Glycerol Maleic Rosin Esters is a hard, thermoplastic pale yellow coloured rosin ester. It is compatible with various solvents including coal tar oil, ester, vegetable oil and turpentine oil. It is used for surface coatings and primers to improve the gloss, hardness, drying speed, abrasion resistance and yellow resistance. Rosin modified maleic anhydride resin has the advantages of stable lustre, good heat stability and strong adhesive power.
Glycerol Maleic Rosin Esters is made by esterification of glycerol with rosin and maleic anhydrite. During the reaction, anti-oxidant and optical stabilizers are also added.
Paint and Coating Industry
Glycerol Maleic Rosin Esters is used in product lacquer furniture, varnish, hammer finish, metallic paint and ink. It is highly durable, has high-speed drying property and has good rigidity. Hence, it improves the polishing performance and thick film effect of primer and surface paint. These resins can improve hardness of paint films and gloss property for polyesters, nitro and PU paints. They are even used as are used as adhesive or binder for thermosol and road marking paints.
Glycerol Maleic Rosin Esters are used as binding adhesives. These esters have strong binding property and are thus used in footwear and leather industry, packaging tapes, labels etc.