As dew and soil moisture brought to the surface by capillarity evaporate, their dissolved minerals are deposited on the surface; studies indicate that the varnish materials generally are extracted from the surrounding rock and earth material.
Paint and varnish materials prepared on the basis of epoxy resin differ also in alkaline resistance.
This work aims to study the techniques, pigments, binding media and varnish materials from fragments collected as part of conservation work carried out by CACH on the outside Gallery.
The results obtained from the multi-analytical approach (Visible, Infrared and Fluorescence Imaging, X-ray fluorescence, micro-Raman, Py GC MS and GC/MS) of the painting "The Plague of Lucca" give information about the artist's palette, reveals the presence of a few retouching and the nature of the support, the binder and varnish materials.
With a travel mouse that is actually an issue — who knows whether those other mice will track on a particular varnish or material?
Varnish, liquid coating material containing a resin that dries to a hard transparent film.
Rosin is used in the production of varnish and coating materials.
The thermal control materials investigated herein include different kind of second-surface mirrors, white anodizing, white paints, black paints, multilayer insulation materials, varnish coated aluminized polyimide, germanium coated polyimide, polyether ether ketone (PEEK) and poly tetra fluoro ethylene (PTFE).
In the past a sealing material or varnish containing drying oil (maybe tung oil) and pine resin was applied to the surface to protect the paintings.
Using mastic varnish as a target material, it was possible to rank the degree of environmental aggressiveness of the exhibition and storage areas of the two museums and suggest that light incidence (and possibly airbourne pollutants) is the main ageing factor, at least as far as organic materials are concerned.
This has implications for the safe handling of works of art during conservation and also the preservation of original material if varnishes are to be removed.
