Gum Rosin

OTHER NAME: Rosin

DESCRIPTION

Rosin is a natural resin. The raw material of rosin comes from the renewable pine forest resource – rosin in pine trees. From the chemical composition of rosin, it is a solution of resin acid dissolved in terpenes. After the rosin is distilled, a certain fraction is taken to obtain rosin.

Classified according to the production process, the currently mainstream rosins produced in China are: steam-based resin rosin; According to the source of raw materials, the currently mainstream rosin produced in China is: gum rosin. Among them, the sources of rosin are divided into: masson pine rosin, wetland pine rosin, and simao pine rosin.

Features

Ø It has light color, high acid value, easy oxidation, low softening point, good pressure sensitivity and good low temperature resistance.

Ø Soluble in ethanol, ether, acetone, toluene, carbon disulfide, dichloroethane, turpentine, petroleum ether, gasoline, oils and alkali solutions. Solubility in gasoline is reduced. Insoluble in cold water, slightly soluble in hot water.

Technical Parameter

MODEL	Gum Rosin X	Gum Rosin WW
Color (Gardner)	≤ 6#	≤ 8#
Softening Point (R&B, °C)	≥ 76	≥ 76
Acid Value (mgKOH/g)	≥ 166.0	≥ 166.0
Ash content，%	≤ 0.02	≤ 0.02
Unsaponifiable matter，%	≤ 5.0	≤5.0
Ethanol insoluble matter，%	≤ 0.03	≤ 0.03

Applications

Ø application industries: papermaking, coatings, inks, adhesives, rubber, electronic appliances, organic synthesis, resin modification and deep processing and other industries.

Packaging

Packaged in galvanized iron drums, net weight of 225 kg/drum. Or packed in compound kraft paper bag, net weight 25kg/piece.

Storage & Transportation

It should be stored in a cool place, avoid high temperature, and should not be stored near fire.

It cannot be stored and transported together with spontaneous combustibles, strong oxidizers, and strong acids, and should be handled according to the regulations for flammable materials.