Southern pine was treated with CCA, CCB, sodium borax/boric acid, or disodiumoctaborate, alone or in combination with an acrylic polymer system containing a water repellent. Treated samples were subjected to an unsterile soil burial test. The addition of polymer reduced the weight loss in borontreated samples at the lower retentions but not at the higher retention. Results with borates indicate that polymers may improve performance in above-ground applications. Polymer treatments improved the performance of CCA and CCB at retentions below threshold, indicating the potential for modifying CCA/CCB formulations.

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