Hey Russ, I don't know for sure but perhaps this guy was referring to cleaning and polishing hardwood floors? There is a "dustless" method of prepping or lightly etching the floor finish to make the new thin coats of poly adhere to the wood floor. There is a special screen used for this type of refinishing. There are youtube videos made by several chemical manufactures demonstrating the process, Bridgepoint, Ultra Chem Labs to name a few. Some use a red pad, some use a screen. Which one to use depends on the condition of the current floor finish, what the customer wants, and ultimately how much are they willing to pay you to do the job; quick and simple vs quality and longevity. I think the majority of cleaners are doing a deep cleaning of all the store bought do it yourself wood floor products that seem to build up of time and dull the finish. Once that's removed, in most cases, a nice quick buffing with a cotton pad brings back the nice shine most homeowners are looking for. Some might put a single layer of water based poly and then buff, but I'm not positive. Harper used to do a lot of hardwood cleaning and polishing and he posted pictures of his work. Not sure if they are still viewable now or not. Said it was easy work, good money and customers got the immediate gratification so many customers are looking for when they get nice shiney floor again. Bridgepoint has an educational dvd for the process. I had one and don't know where it went after my move. It was pretty good. Contact Scott Warrington, he could probably get you a copy. The guy you were talking to is correct... Your 175 can do a lot more for you than just strip and recoats of vct. Sorry for 1 giant paragraph.. my enter key won't work. Check out the web.. lots of good stuff to get you started. Then you can come back here and ask specific questions. Lots of guys here do it. Good Luck!