ROYALTUF® 372P20 polymer modifier by SI Group is a chemically modified EPDM grade. It is compatible with polymers such as SAN, polycarbonate, polyester/polycarbonate alloys... view more

ROYALTUF® 485 impact modifier by SI Group is a semi-crystalline backbone which imparts good impact properties in polyamides at temperatures down to -30°C. This rubbery modifier provides improved... view more

ROYALTUF® 498 impact modifier by SI Group is a chemically modified EPDM. It is an amorphous backbone imparting highest impact properties in polyamides at temperatures down to -40°C. It provides... view more