Glycerol ester of wood rosin

Glycerol Ester of Wood Rosin (CAS 8050-30-4), also known as Poly-pale Ester or Poly-pale Ester Gum, is a resinous material produced by esterifying wood rosin with glycerol. It is commercially available under several trade names and is recognised in food and industrial applications across European and global markets.

In beverage emulsions, it functions as a density-adjusting agent, keeping flavour oil droplets suspended uniformly in citrus drinks by matching the specific gravity of the oil phase to the aqueous phase. In hot-melt adhesives and pressure-sensitive formulations, it acts as a tackifier resin, increasing tack and peel strength by modifying the rheological profile of the polymer matrix.

Glycerol Ester of Wood Rosin is supplied in solid flake or block form and is available in food-grade quality meeting FCC specifications. It falls under REACH registration requirements for EU supply. Buyers should confirm grade suitability against application-specific standards prior to procurement.