recoating floating floor

I realise that floating timber floors are not the purest's cup of tea but has anyone tried recoating one? How do I tell what type of product was used on it initially? I have some planks left over to practise on.

entire floor area needs to be buffed back with a floor polisher with a screen back, then two pack water based polyurthane applied,

the coating will need to be brought from a trade shop that sells floor sanding suppiles.

Thanks for the reply. There are products on the DIY market that say they can be used for floating floors. Any thoughts about these?

Should I be testing the original coating to match it?