Rosin by itself has low stability due to unsaturation. The utility of rosin resins can be improved via several chemical modifications. These modifications include esterification, hydrogenation, dimerization, functionalization, or any combination of these. Each of these modifications is discussed in the category links below. Since there are so many ways in which to modify rosin; coupled with the fact that there are three distinct sources for the base rosin, make rosin resin product lines difficult to comprehend.

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