Gum Rosin

1. Specification
Grade : WW grade
Appearance: Transparent Solid
Color: pale yellow ( Correspond to Standard Glass Color Piece of Rosin)
Softening Point( R&B),℃, Min: 76
Acid Value( mgKOH/g),Min: 166
Alcohol in Soluble Substance, ,Max: 0.03
Unsaponifiable matter, ,Max: 5
Ash, , Max: 0.02

2.Properties and uses:
It is a kind of natural resin, mainly composed of various kinds of resin acids, i