Rating
| Concentration | 20 °C | 50 °C | Remark |
|---|---|---|---|
| 4 % | A | B | |
| 50 % | A | A | |
| 70 % | – | – | |
| 100 % | – | – |
Material comparison at 20 °C
Resistance overview
PMP shows excellent resistance to Hydrofluoric Acid across all 2 tested concentrations (4 %, 50 %) at 20 °C, making it a reliable choice for storage, transfer, and handling applications involving this chemical at any of the tested strengths. However, at 50 °C the resistance rating drops, indicating that temperature must be factored into the design. For heated applications, additional testing under actual service conditions is strongly recommended.
Application context
Hydrofluoric Acid is commonly encountered in chemical processing and water treatment. PMP (Polymethylpentene (TPX)) is a thermoplastic typically used for tanks, piping, containers and liners. Because Hydrofluoric Acid is classified as corrosive, the choice of containment material is especially critical to prevent leaks, equipment damage, and safety hazards.
Practical recommendation
No resistance data is available for PMP in contact with Hydrofluoric Acid. Before using this combination, consult the material manufacturer or conduct independent testing.
Did you know?
The ratings shown here apply to pure Hydrofluoric Acid in contact with the base thermoplastic. In real-world applications, additives, pigments, and fillers in the material can shift resistance in either direction.
Materials rated A or B at 20 °C
Based on the row for 70 %, 20 °C.
- Thermoplastics
- PP A, PVC Rigid A, LDPE A
- Fluoropolymers
- PTFE A, PVDF A, FEP A
About PMP
Polymethylpentene (TPX) is a transparent polyolefin used for labware. It resists many acids and alkalis, while aromatic and chlorinated solvents and strong oxidisers attack it.
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.
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.