Paints, finishes and natural coatings
Choosing safe paints
...state of limestone.
When first applied it seems quite opaque, but will become richer in colour as it cures. Ochres and natural metal oxides are used to add colour. Rather than flaking like paint, colours tend to fade over time so it’s common to re-apply it every 5 years or so.
Limewash is commercially available, or...