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Botanical name: lpil, kwila (Intsia spp.)
Grows in: South east Asia;
Hardness/Janka: 1500 - 1925; 49% harder than Northern red oak.
Color: Heartwood is yellowish to orange-brown when freshly cut, turning brown or dark red- brown upon exposure. Grain: Straight to interlocked or wavy; coarse texture. Variations Within Species And Grades: Moderate to high variation in color.
Properties: Dimensional Stability: Excellent (change coefficient .00158; 57% more stable than red oak). However, actual installations have demonstrated significant movement in use.
Durability: Strength is comparable to hickory, but density is somewhat lower. Workability Sawing/Machining: Sawing is difficult; wood gums saw teeth and dulls cutting edges; carbine tooling recommended. Sanding: Sands satisfactorily.
Nailing: Good holding ability.
Finishing: Wood stains black in contact with ferrous metals or moisture.
Comments: High resistance to termites.