Heartwood olive brown to blackish, often with lighter or darker striping, often covered with a yellow powder; sharply demarcated from the whitish or yellowish sapwood. Texture fine to medium; luster low to medium; grain straight to very irregular; rather oily looking; without distinctive odor or taste.
Sizes Available:
Special sizes can be ordered.
Mechanical Properties:
Janka side hardness is about 3,680 for lb. for dry material. Shrinkage green to ovendry: radial 6.6%, tangential 8.0%, volumetric 8.0%.
Working Properties:
Moderately difficult to work especially with hand tools; has a blunting effect on cutting edges, finishes smoothly except where grain is very roey The fine yellow dust produced in most operations may cause dermatitis in some workers.
Durability:
Heartwood is very resistant to attack by decay fungi and termites; not resistant to marine borers. T. guayacan however, is reported to have good resistance in Panama waters.
