Craft
What limewash
actually is
It carries very little pigment, so the colour is always soft and never flat: you see the brush, the overlap and the wall underneath. It goes on in two or three thin coats, each one almost invisible wet and pale as it dries, and it keeps hardening for weeks as carbon dioxide turns the lime back into limestone. It is vapour open, which is why it belongs on solid brick, lime plaster, stone and old cob rather than on a sealed modern surface. It is also mildly caustic while wet, so gloves and goggles are not optional.


