An organic solvent based copper linoleate (Culin) has proved itself as an effective wood preservative in long term field trials in South Africa over a period of 30 years. Whilst the organic solvent based product offers good wood preservative performance, primary industrial interest has been in an emulsified version of the product. The objective of this study was to evaluate the influence of two different emulsifiers on the performance of emulsified versions of Culin against subterranean termites under accelerated field test conditions. The results indicated that the emulsions offered levels of protection that did not differ significantly from that of the original Culin formulation and CCA at equivalent copper retentions. However, variations in the performance of the products in the test indicated that the choice of emulsifier could influence the predictability of the products in the field.

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