Cumaru (Brazillian Teak) - is known especially for its superior hardness and durability Its color ranges between a tan brown to a reddish brown with some boards displaying black striping. Unlike most exotic hardwoods however, Cumaru's color changes little from its original tone and gradually mutes to a uniform color over time. Cumaru naturally weathers to a beautiful, silver gray patina. To maintain this rich tone, we apply a UV inhibiting oil . Application of sealers is optional. The wood has excellent weathering possibilities, rated 25 years against decay and insect damage with applications having longevity of over 50 years.