Pressure treatment of wood with emulsifiable preservative systems

Southern pine (Pinus spp.) veneer peeler cores were treated with two new water-dispersible preservative formulations based on pentachlorophenol (PWD) and zinc naphthenate (ZWD). The Lowry empty-cell process was chosen for comparison with the Bethell full-cell process. Results indicated that either system could be used with conventional treating-plant equipment and procedures. Heating the ZWD preservative during treatment did not significantly improve treatment.

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