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Gum rosin WW Grade – China ← Products

Neostat LTD supplies Chinese gum rosin, WW grade.

Gum rosin is an amorphous, glassy, brittle substance. The color scheme is usually from light yellow to dark red. Gum rosin is a processing product of pine pitch and is a blend of resin acids of total formula C20 H30O2.

Scope of application:

  • paint and varnish industry;
  • pulp-and-paper industry;
  • production of synthetic rubber;
  • production of tire and rubber products;
  • production of plastics, artificial leather, linoleum and soaps.

Physical and chemical properties:

 
Properties

X

WW

WG

N

M

K

Color intensity

Slightly yellow

Pale yellow

Yellow

Deep yellow

Yellow brown

Yello red

Appearance

Transparent

Softening point, оС, minimum

76

75

74

Acid number, mg КОН per 1 g of product, minimum

166

165

164

Content of unsaponifiables, wt.%, maximum

5

5

6

Ash content, wt.%, maximum

0.02

0.03

0.04

Form

Solid

Solubility

Slight in water. Gum rosin dissolves in most aliphatic and aromatic solvents, in halogenated hydrocarbons, ethers and ketones.

Smell

Faint odour

Packing:

Tinned drums (225 kg)

Transportation:

Road and railway transport

Guaranteed storage period:

2 years from the manufacturing date

Storage conditions:

Store in covered warehouses or in an open area under a shed; away from heat and open flame.