Knowledge About Density And Type of Balsa

As we have introduced in our previous articles, balsa is one of the most popular wood types both in domestic and international markets. It can be used widely for making surfboard, models, doll houses and furniture, especially for making airplane models. It is the most light wood in the world, but it is very durable and has great strength. Generally, it is more expensive than other kinds of wood. It is the wood from balsa trees. Balsa tree is one kind of trees that mainly grow in the rainforest in America.
Frankly speaking, the balsa wood can be sorted into three types as we have introduced before. Here we will give you a more detailed introduction. Well, the wood can be A-Grain, B-Grain and C-Grain. The grain type is determined by the orientation of the cut to the grain. And the grain direction controls the rigidity and flexibility more than the density of the wood. A-Grain balsa wood has long grain lines along the length of the wood. It is the most easy type to carve since it is very flexible and can be bend very easily around curves. This kind of wood is the best choice for sheet covering rounded edges, planking, and making flexible spars. B-Grain has shorter lines than A-Grain, and feels stiffer across the sheet. This is perhaps the most common grain type. While C-Grain has a mottled appearance. Aesthetically, it has better grain detail and it is better for use where the look of tighter grain pattern is desired. Compared with other grains, it is more warp resistant and stiff. If you need the strong wood, you are advised to choose C-Grain balsa wood.
Here comes the density of balsa. The balsa wood varies widely in density. Believe it or not, the balsa ever being found weighing as little as 4 lbs. per cu. ft. However, there are also balsa weighing as much as 25 lbs. or more per cu. ft. Generally, the average weight of commercial balsa will weigh between 6 lbs. per cu. ft. The average weight of balsa should be 8 to 12 lb and the most plentiful. Six pounds or less is very rare and difficult to obtain.
When selecting balsa, you are advised to choose the most light one. You are advised to take consideration of the way the grain runs through the sheet as well as the weight of the sheet as we discussed above. The rigidity or flexibility of a balsa sheet mainly depend on the grain direction actually. Frankly speaking, SYNHONG is one of the most famous supplier of balsa. We supply high-qualified balsa wooden raw materials as well as related industrial products, e.g. balsa sheet, balsa rectangle, flexible panel and other standard balsa sets. To find more detailed information, please visit our website: http://www.balsafactory.com