Arbor Wood is thermally modified wood produced in a specialized, 3-phase kiln chemical free process using only heat and steam. An initial gradual increase in temperature reduces the equilibrium moisture content (EMC) of the wood. Phase 2 sees a rapid spike in temperature and is where the magic really happens. The cellular composition of the wood is altered in this high-heat, oxygen-deprived environment which converts the natural acids and sugars so as to no longer be a food source for mold, rot or fungal decay. This change also renders the wood ‘hydrophobic’, meaning it loses much of the natural tendency to absorb water going forward. As a natural byproduct of the process the wood takes on a richer, dark tone throughout giving it a look similar to that of exotic species. The 3rd and final phase introduces steam to cool the wood down and bring the EMC back up to a suitable level.
Thermal modification is one of the most natural, chemical-free ways to extend the life of wood products.