Water Damage
The often irreversible chemical and/or physical changes associated with an artwork’s materials after exposure to moisture, water, and/or steam. This is often visible as staining and tidelines and also causes structural concerns and mold.

Verso of an acrylic painting that had been submerged in water.
Water and plaster splashed across the face of a painting.
Canvas deformation due to water damage.

Water staining on the back of a panel.

Mold growth due to increased moisture.