... temperature, aging, radiation, cold, heat,Acid, Chemical(3). Stand wear and tear, anti-sepsis, Soft, arc resistance, ... Permeability(5). Extended flexible life and reduced maintenanceDefects for silicone tubeNot suitable for use with concentrated acids and bases ... etcAny questions,please feel free to contact with me. flexible silicone hose with FDA,LFGB ROHS CERTIFICATE for industrial/medical