Thai / Burmese Tectona grandis
Color: Heartwood varies from yellow-brown to dark golden brown; turns rich brown under exposure to sunlight. Sapwood is a lighter cream color.
Grain: Straight; coarse, uneven texture.
Species & Grade Variations: Moderate to high color variation.
Hardness (Janka): 1000; 22% softer than Northern Red Oak.
Dimensional Stability: Excellent (change coefficient .00186; 50% more stable than Red Oak).
Durability: Strength values are similar to those of American Oak.
Sawing / Machining: Moderate ease in working with hand and machine tools; silica in wood dulls tools quickly; carbide tooling is recommended.
Sanding: Clogs abrasives; frequent sandpaper changes are required.
Nailing: Good holding ability.
Finishing: Natural oils may interfere with adhesion and drying of some finishes. To reduce the wood’s tendency to repel finish coats, surface rcesins may be removed with a solvent that is compatible with the finish to be used.
Comments: Has an oily feel. Unique in that it does not cause rust or corrosion when in contact with metal. Respiratory and dermatological allergic potential.
(Relative to plainsawn select Red Oak.)