Latex is applied to the back of the carpet. Most secondary backing today is woven polypropylene, such as Propex's Action Bac ®, which is a backing made of a.
Most carpets are tufted or punched through one backing with a series of needles. Most backings are a web or weave of plastic and have such names as “ Action Bac”. Back in the days when SEARS sold carpet they were famous for selling.
I drop the carpet into the glue and pull it back out to help it flash off faster. Also this in It doesn't last any longer in these apts than action back.