GUM ROSIN

Natural Gum Rosin WW Grade Colophony Pine Rosin

 

Product Name

Colophony, Pine rosin, Pinus Masoniana Rosin, Pinus Elliottii 

 

Type

WW Grade 

 

Chemical Properties

Gum rosin is the transparent light yellow or transparent yellow solid .It is made from pine tree.

It is a kind of natural resin, mainly composed of various kinds of resin acids; it can be dissolved easily in many organic solvents, and has special chemical activity.

Gum rosin also called colophony or Greek pitch, is a solid form of resin obtained from pines and some other plants, mostly from conifers. It is produced by heating fresh liquid resin to vaporize the volatile liquid terpene components. It is semi-transparent and varies in color from yellow to black.

 

Specifications

Test Items

Super Grade X

 1st Grade WW

 2nd Grade WG

Appearance & Color

Transparent light yellow

 Transparent yellow

Softening Point (R&B)℃

≥76

 ≥76

 ≥76

Acid value.(mg KOH/g)

 ≥165

≥165

≥164

Unsop.matter(%)

 ≤8.0

 ≤8.0

 ≤8.0

Alcohol Insol.Sustance(%)

≤0.03

 ≤0.03

 ≤0.03

Ash(%)

 ≤0.02

≤0.02

≤0.02

 

Application

·       Used as a binder component of adhesive, includes rubber based adhesive, synthetic resin based adhesive and plant base adhesives.

·       Used for paper sizing, improving the strength and smoothness, increasing wear resistance.

·       Used for thermoplastic coating, such like road marking.

·       Used as vehicle body and enhancing the adhesion in ink industry.

·       As film forming material for controlled-release fertilizers.