Products > Gum Rosin

Gum Rosin

GB / T8145-2003:

                         Grade

Specification

X

WW

WG

N

M

K

Appearance

Transparent Solid

Color

Slightly yellow

Pale yellow

yellow

Deep yellow

Yellow brown

Yellow red

Correspond to the Standard Glass Color Piece of Rosin

Softening Point(R&B),℃ min

76

75

74

Acid Value,mgKOH/g min

166

165

164

Alcohol insoluble Substance,% max

0.03

0.03

0.04

Unsaponifiable matter,% max

5

5

6

Ash,% max

0.02

0.03

0.04

Note :

1. Properties and uses : It is a kind of natural resin , mainly composed of various resin acids . It can be dissolved easily in many organic solvents , and has special chemical activity . So it is an important raw material for the manufacture of paper , coatings , inks , rubbers , soaps , electronic industrial products , food grade ester gum , and rosin ester resins etc .

2. Packing : Drum —— Net weight 225kgs each drum .

3. The standards of GB / T8145-2003 is national standard of People's Republic of China . If there are changes , the last standard will be executed and assured by contract .


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