How is Accoya® made?
The technology behind Accoya® is based on wood acetylation, a process that has been studied by scientists for more than 75 years and proven to be an outstanding method of improving the technical properties of wood. The process essentially alters the actual cell structure of wood by transforming free hydroxyl groups into acetyl groups. Acetyl groups simply consist of hydrogen, oxygen and carbon and are already present in all wood (ranging from 1% to 8% by weight) and can be derived independently from acetic acid, i.e. vinegar. Thus, the process does not introduce anything to the wood that does not naturally occur in it.
