Kebony is based on a process where sustainable wood is made more durable, harder and more stable using liquids from biowaste material. Kebony is a sustainable alternative to hardwoods from tropical regions. The products resemble teak and other tropical varieties of wood. It is dark, and acquires a silver grey patina over time if left untreated. One of the notable benefits of Kebonization is the resistance to weather and wear. Other notable benefits are exceptionally good decay resistance and long life span. This durability is achieved without the drawbacks associated with traditional impregnation methods which are why we apply the Swan eco-label (the official Nordic eco-label, introduced by the Nordic Council of Ministers).
The Kebony technology is a cost effective, sustainable and independently verified alternative to depleting hardwoods. The company’s patent-protected processes yield products that deliver major improvements in durability and dimensional stability, at the same time as they are aesthetically pleasing. Kebony products are suitable for a multitude of applications and designs – encompassing both indoor and outdoor applications.
Kebony is also an environmental friendly alternative to the traditional use of toxic chemicals for wood impregnation. A global environmental awakening is one of the key drivers for Kebony’s products as regulatory authorities are pushing for environmentally friendly alternatives. The prohibition of chromated copper arsenate (CCA) products in most parts of the world and the ongoing debate of the use of toxic chemicals for wood impregnation are key examples on how the public is making an impact on the demand for Kebony’s products.
The furfurylation process gives the wood a darker colour which makes Kebony wood resemble Teak, Ipé, Mahogany and other tropical varieties of wood. It also acquires a silver grey patina over time, if left untreated. A major benefit of Kebonization is the resistance to weather and wear. Other notable benefits are exceptionally good decay resistance, increased hardness and long life span. This durability is achieved without the drawbacks associated with traditional impregnation methods, which are why Kebony is FSC ® certified and is allowed to apply the Swan eco-label (the official Nordic eco-label, introduced by the Nordic Council of Ministers).
Kebony costs a bit more than toxin treated timber, but Kebony will last approximately three times as long. The lifecycle cost of Kebony will be about half compared to buying and maintaining treated or impregnated timber. Tropical timber, such as teak, mahogany and other endangered wood species will, normally, cost more than Kebony.
Principles- There are various wood modification methods, all of which permanently alter the structure of the cell walls. These include methods like heat treatment, acetylation and polymer grafting.
Kebony modifies wood by forming stable, locked-in furan polymers in the wood cell walls. These increase the dimensional stability as well as durability and hardness of the wood. The process is based on impregnation with furfuryl alcohol which is produced from agricultural crop waste. Kebony thus uses a plant derived waste product to give enhanced strength and durability to another plant product – namely wood.
Impregnation- In order to reach the required level of polymer in the wood, a traditional impregnation process is used. Although there are constraints in the selection of wood species for a successful impregnation, there is a range of Kebony products based on different species available.
Curing & Drying- After the impregnation step the wood is heated - whereby the in situ polymerisation of the furfuryl alcohol occurs. This step is referred to as the curing step. The resultant polymer, which is locked into the wood cells, is very stable and will not disintegrate or leak out of the wood.
Packaging -Finally the cured wood is dried and the finished Kebony product is ready for shipment or further machining.
Environmentally Friendly- The materials have no harmful effects on the environment. Production of Kebony is based on a liquid extracted from biowaste. In the waste disposal phase Kebony can be regarded as regular untreated wood.
Aesthetic- The decking has a golden brown color which naturally turns to a silver patina when untreated, just like a traditional teak deck.
Cost Effective- Excellent durability and long life spans in harsh climates equate to great value. Our Kebony kits typically cost about 75% of similar teak deck kits.
Excellent Adhesion- Our pre-made Kebony panels can be easily applied using standard marine adhesives or epoxy. Because Kebony does not contain a significant amount of oil in the wood like teak does, there is no risk of the oils causing the material to release the adhesive bond.
Easy to Maintain- Kebony requires no further maintenance beyond regular cleaning. However, occasional oiling will help maintain the original golden brown color.
Good Compressive Strength- The Kebonization process increases the density of the material and makes them stiffer and significantly harder than untreated woods. There is no problem mounting high load hardware on top of the Kebony decking.
Sustainable- The raw materials for Kebony are acquired from commercially managed forests with large timber harvests. All timber suppliers hold certificates guaranteeing the origin of their product.
Resistant- Protects against decay, fungi, insets and other microorganisms.
Non-Toxic- Kebony contains no chemicals that can be released into the environment. The polymer is permanently bonded to the cellular structure of the wood by means of a process which cannot be reversed.
Dimensional Stability- The Kebonization process results in the wood cells being permanently blocked which, compared with traditional hardwoods, reduces expansion and contraction by about 50%.
For the do it yourselfer we can supply Kebony as raw materials or pre-assembled panels ready glue down.
DIY materials are available in 40 and 130mm widths and 9mm thick. Lengths will vary between one and three meters.
Our pre-assembled panels will arrive ready to adhere to your deck. Large panels may be split for shipping and will require that the seam be caulked and sanded after installation. All pre-made panels are 9mm thick (3/8”).
Please contact us to discuss your project in more detail.