Non-Hydraulic Lime or Lime Putty Quicklime is the raw material in the production of lime putty. This is added to water and a chemical reaction occurs which is termed as slaking. The resulting mixture is sieved and left to mature for at least 3 months. During this time the liquid slaked lime thickens pure white in colour and is called lime putty.

Lime putty based products harden by absorbing carbon dioxide from the air to revert back to calcium carbonate (carbonation).

Mortar Course sand is mixed with lime putty to produce a mortar suitable for rendering and pointing.

Fine skim This is a topcoat plaster, which is made with fine sand.

Lime Wash Lime wash is made by diluting lime putty with water to create a wash. Adding suitable pigments produces many different colours.

Haired Lime Plaster To achieve greater tensile strength in plaster hair is added to the mix. This is particularly important when plastering onto laths and is quite usual for any internal plastering onto a solid background.