Oxford Navy is an inky, traditional navy blue Chalk Paint® color which evokes the strong, august blue of academic insignia and fountain pens, as well as the rich pigment indigo blue so synonymous with traditional Indian block printing. Technical information 250ml is enough to cover approximately 25 square ft. 500ml is enough to cover approximately 70 square ft. 1 litre is enough to cover approximately 140 square ft. Porous surfaces such as brick may also require additional coats. This should be factored in when considering your quantity. Please be reminded that Chalk Paint® requires a protective coat of either Wax or Lacquer, sold separately. On floors and outdoor furniture, seal with Chalk Paint® Lacquer.