Laying vinyl flooring/ lino onto new concrete

I've just had a conservatory fitted with a concrete floor and want to put lino (or vinyl flooring whatever it's called) down. The flooring shop say it can go straight down and will get glued, but the floor is constantly dusty no matter how much I sweep it. Surely the glue won't stick. Does anyone know whether I need to do something to prepare the floor first?

Thanks for any suggestions.

hi rach,
your right, the floor must be dust free and the usual preparation would be a wash coat of 3mm latex screed.
I wouldn't use a traditional linoleum in a conservatory as it won't stand up to the extremes in temperature. Its safer to use an epoxy adhesive for any vinyl flooring for the same reason.

hi rach
to stop the dust use a mixture of pva and water. then just pour on the floor and sweep it around and this will seal the floor and stop the dust