Gum Rosin, also called colophony or Greek pitch (Pix græca), is a solid form of resin obtained from pines and some otherplants, mostly conifers, produced by heating fresh liquid resin to vaporize the volatile liquid terpene components. It is semi-transparent and varies in color from yellow to black. At room temperature rosin is brittle, but it melts at stove-top temperatures. It chiefly consists of different resin acids, especially abietic acid.
There are main 3 kinds of gum rosin in China market: Pinus massoniana, Pinus kesiya, Pinus elliottii. Pinus Massoniana is best and has most widely used applications, second is kesiya,pinus elliottii is third.Our main product is Pinus massoniana gum rosin,
Natural organic compound,manly composed of resins.