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Carbothane
Carbothane is a family of medical-grade polycarbonate-based aliphatic and aromatic polyurethanes.
What is Carbothane?
Carbothane® is a family of medical-grade polycarbonate-based aliphatic and aromatic polyurethanes. They do not yellow and have a higher relative degree of biostability than Tecoflex®. They are available over a wide range of durometers, colors and radiopacifiers, including barium sulfate and tungsten.
Carbothane is one of the six medical polyurethanes we extrude regularly. You can compare it with the other grades on our polyurethane tubing page, or send us your print and we will tell you whether Carbothane is the right fit for the tube you need.
Carbothane questions, answered
What is the melting point of Carbothane?
Typical melting points for Carbothane grades on our datasheet are 420°F (215°C) to 440°F (227°C).
What is the tensile strength of Carbothane?
Tensile strength at break for Carbothane runs 5,300 psi (36.5 MPa) to 8,500 psi (58.6 MPa), with elongation at break of 360% to 470%.
What is the density of Carbothane?
Carbothane has a specific gravity of 0.0415 lb./in.3 (1.15 g/cc), which corresponds to a density of about 1.15 g/cm³.
How hard is Carbothane?
On our datasheet, Carbothane grades measure Shore A 73 to 95 and Shore D 60 to 71.
How can Carbothane tubing be sterilized?
Depending on grade, Carbothane is compatible with ethylene oxide (EtO) and gamma radiation. Confirm the method for your specific grade with the resin supplier.
Does Microspec extrude Carbothane tubing?
Yes. We extrude Carbothane into custom medical tubing, including multi-lumen, bump and co-extruded designs. Send us your print or call 603.924.4300 for a quote.
Carbothane properties
| Property | Measure low | Measure high |
|---|---|---|
| Specific gravity | 0.0415 lb./in.3 (1.15 g/cc) | |
| Melting point | 420°F (215°C) | 440°F (227°C) |
| Glass transition temperature | Not applicable | |
| Tensile strength at break | 5,300 psi (36.5 MPa) | 8,500 psi (58.6 MPa) |
| Elongation at break | 360% | 470% |
| Hardness durometer (Shore A) | 73 | 95 |
| Hardness durometer (Shore D) | 60 | 71 |
| Water absorption @ 24 hours | Not available | |
This material datasheet is presented for reference only. Characteristics and performance may vary for a specific application and environment. Confirm material selection and suitability against your own requirements and the resin supplier's documentation.
Sterilization
- Ethylene oxide (EtO) Gamma radiation
Other polyurethane tubing we extrude.
Estane
Thermoplastic polyurethane (TPU)
Pellethane
Thermoplastic polyurethane elastomer
Tecoflex
Aliphatic polyether polyurethane
Tecothane
Aromatic polyurethane
Texin
Aromatic polyether-based TPU
Extruding Carbothane for your device?
Send us your specs, or just describe the problem. A member of our team will follow up personally to walk through tolerances, materials and schedule.
Start a project
Tell us about your part and our team will follow up personally.
Have full drawings and tolerances? Use our detailed request form.