The influence of multi-layered varnishes on moisture protection and vibrational properties of violin wood.

ABSTRACT: Violin varnishes are known to affect both moisture absorption and vibrational properties of violin wood. However, traditional multi-layered varnish systems suffer from substantial wear as a result of intensive use, which calls for deeper understanding of the specific impact of individual layers. Using sophisticated in-situ neutron imaging and vibrational modal analysis, we show how wood sorption and vibrational behavior of tonewood depend on the build-up of the varnish system. The results demonstrate the protective effect of complete coatings and emphasize that strongly worn regions cannot accomplish the function as an effective moisture barrier, which might pose a risk for frequently played or aged string instruments. Furthermore, the build-up of the varnish system affects the vibrational

SUBMITTER: Lammlein SL 

PROVIDER: S-EPMC6901594 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature