At a glance
Ratings at 20 °C.
- Rated A, very good resistance
- PTFE, PVDF, Viton (FPM), NBR, SS 316, SS 304, Aluminium, FEP, ECTFE/ETFE, Nylon (PA), Acetal (POM), Polysulfone, PETG, SAN (14)
- Rated B, good resistance
- HDPE, PP, PVC Rigid, Polycarbonate (4)
- Rated C, limited resistance
- PMP (1)
- Rated D, not resistant
- EPDM, LDPE, PVC Flexible, Polystyrene (4)
- No data in the source
- Silicone
- Rated lower at 50 °C than at 20 °C
- HDPE (B → C), PP (B → C), PVC Rigid (B → D), Polysulfone (A → B), PMP (C → D)
Rating profile by material family
Effect of temperature, 20 °C to 50 °C
Substance
- CAS number
- 110-54-3
- Formula
- C6H14
- Hazard symbols in the source
- F (flammable), Xn (harmful) (pre-GHS European symbols; check the current safety data sheet)
- Flammable
- yes
- Name in the source (German)
- Hexan, n-
Resistance table
| Material | 20 °C | 50 °C | Remark |
|---|---|---|---|
| Thermoplastics | |||
| HDPE | B | C | |
| LDPE | D | D | |
| PP | B | C | |
| PVC Rigid | B | D | |
| PVC Flexible | D | D | |
| PMP | C | D | |
| Polystyrene | D | D | |
| SAN | A | A | |
| Polycarbonate | B* | – | |
| PETG | A | – | |
| Acetal (POM) | A | A | |
| Nylon (PA) | A | – | |
| Polysulfone | A | B | |
| Fluoropolymers | |||
| PTFE | A | A | |
| FEP | A | A | |
| PVDF | A | A | |
| ECTFE/ETFE | A | A | |
| Elastomers | |||
| EPDM | D | D | |
| Viton (FPM) | A | A | |
| NBR | A | A | |
| Metals | |||
| SS 316 | A | A | |
| SS 304 | A | A | |
| Aluminium | A | A | |
* estimated rating, given in the source without a temperature
Not rated in the source, so not in the table: Silicone
Rating scale
- A very good resistance
- B good resistance
- C limited resistance
- D not resistant
- – no data
- K no general statement possible
A rating marked * is an estimate in the source, not a test result. An estimate is given as one value without a temperature.
Frequently Asked Questions
Which materials resist n-Hexane at high concentrations?
The materials with an A rating (resistant) for n-Hexane at 20 °C are: PTFE, PVDF, Viton (FPM), NBR, SS 316, SS 304, Aluminium, FEP. These can generally be used in direct contact.
Which materials should be avoided with n-Hexane?
Materials rated D (not resistant) for n-Hexane are: EPDM, LDPE, PVC Flexible, Polystyrene. These should not be used in contact with n-Hexane.
Does temperature affect chemical resistance to n-Hexane?
Yes. 5 of 20 tested materials show a worse rating at 50 °C than at 20 °C for n-Hexane. Materials affected include: HDPE, PP, PVC Rigid, Polysulfone, PMP.
Is PTFE safe for n-Hexane?
PTFE is rated A for n-Hexane at 20 °C. A rating of A means resistant, B means limited resistance, C means partly resistant, and D means not resistant.
About this data
The ratings come from the chemical resistance list published by Bürkle GmbH, which compiled them from raw-material manufacturers’ data. They describe laboratory tests on the raw material at 20 °C and 50 °C.
A finished part also sees pressure, mechanical stress, welds and mixtures that a laboratory test does not. Treat the rating as a first filter and test under your own conditions before relying on it.
Chemicals with a similar resistance profile
Same 20 °C rating on the share of materials shown.