Abietic acid glycerol ester

Abietic acid glycerol ester (CAS 8050-30-4), also known as glycerol ester of rosin or ester gum, is produced by reacting rosin-derived resin acids with glycerol to form a hard, pale resin.

Where is Abietic acid glycerol ester used?

• Adhesives: tackifier, emulsifier and rheology modifier in pressure-sensitive and hot-melt formulations, improving tack and peel strength
• Inks: binder resin in offset and flexographic printing inks, controlling viscosity and promoting pigment dispersion
• Coatings: incorporated into alkyd and lacquer systems to adjust film hardness and improve adhesion to difficult substrates
• Food-grade ester gum is approved as a weighting agent in citrus-flavored emulsions, keeping flavor oils stably dispersed in aqueous drink bases.

Good to know: Food-grade material is produced to FCC specifications and is the standard requirement for beverage and flavor emulsion applications. Technical grades are available for adhesive, ink, and industrial coating use, where color and purity tolerances are broader.