PER 115S Pentaerythrite ester of modified gum rosin Wuzhou Sun Shine Tackifier >> Rosin ester >> Penthaerythritol (penta) ester ADHESIVE Pentaerythrite Ester of Modified Gum Rosin PER-115S Pentaerythrite ester of modified gum rosin are made from gum rosin or refined gum rosin through esterification with pentaerythitol and resin additive; has the character of light color, high softening point, superior heat stability and weather resistance,has widely used in the production of adhesives. Pentaerythrite ester of modified gum rosin. Used as a tackifier in adhesives. Possesses light color, high softening point, very good heat stability and weather resistance.