DG90VS Rosin ester Rit-Chem Tackifier >> Rosin ester ADHESIVE >> Hot-melt >> Pressure sensitive (HMPSA) ADHESIVE >> Solvent based >> Pressure sensitive (PSA) Rosin ester for use in hot melt and solvent-based pressure sensitive adhesive applications. Rosin ester. Used as a tackifier in hot melt and solvent-based pressure sensitive adhesive applications.