One more quick question. The crawlspace is very close to my laundry
room (it's a weird layout of a house ... hard to explain without
pictures). Would a sealer be a good idea in the laundry room too? I
know I've seen laundry room floors painted before so I'm assuming
that's fine, but what about the sealer? What exactly is the difference
between sealer vs paint? Is sealer just clear paint?

Thanks,
Harry