Lime Wash - is product which imparts a soft milky effect to the timber. If is often applied to Blackbutt and White Oak. It enhances grain and texture of interior woodwork. 
Lime wash transforms and protects all bare wood. It gives a soft wash of colour and natural finish that allows the beauty of the wood grain to show through. 
From experience most common timber our client wish to lime wash is cypress pine, but due to oils in cypress pine timber, white lime wash reacts with the oils and turns green or yellow. Therefore we are very limited to what can be done. We can use white pigments with oil combination, or we can paint the floor with white floor paint, but the floor will loose it's natural timber look, it will became white painted floor. 
Timber floors have to be sanded to expose clean bare timber free from paint, dirt, grease, oil and previous coating.