11/05/2026
Why remove varnish and clean the surface of an old painting? 🖼️
Over time, paintings naturally accumulate layers of surface dirt, dust, soot, and airborne pollutants. This often dulls colours, flattens contrast, and obscures the artist’s original detail.
In fine art conservation, surface cleaning is usually one of the first step. Using carefully controlled methods, conservators remove loose dirt and grime to reveal a clearer image beneath. Varnish removal may then follow, carried out gradually with tailored solvents to safely reduce or remove degraded layers without affecting the original paint.
This process requires a balance of scientific testing and practical skill. Every painting responds differently, so cleaning systems are adjusted in real time to ensure the original surface is preserved.
The aim isn’t to make a painting look “new,” but to recover its depth, colour, and legibility bringing it closer to how it was intended to be seen.
Have you ever been surprised by how much brighter a painting can become after cleaning?