How to stop screed floor paint getting marked?

I’m having an issue with the floor in my cafe.

It’s a screed floor, which has been down for 12 months. The landlords decorator then applied Polycote Flortex PU Twin Pack before 2 coats of Armstead TR floor paint. As we are currently closed due to Covid-19, we decided to paint over this (the original paint colour was too light, a nightmare to keep clean). We applied 2 coats of https://www.ebay.co.uk/itm/151438085297 , with 5 days between each coat plus another 5 days before we moved any furniture. Whenever we move anything along the floor, it marks the paint. Is there anything I can do to help with this issue?
Thanks

Reply from 1 tradesperson

the prep was probably not done right after the paint has been put on the floor was the prep done properly was the floor checked for damp? use a Concrete sealant on top after paint

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