Technical and Chemical Characteristics

Paulownia is a hardwood, light on color and with light weight. The wood is very easy to handle. Folds without risk of breaking. Paulownia has a wide range of applications for indoor and outdoor use. 
  •   The stability of the size of the tree;
  •  Its strength in terms of increased humidity;
  • Paulownia is the most resistant of all the types of trees in the world when related to weight - and this is why it is called aluminum wood. Paulownia can be cut thinner and still provide about the same strength and weight, which offers a benefit in terms of space saving and can be cut to half thickness;
  •  It’s mass is about 224-304 kg / m3, which is almost one third of the mass of the oak and half of the pine and 23-30% of the weight of the water;
  •  Drying of the timber from Paulownia at open space takes 30 days and drying in an oven to moisture of 10-12% takes 24 hours and is without any distortion; 
  • Chemical composition: Hemicellulose Pentosan 22, up to 25%. Cellulose, 46 to 49%. Lignin, 21 to 23%. Water, 7 to 8%. Ash. 50, up to 1.1% Fiber, 58.5 up to 60.1%; 
  • The wood presents excellent characteristics, being easy to smooth, saw or carve; 
  • Trade name of the wood is: Paulownia, Kiri, Shima-giri; 
  • The wood of Paulownia is 4 times more expensive than that of oak and coniferous species.

Paulownia wood

Paulownia wood is light but strong and will not crack or split


 Table 1 Technical characteristics


Table 2 Performance analysis of reference fuels from biomass


Table 3 Content of chemical elements in the reference fuels from biomass