rain, you only need to visit waterproof.
How long does waterproofing protect the wood? We are often asked this question, but it cannot be answered as a general rule, because the durability of a waterproofing is influenced by several factors. The protective effect varies from wood species to wood species and the ingredients of the wood preservative also play a role. Wood that is exposed to rain and sun without protection needs to be re-treated after a shorter period of time than a garden chair that is almost always under a protective roof.
The different types of wood used in the manufacture of garden furniture and in outdoor structures have different susceptibilities to attack by blue stain fungi and damage from the elements. Spruce, fir and pine are very susceptible and must be carefully protected. Oak and robinia are considered particularly robust and resistant.
Would you like to learn more about the diversity of our waterproofing agents?
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In practice, various methods are used to apply or insert wood preservatives onto wood. The deeper the wood preservative penetrates into the wood, the more effective the protection achieved by impregnation. The depth of penetration depends on the method chosen and the type of wood to be waterproofimpregnated. In addition to painting and spraying, which is preferred by most hobby craftsmen, there are other methods for wood waterproofing, some of which we will briefly introduce to you.
In dipping, the wood is completely immersed in a tub filled with wood preservative for a few minutes to several hours. With an exposure time of a few minutes, a penetration depth is achieved that is comparable to the effect to be achieved when painting. With longer exposure times, the penetration depth can reach several millimetres. This method is mainly used in the professional sector. For small quantities, the relatively high demand for wood preservative would be uneconomical.
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In this process, the lumber is bathed alternately in hot and cold wood preservative. When the wood is in the hot bath, the air inside the wood expands. When changing to the cold bath, there is a soaking effect that promotes penetration of the wood preservative. With hot-cold impregnation, penetration depths of 30 – 50 mm can be achieved.
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This process is based on the diffusion principle. In this case, the wood preservative is not liquid but pasty. It is applied to the wood surface on undried wood. The treated wood is stacked tightly and carefully covered. It is left like this for up to 3 months so that the wood preservative diffuses into the interior of the wood and develops its protective effect.
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The wood preservation technologies described so far are pressureless processes. In the industry, the waterproofing agents is often pressed into the wood at high pressure (up to 10 bar). In this way, in most cases a more even distribution of the waterproofing agentss can be achieved than with pressureless methods. Not every type of wood is suitable for impregnation with pressure. Larch and Douglas fir wood is suitable for pressure impregnation to a limited extent. This method cannot be used for spruce and fir wood.
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Waterproofing our garden furniture was a task for our children. It is very reassuring that nothing can happen to them anymore due to the new mixture.
The NanoCare impregnation for textiles was the last rescue for my convertible fabric roof from my old Escort. I can now enjoy the summer again and prepare my car for the restoration next winter.
Wir waren auf der Suche nach einem innovativen Unternehmen, das moderne Lösungen in verschiedenen Geschäftsbereichen anbieten kann. Nano Care nahm sich die Zeit, um zu verstehen, wer wir als Unternehmen sind und in welchem Markt wir tätig sind. Bisher haben wir mit ihren Produkten für den Schutz von Gebäuden und Textilien, den Dura-Keramikbeschichtungen für Automobile und der revolutionären antimikrobiellen Beschichtung Liquid Guard gearbeitet. Das Feedback, das wir von unseren Kunden erhalten, ist mehr als zufriedenstellend. Wir empfehlen von ganzem Herzen die Zusammenarbeit mit Nano Care und die Implementierung ihrer Lösungen.
Grigor Mihov, CEO Nano Coat Bulgarien
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After the treatment of our parasol, the fabric looked like new. Now also nothing drips through and everything underneath stays dry.
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