ABSTRACT
The present study is a part of the EUREKA project EU 455 PROWOOD, a research programme conducted by the Norwegian paint company Jotun A/S. and financed by The Norwegian Research Council and Jotun A/S. The project aims to develop, test and assess new environmentally friendly wood protection systems.
This presentation includes the results of the study conducted by the Norwegian Institute for Air Research. The field tests have been carried out at five test sites in three different countries with 21 different paint systems. A comprehensive environmental programme has been carried out at the test sites during the test period and the one year samples of the paint systems differ both in the performance at each site and between the test sites. The evaluation criteria used follow the available ASTM standards and the results can therefore also be compared to the results from the ongoing ECE ICP material project which use the same methods at 39 test sites in Europe and North America.
In this publication the results from four of the wood treatment systems are presented. The systems are copper-fatty acid formulation with alkyd/acrylic opaque paint 2, top coat copper-fatty acid formulation with solvent borne opaque paint, water borne primer system with alkyd/acrylic opaque paint 2 top coat, water borne primer system with solvent borne opaque paint top coat. After one year of exposure indications are observed showing that water borne primer system is a better primer than copper-fatty acid formulation, and that the performance of solvent borne opaque paint top coat are better than alkyd/acrylic opaque paint 2 for most of the evaluation criteria used.
