We used everything on it starting with dry sanding, then mild stripper and finally SPP pads.
I will post some pics when in the office. The floor is Forbos Midnight Blue shade infamous for alkaline bloom when not maintained properly and for turning yellow as soon as it comes into contact with any stripper containing sodium metasilicate or with a pH greater than 9
We were only stripping the edges of the floor where it had built up and the walkway finish had worn away.