The raw material for lime paint comes from the Silurian limestone layers of Saaremaa, which were formed approximately 460 million years ago. Stromatoporous limestone, found in local fields, is also collected to obtain the best quality lime. Limestone is quarried predominantly by hand, using traditional methods and tools. Different grades of stone are visually sorted during extraction based on their colour and properties.

Limestone is burned in a special traditional lime kiln, where the stone is heated to a temperature of approximately 1100–1300 °C using wood. During this process, limestone decomposes and quicklime is formed. After firing, the lime is allowed to cool slowly and then slaked with water, resulting in the formation of lime paste.

Slaked lime matures in storage pits for 1–2 years, during which time it reaches its best working properties. This long and natural maturation process gives the lime exceptional quality and ensures good coverage, breathability, and durability of the lime paint.

HA:IM lime paint is particularly suitable for the restoration of historic buildings, painting lime plasters, and all mineral surfaces where the natural breathability and traditional appearance of the materials are important. Thanks to its natural composition, lime paint is environmentally friendly and helps preserve the authentic appearance of buildings.