This document specifies a natural weathering test for exterior wood coating systems mainly intended for decoration and protection of planed and sawn wood. The test provides a means of evaluating the performance of a wood coating system during outdoor exposure. It forms the basis for the performance specification in accordance with EN 927-2. It also facilitates the comparison of coating systems performance on different substrates including the wood species@ or other wood modifications.
PREN 927-3-2018 history
2018PREN 927-3-2018 Paints and varnishes - Coating materials and coating systems for exterior wood - Part 3: Natural weathering test