Hi
Was the floor sealed when it was it was laid? Lots of types of polish can be used as a type of seal also but unfortunately this only usually applies to linoleum, thermoplastc, terrazzo etc.
When it comes to wood and cork I would say seal it first as this will reinforce the surface.
However you can wax an unsealed wood floor, which will protect and polish. I recommend you seek the advice of express cleaning for suitable products.
Hope this helps
Fox