Hi Mick,
Avoid acids, harsh alkaline powders, oily compounds, soap and disinfectants.
If a seal is required it should be one of the water based acrylic polymer resin types.
Maintenance is carried out with a nuetral detergent together with mopping equipment or a floor polishing/scrubbing machine, preferably with vacuum, you should ensure that only the nylon web type pads are used to avoid damaging the floor.
Regards,
Rob