Click for PDF
Technical Data Sheet
DuraStar™ Polymer MN621 Natural


Applications
  • Blood contact and dialysis
  • Fluid administration
  • Medical devices
Key Attributes
  • Chemical resistance to most medical solvents including lipids and IPA
  • Ease of processing
  • Gamma and E-beam color stability

Product Description
DuraStar™ Polymer MN621 has been tested for FDA/ISO 10993 and USP Class VI Biological Evaluation testing after Gamma and EtO sterilization. It contains a mold release to improve ejection. It has excellent appearance and is nearly water-clear. This resin is the toughest of the Durastar™ family of products. It processes easily and requires minimal drying time. It has superior toughness, high clarity and good chemical resistance.

Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
General Properties
Specific GravityD 7921.2
DensityISO 1183 1.19 g/cm3
Mold Shrinkage 
     Parallel to Flow, 3.2-mm (0.125-in.) thicknessD 9550.002-0.006 mm/mm (0.002-0.006 in./in.)
Mechanical Properties (ISO Method)
Tensile Stress @ YieldISO 52747 MPa
Tensile Stress @ BreakISO 52749 MPa
Elongation @ YieldISO 5274 %
Elongation @ BreakISO 527210 %
Flexural ModulusISO 1781750 MPa
Flexural StrengthISO 17864 MPa
Izod Impact Strength, Notched 
     @ 23°CISO 18029.6 kJ/m2
     @ -40°CISO 1806.3 kJ/m2
Impact Resistance (Puncture), Energy @ Max. Load 
     @ 23°CISO 6603-271 J
     @ -40°CISO 6603-255 J
Mechanical Properties
Tensile Stress @ YieldD 63846 MPa (6700 psi)
Tensile Stress @ BreakD 63853 MPa (7700 psi)
Elongation @ YieldD 6385 %
Elongation @ BreakD 638310 %
Flexural ModulusD 7901900 MPa (2.75 x 105 psi)
Flexural Yield StrengthD 79067 MPa (9700 psi)
Rockwell Hardness, R ScaleD 785105
Izod Impact Strength, Notched 
     @ 23°C (73°F)D 256370 J/m (7 ft·lbf/in.)
     @ -40°C (-40°F)D 25660 J/m (1.1 ft·lbf/in.)
Impact Strength, Unnotched 
     @ 23°C (73°F)D 4812NB
     @ -40°C (-40°F)D 4812NB
Impact Resistance (Puncture), Energy @ Max. Load 
     @ 23°C (73°F)D 376345 J (33 ft·lbf)
     @ -40°C (-40°F)D 376348 J (35 ft·lbf)
Optical Properties
HazeD 10030.3 %
Regular TransmittanceD 100389 %
Total TransmittanceD 100391 %
Thermal Properties (ISO Method)
Deflection Temperature 
     @ 0.455 MPa (66 psi)ISO 7573 °C
     @ 1.82 MPa (264 psi)ISO 7566 °C
Thermal Properties
Deflection Temperature 
     @ 0.455 MPa (66 psi)D 64873 °C (164 °F)
     @ 1.82 MPa (264 psi)D 64865 °C (149 °F)
Typical Processing Conditions
Drying Temperature 70 °C (160 °F)
Drying Time 3 hrs
Processing Melt Temperature 250-290 °C (480-550 °F)
Mold Temperature 15-30 °C (60-80 °F)

aUnless noted otherwise, all tests are run at 23°C (73°F) and 50% relative humidity.
bUnless noted otherwise, the test method is ASTM.
cUnits are in SI or US customary units.


Eastman Medical Disclaimer
It is the responsibility of the medical device manufacturer ("Manufacturer") to determine the suitability of all component parts and raw materials, including any Eastman product, used in its final product in order to ensure safety and compliance with requirements of the United States Food and Drug Administration (FDA) or other international regulatory agencies.

Eastman Chemical Company products have not been designed for nor are they promoted for end uses that would be categorized by either the United States FDA or by the International Standards Organization (ISO) as implant devices. Eastman products are not intended for use in the following applications: (1) in any bodily implant applications for greater than 30 days, based on FDA-Modified ISO-10993, Part 1 “Biological Evaluation of Medical Devices” tests (including any cosmetic, reconstructive or reproductive implant applications); (2) in any cardiac prosthetic device application, regardless of the length of time involved, including, without limitation, pacemaker leads and devices, artificial hearts, heart valves, intra-aortic balloons and control systems, and ventricular bypass assisted devices, or (3) as any critical component in any medical device that supports or sustains human life.

Eastman Chemical Company products offered for the medical market have met selected FDA-Modified ISO-10993, Part 1 “Biological Evaluation of Medical Devices” tests with human tissue contact time of 30 days or less. The tests include: cytotoxicity, sensitization, irritation or intracutaneous reactivity, systemic toxicity (acute), subchronic toxicity (sub-acute), implantation, hemocompatibility. The Manufacturer is responsible for the biological evaluation of the finished medical device.

The suitability of an Eastman Product in a given end-use environment is dependent upon various conditions including, without limitation, chemical compatibility, temperature, part design, sterilization method, residual stresses, and external loads. It is the responsibility of the Manufacturer to evaluate its final product under actual end-use requirements and to adequately advise and warn purchasers and users thereof.

Comments
Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.


Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.


1/21/2019 2:47:21 PM