Gum Rosin By Zhongao International Chemcal Co., Ltd.

Chemical Name : Gum Rosin
MF: C20H30O2
CAS No.: 8050-09-7
HS number:3806101000
Appearance : Slightly yellow lump

Specification:
Item : Grade and Requirements
X WW WG N M K
Color slightly yellow pale yellow yellow deep yellow yellow brown yellow red
Correspond to the standard glass color piece of rosin
Appearance transparent solid
Softening Point
(ball & ring) 76 A C min 75 A C min 74 A C min
Acid No. : (mgKOH/g ) 166 min 165 min 164 min
Unsaponifiable : Material 5% max
Ash ( % ) , max : 0.02 0.03 0.04
Package: in 225kgs net per galvanized steel drums.

Usage of Gum Rosin:
At present, most rosin product is used for the manufacturing of paper, paint, soap and printing ink:
Rubber based adhesive, synthetic resin based adhesive and vegetable adhesive all have rosin as one of their ingredients.

In the paint industry:
Rosin as a natural resin with abundant sources, is easily dried and smooth on its surface. It will continuously be the basic raw material for paint producing.
In printing ink industry: Rosin is mainly used as color carrier of the ink and to increase its adhesion to paper. Without rosin in the ink, the presswork will be blurred.
In the Papermaking Industry:
Sizing agent made from rosin can prevent ink from dispersion, improve the strength and smoothness and enhance abrasion resistant of the paper.
In the rubber industry: Rosin is used as a softening