Don't trust your exterior wood doors, furniture and trim to anything but the best... Man O'War Spar Marine Varnish. Use on: Ideal for expensive mahogany, etc., Exterior wood entry doors, Wood garage doors, Entry ways, Wood shutters, Wood hand rails, Wood outdoor furniture, Interior window sills & frames, Planters, Lamp posts, Wood trim on boats (above water line), Wood projects (birdhouses, mailboxes, etc.)