This walnut floor varnish from the Ronseal Diamond range can be applied to interior using a brush. The varnish dries in just 30 minutes and will cover up to 18 m² per litre on average. It provides hard protection from scratches and scuff marks. Ideal for areas of heavy foot traffic, this non-yellowing finish protects wood against scuffs, scratches, and spills. Easy to use, it dries in just 30 minutes.