I'm nearly at the point of putting the main floor in my garage and was wondering on the best way to get a long lasting, dust free finish that won't absorb oil etc. i guess what I am after is the polished glass like look that you usually get in big DIY stores etc.

As it was an extension, the walls are already up so I can't get a big polishing machine in to do it all. The guy I had in for brickwork says it is best to keep troweling as it dries, however my uncle who used to be a building inspector many many years ago said this will make it very dusty.

I want to make sure I get it right first time, so if I need to add or do something special to the concrete before it sets then I'd rather know now!

I 100000% do NOT want to go down the floor paint route.