Use Class Summary

The eventual end use of preservative treated timber is classified into one of 5 main categories. These Use Classes, defined in EN 335, are based on the potential threat to the timber from decay or insect attack its eventual application.

For more information see the downloadable document.

Latest News:May 6th 2021

TANASOTE – innovative wood preservation for heavy duty industrial timbers

TANASOTE S40, Lonza Wood Protection’s new oil based wood preservative, has gained Biocidal Products Regulation (BPR) authorisation.