Product name: Colophony

Other name: Gum rosin

CAS No. 8050-09-7

Molecular formula: C20H30O2

Molecular weight: 302.44

Appearance: Light yellow transparent solid

Product Capability

Gum rosin is a natural resin obtained by distillation from the liquid of sticky secretion. It's a transparent and brittle solid material. Colar from slight yellow to yellow red, a slight sheen in the surface. With incense resin odor. The quality of product in the process conforms to China national standard(GBB145-87)

Specification:

Color: Pale yellow

Appearance: Transparent solid

Softening Point (ball & ring): 76oC min

Unsaponifiable Material: 5% max

Alcohol Insoluble Material: 0.03% max

Acid Value mgKOH/g: 166 min

Ash: 0.02% max

USAGE:

In Adhesive Industry:

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 agent to make the rubber soft and easy for kneading, make the filling agent easily dispersed.

Package: Packing in galvanized steel drum, N. W: 225KG/drum

Stored:

Stored in a cool, ventilated, dry storehouse, far from fire, heat, and preventing it from sunlight exposure.

In ordert to prevent it becoming darker in color and performance changes, Rosin is best storage in block, because it is very sensitive in oxygen expecially when is in powder.