- Elka Oiled Finish Protector contains a blend of oils, formulated to care for and maintain your real wood floors. This product can be used to refinish previously treated oiled floors. Elka Oiled Finish Protector will help maintain the seal and finish of your oiled finished wood floor. Use regularly to keep your floor in good condition. Note only for use on Real Wood Oil finished Floors – NOT for Lacquer finished floors.