Rosin ester [ESTER GUM] [PENSEL]

Tackifier, adhesive and chewing gum base

This is an ester resin derived from a natural resin, rosin. The resin has been used from long ago as a tackifier for adhesives.

Product lineups

ESTER GUM (Rosin ester, Hydrogenated rosin ester)

Product Type Appearance Color
(USDA)
Acid Value Softening Point
(℃, R&B)
Characteristics Use
AA-G Rosin ester Pale yellow flake WW or better 7 max. 82 min. Deodorized natural resin For chewing gum (Approved food additives by Ministry)
AA-L Good compatibility with natural/synthetic rubbers, EVA Hot melt adhesive, Oil varnish, Enamel, Lacquer Printing ink, Emulsion paint
AAV Hot melt adhesive, Pressure sensitive adhesive, Coating
HP Hydrogenated rosin ester M or better 20 max. 80 min.
H Pale yellow lump WG or better 10 max. 68 min.
HT Pale yellow balsam 13 max. (Gardner) 15 max. -
AT Rosin ester Yellowish brown balsam 15 max. (Gardner) 10 max. Viscosity (mPa・s)
20,000-40,000

PENSEL (Rosin ester, Stabilized rosin ester, Polymerized rosin ester)

Product Type Appearance Color
(USDA)
Acid Value Softening Point
(℃, R&B)
Characteristics Use
GA-90 Rosin ester Pale yellowish flake 5 max. (Gardner) 7 max. 87-93 Good oxidation resistance, Weather resistance, Heat resistance and good compatibility in EVA Pressure-sensitive adhesives.
Hot melt and acrylic adhesives
GA-100 10-20 100-106
GB-120 Stabilized rosin ester 7 max. (Gardner) 116-126
GA-85H Hydrogenated rosin ester Pale yellowish lump 10 max. 81-87
GA-AT Rosin ester Yellowish brown balsam 10 max. (Gardner) 15 max. Viscosity (mPa・s) 20,000-40,000 Good compatibility with natural & synthetic elastmers
KK Polymerized rosin ester Brown lump G or better 25 max. 165 min. Good heat resistance in EVA compound Acrylic adhesive Hot melt adhesive Printing ink
D-125 13 max. (Gardner) 16 max. 120-130
D-135 130-140
D-160 150-165
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