Does the process affect only the surface layer of the wood or does it penetrate into the middle of the board?
Accoya® is modified all the way through, not just at the surface layer like many alternative treatments. This means that users can have absolute confidence in Accoya®’s durability in a way that has not previously been possible. When Accoya® is cut or jointed there are no exposed unacetylated surfaces in any dimension. This completely negates the need to apply additional chemical preservatives on-site, as is necessary with unmodified or envelope treated woods.
