Seper ester E-730-55 Rosin ester Arakawa Chemical Tackifier >> Rosin ester SEPER ESTER E-730-55 White emulsion Rosin ester emulsion Excellent adhesion strength Good compatibility with various latexes or emulsions Rosin ester emulsion. Used as a tackifier. Offers very good adhesion strength and compatibility with various latexes or emulsions.