The problems

Watercolours and works of art on paper are prone to a variety of problems, often the result of bad framing and storage. Many items have been stuck to acidic boards with self-adhesive tapes, or pinned into frames with highly acidic wooden backs. The acid gradually migrates into the paper, burning and degrading the fibres.
Deterioration can also be caused by poor storage and environmental hazards such as extremes of light, insect damage and fly spots. High humidity encourages mould growth and brown ‘foxing’ spots.
Careless handling and accidental damage can result in tears, creases and dirty smudges. More serious damage can be caused by burst water pipes, flooding, fire and smoke.

The treatment

Fortunately, it is rare that an object has degraded beyond treatment. Most problems can be stabilised, extending the life and improving the appearance of the item.
De-acidification prevents further acid attack. Mould growth can be destroyed and dry and aqueous cleaning will improve staining and spots. Holes and tears can be repaired with matching papers from a large stock, including antique and Japanese papers. Re-sizing and, if necessary, lining will also strengthen and support damaged paper and fractures.

Conservation mounting and framing ensure that, once preserved, and object can be displayed safely.
An acid-free mount and backboard provide a buffered support. Where an item is vulnerable to light, an ultra-violet filter can be incorporated. Spacers behind the frame ensure air circulation and prevent condensation between frame and wall.