https://www.avient.com/resource-center/knowledge-base/article/injection-molding-mold-processing
Feed small amounts of parts into the grinder at one time to minimize heat buildup, which can lead to agglomeration.
For SBS formulations, if a machine is to be left at temperature longer than one hour, purge it with LDPE or polystyrene before shut down.
The injection time to fill the part should be between one and two seconds.