Ian and I are taking over an existing 5 screen theatre which has cement floors. As you can imagine, after 10 years of operation they could use some serious cleaning. Has anyone tried steam cleaning of aud. cement floors? Does it work? Can it be done without removing the seats (something I don't want to do)? What other methods have you used that have succeeded?

Now on to the paint question. Any preferences or suggestions about deck paint? I'm wondering about black, but will we be able to find the spilled Coke? Previous tenant painted the floors a reddish/rust color that has mostly worn off. Auditorium walls are mostly blueish/greenish walls with gray fabric seats with black plastic backs. I thought black deck paint wouldn't show if they got it on the seat footings. Also, if you have particularily good or bad luck with a specific brand, I'd like to know.

Thanks for your help.
 

If you plan to paint, use a oil based enamel. The enamel makes it much more resistant to coke spills and easier to mop up. Don't use a latex, it will just wear off. If I were you, I'd stick with the same color, or try and match your wall fabric. Black will just make the theatre look small.......and give your regular janitor an excuse not to mop the floor every night!