Cathedral Communications Limited
High Street, Tisbury, Wiltshire SP3 6HA
The United Kingdom
The use of Limewash as a decorative and protective coating. Essentially, limewash is a mixture of slaked lime (calcium hydroxide) in water which sets slowly by absorbing carbon dioxide from the air. The chemical reaction which occurs produces crystals of calcite (calcium carbonate). These crystals are unusual in that they have a dual refractive index; light entering each crystal is reflected back in duplicate. This results in the wonderful surface glow that is characteristic of limewashed surfaces, and is not found in other decorative finishes.