1.It is distilled from natural resin of Pinus massoniana and Pinus elliottii.
2.A mixture of various organic acids, having peculiar chemical activity, not knotted.
3.The advantages of high crystallization and softening point. The softening point is 100-110 C and the acid value is less than 30. abroa.
Black glossy solid.
Mainly used in the production of paint, ink and rubber.