Ceiba pentandra plant is a producer of Randu wood or better known as kapok tree or silk cotton. In Indonesia, this tree can be found easily. The population of kapok trees is quite large because this tree is cultivated by the community and becomes one of the industrial plant commodities.
The kapok tree is a group of large and tall trunked plants. This type of tree can grow with 8 meters to 30 meters height and the size of the trunk diameter can reach 3 meters. The texture of the bark of the tree trunk is prickly and slightly sharp.
Although it is not recommended for heavy building construction because it is classified as soft wood; but behind its weaknesses, kapok wood turns out to have its own uses. This wood is often used as raw material for plywood and pulp for paper. This wood is also used for wooden board product. Wooden boards made of kapok wood are usually used for light needs. It because this type of wood does not have good resilience and strength.
Who says that kapok wood can’t be used as a building material? In fact, this wood can be used for retaining castings or as a formwork. The use of this wood as formwork because the price is quite cheap and easily available in the market. In addition, the casting process does not require a good type of wood. Moreover, castings retaining boards are usually only used once. So it’s a shame to use an expensive type of wooden plank to be used as formwork.
In addition to the wood, the fruit of the kapok tree is the main commodity for the people who cultivate it. Kapok farmers will usually harvest kapok fruit and sell it to collectors. This kapok fruit is used in various industrial fields. Including the furniture industry to the electronics industry.
However, it is mainly used in the textile industry. The fiber in the kapok fruit is used as the main material for making yarn. Meanwhile, in the furniture industry, cottonwood fiber is used as stuffing for sofa cushions, mattresses, and upholstery. In the activities of the electronics industry, cottonwood fiber is used as a heat insulator and sound absorber.