Original Burmese teak block floors in the National Portrait Gallery have been protected and finished with Bona Traffic from BonaKemi.

Michael New, facilities manager at the Grade 1 listed building, said the colour of the teak floors, which have been sanded back and finished with water-based Traffic lacquer, looked superb and completely natural.

He added: “Traffic also gives us the required durability to protect the floors from the wear caused by 1.5 million visitors who come into the gallery each year.”

The specification of a water-based product also avoids health and safety issues and potential damage to exhibits which could be caused by solvent-based products.