The Kitchen Cabinet Refinish Masters is a San Francisco Kitchen Cabinet Refinishing Company offering Conversion Varnish for your Bay Area Kitchen Cabinets. Call 510-880-1048 to Schedule an Appointment. Conversion Varnish is one of the BEST FINISHES that can be applied to Wood. Conversion varnish (CV) is a type of lacquer that includes a hardening agent. It’s often applied to cabinetry and wood surfaces for its durable protection and clear, smooth finish.