Tygon tubing is widely used in microfluidics, thanks to its high quality and the number of formulations available. While some are most suited for peristaltic pumping, others are resistant to harsh chemicals or certified for biopharmaceutical applications. In the below table, we have listed the hardness of the most common Tygon formulations. For reference, the hardness of a silicone tube is approx. 54, while the hardness of the PTFE tube is approx. 95.
| Formulation | Hardness Shore A, 15s |
| Tygon LMT-55 | 55 |
| Tygon E-LFL | 56 |
| Tygon E-3603 (E-Lab) | 56 |
| Tygon R-3603 | 56 |
| Tygon XL-60 | 60 |
| Tygon A-60-F | 61 |
| Tygon A-60-G | 61 |
| PharMed BPT | 64 |
| Tygon B-44-4X | 66 |
| Viton | 70 |
| Tygon 2375 | 75 |
| Tygon ND 100-80 | 80 |
