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This woods beauty extends below the surface!
Thermal modification, which is an emerging, chemical-free technology in the U.S., can add substantial value to wood.
August 30, 2018Thermal Modification vs Torrefaction. Are there similarities?
November 1, 2018Thermally modified wood has some hidden secrets that need to be brought to the surface. Once wood is thermally modified it changes it’s genetic makeup but also transforms the woods internal color. At a specific point during modification when temperatures reach specific levels the woods lignin, cellulose and hemicellulose are effected which darkens the wood’s natural appearance both on the surface and its interior.
The change in the coloration of wood during thermal modification is not necessary leading to its durability and stability: the reactions which are responsible for changing color during modification are different than reactions which are responsible for durability.
No impregnant agents are used in the process of thermal modification. The process of the wood darkening is totally natural. Different types of wood species darken differently during the process of thermal modification. The Ash species which is currently widely used results in medium/dark shades of brown.
The resulting consistent color within the wood is an added benefit when working with the wood allowing for sanding and reworking such as cutting or re-sawing resulting in the same color as its surface. It provides flexibility with applications such as trimming out deck and siding surfaces or making custom moldings or other wood products.
