A vacuum chamber process that causes a special blend of monomers & acrylics to completely penetrate a material, such as hard or soft wood, ivory, bone, horn, etc.
Even soft wood can then be used for knife handles, since they having been stabilized are now quite hard, resistant to color fading, do not warp due to heat & humidity, are affected little by water, many acids and solvents. The wood will not crack, check, warp, swell or shrink. It also does not require a wood preservative finish.
Wood with good color character is normally stabilized with no color added. Some wood, such as the Ponderosa Pine shown below can be stabilized using dyes to make uniquely beautiful "new" hardwood.
Natural "Pecky" Pine
The same pine stabilized in gold, red-brown and black
For further information go to Wood Stabilizing Specialists, Inc.
To see wood I have that are stabilized and
available for knife handles,