How To Keep A Paint Roller Fresh Between Coats
It takes around 4 hours for a coat of paint to dry and in that time, paint rollers will dry out too. An easy way to keep rollers fresh between coats, or when there’s any delay to continuing the job, is to use cling wrap.
Cut off a good sized piece of cling wrap and lay it down flat on a hard surface. Then place the paint roller at one end of the plastic and roll it forward. The plastic should wrap around the roller. Another method is to wind the cling wrap manually around the roller.