Unfilled PA6/66 Grades PIMAMID® PA6/66 COPA V26 LNPA6/66 Low Viscosity, Fast Cycle, High Surface Quality, Natural PIMAMID® PA6/66 COPA V32 LNPA6/66 Medium Viscosity, Impact and Flow Balanced, Natural PIMAMID® PA6/66 COPA V40 LNPA6/66 High Viscosity, High Impact Resistance, Natural