Maleic modified rosin resin is made in the light yellow transparent solid from gum rosin with addition of maleic anhydride, and esterified with glycerol or pentaerythritol. It is differed as 422 for the glyceride and 424 for the pentaerythritol ester.

Performance: Completely soluble in tars, lipids, vegetable oil, turpentine, but dissolvable in alcohol. This product has the advantages of color stable, fast dry, hard, bright, non-yellowing, good thermal stability and strong adhesion and so on.

 

Model        Color No.         Acid Value       Softening℃    Solubility

                                         ( mg KOH/g )

422-4             ≤4                    ≤30                   ≥128             Clear

422-8            ≤8                    ≤30                   ≥128              Clear    

424-10          ≤10                 ≤30                   ≥120              Clear    

 

Note: The technical specifications can be tailor-made in accordance with customer requirements

Main use: Maleic acid is widely used in polyester resins, nitro and polyurethane paint. It can improve the hardness, light brightness, fullness, and smoothness of the coating and shorten the drying time.

Packing: 25kg-paper-plastic woven bags packed in granular or flake.