We've talked to two refinishers who have recommended something call Syntech Coat (or something like that). Both say it is the best, but I can't find anything about it or how we would take care of it. Each refinisher wants to put down two coats. Is that enough? How durable is this product?

Check this URL...

http://www.coatingsadvisor.com/listings31.html

Once there you can scroll on the right to find all kinds of coatings, but floorcoatings will be right on that page.