An Antique Finish Sealer is designed to bond with a topcoat, so no sanding it. The sealer is used to protect the topcoat from any areas where you have sanded through the primer. Also, the sealer is to promote adhesion for the topcoat. It is an oil-based protective finish that gives wood a soft, hand-rubbed lustre. Its durable, easily maintained, and highly resistant to staining. Flooring sealer is a chemical solution that is applied to the surface of different types of floor covering materials to protect them against stains and damage. The Antique Finish Sealer is made available in various types.