1) Type of paint based on lime 
(or whitewash) is a type of paint based on lime.
Limewash is an ancient treatment used for brickwork, plaster and stonework. In its simplest form limewash consists of newly slaked lime mixed with water. The limewash is often tinted with lime blue so that the resulting opaque finish is a cleaner white. Limewash prevents mould and lichen growths, and is cheap and easy to apply, but needs to be rene...