high quality gum rosin price ww grade

Product Overview

Description

high quality gum rosin price

1.Description:

Gum Rosin, also called colophony or Greek pitch, is a solid form of resin obtained from pines and some other plants, mostly conifers, produced by heating fresh liquid resin to vaporize the volatile liquid terpenecomponents. It is semi-transparent and varies in color from yellow to black. At room temperature rosin is brittle, but it melts at stove-top temperatures. It chiefly consists of different resin acids, especially abietic

acid. 

2.Specification:

Grade	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),°C, 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

3.Application:

It is used in paper, ink, rubber, paints and varnish, various adhesives, glue, soap, synthetic resins, chewing gum and other chemical industries.

4.Package: 225kg/drum, 18MT/20FCL

 

5.Contact information: