It is the slight yellow transparent solid, which is made from gum rosin through esterification with glycerol
and with the properties of high viscosity, excellent heat and aging stability, excellent polymer compatibility
etc. It is a good tackifying resin.
Specification:
Color (Gardner Grade with Toluene 1:1):5max
Color (Solid, Gardner): 7+ Max.
Softening point (Ring & Ball), ¿¬pC: 90¿¬+2
Acid value, (mgKOH/g), Max: 10
Solubility in Toluene (1:1): Clear
Rosin is a kind of oil tree rosin in the pine family, the main component is C19H29COOH. Divided into "fat rosin", "wood rosin" and "floating rosin" 3 kinds. It should be used in industry, flux, paper making, string Musical Instruments, etc.
Rosin is sold as a semi-transparent solid ranging in colour from yellow to black and has a faint odour of pine. The commercial grades range from A (the darkest) to K (yellow red), M (yellow brown) and N (deep yellow), through to superior WG ("Window Glass",yellow) and WW ("Water White", slight yellow). Rosin is brittle and easily crumbled at room temperature, but melts at around 100-120 C and is highly flammable.
Ester Gum is a glycerol ester of gum rosin with low odor and low acid value, especially applicable to chewing/bubble gum base, beverages and flavors. It is also used as a resin modifier for film formers, elastomers, and waxes, and in various adhesives, inks, and protective coating compositions where minimum odor is a requirement.
Rosin is a kind of oil tree rosin in the pine family, the main component is C19H29COOH. Divided into "fat rosin", "wood rosin" and "floating rosin" 3 kinds. It should be used in industry, flux, paper making, string Musical Instruments, etc.
It is made from fumaric resin through esterification with polyalcohol.
Features:
It cans soluble in alcoholic solvents; fast drying and high gloss. It also can be used for water-based inks.
Specifications
Color(gardner)(50%benzene solution)：8max
Softening point(r&b): 125-135oc
Acid value (mgkoh/g) 190-210
Forms and packaging
ò bag: beads or flake, kraft paper bag or plastic intertexture bag, 25kgs net each bag.
ò packing specified by customers
