Floor Coatings Questions

My shop just has the clear sealer on the concrete, that you roll on with a roller. It's hard to tell it's there these days because the shop was built in 2007. Plus it's full...lol. Downside to that type sealer is that if you spill gas on it, or lacquer thinner, it eats the sealer and makes a sticky spot.
Well that sucks!
I had almost decided on just sealer.