I would use a heavy duty paint.
I need to know what type of floor you want to paint? Wood,Concrete or?
Is this for a garage? If so- There are generally two types to choose from – latex acrylic paint for concretefloors and pre-mixed 1-Part epoxy garage floor paint. Hands down, your best choice between the two is the 1-Part epoxy paint.
Need to know what floor and what it is made of.
I've been pretty impressed with valspar floor and porch paint. Proper prep is more important than paint type though. So clean is thoroughly and use a deglosser if it's vinyl flooring. Prime it with a strong primer, like zinsser BIN.
I agree with Emy. my hubby did our daughters floors a few weeks ago with valspar. They look great!! Her floors were wood and beyond refinishing