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nature : rosin ester on the coating film. There are two types of rosin ester : (1) rosin acid and glycerin as polyols, such as pentaerythritol reaction of the rosin polyol ester; (2) Rosin and Shun butadiene anhydride addition, polyols with the reaction of maleic anhydride rosin esters. Both of proportion with the different variety of hot dry oil refining, dubbed by adding different solvent properties of coatings. Paint joined driers after varnish made by adding pigment can be dubbed in various paint. Mainly used for the coating of wood, steel surface, windows, furniture.
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