The Effects of Natural Paint on the Moisture Buffering Ability of Paper Plaster
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08 oct 2020
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Publicado en línea: 08 oct 2020
Páginas: 51 - 60
DOI: https://doi.org/10.2478/lpts-2020-0027
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© 2020 N. Nutt et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The scope of the Nordtest method is to evaluate the moisture buffer value (MBV) of materials exposed to indoor air. The test is intended to simulate daily variations with relative humidity (RH) between 75 % during 8 hours and 33 % during 16 hours.
The specimens follow a recipe that consists of waste paper, glue and water. Specimens made of paper plaster were covered with different colours.
The results of the experiment showed that the type of paint used and the number of layers applied affected the MBV. Natural colours have a better moisture permeability than chemical paints, but the number of natural colour layers affects the MBV. The higher the number of layers, the lower the MBV.