Understanding Paint Retardant for Acrylics

here's a pretty cool product is a retardant so if you're doing any type of a brushing and rolling of furniture and you want to use uh rener products the retardant slows down you know the dry time gives it uh the product the ability to flow and level like a brushable paint so right out of the can stuff dries really fast it's not as friendly you know brushing and rolling but if you add a retardant in there now you can brush and roll it and get brushed on results that look like a sprayed finish