Rating
| Concentration | 20 °C | 50 °C | Remark |
|---|---|---|---|
| 1-6 % | – | – | |
| 20 % | – | – | |
| 40 % | A | C | |
| 60 % | – | – | |
| 80 % | A | C | |
| 95 % | – | – | |
| fuming | D | D |
Material comparison at 20 °C
Resistance overview
The resistance of PVC Flexible to Sulfuric Acid is concentration-dependent. Across the 3 tested concentrations (40 %, 80 %, fuming), the 20 °C rating ranges from A at lower concentrations to D at higher ones. This means engineers must verify which concentration their process actually involves before relying on a single rating. 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
Sulfuric Acid is commonly encountered in surface cleaning and laboratory work. PVC Flexible (Flexible (plasticised) polyvinyl chloride) is a thermoplastic typically used for tanks, piping, containers and liners. Because Sulfuric 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 PVC Flexible in contact with Sulfuric Acid. Before using this combination, consult the material manufacturer or conduct independent testing.
Did you know?
When choosing between thermoplastics for Sulfuric Acid service, engineers consider not just the resistance rating but also factors such as permeation rate, creep resistance, and weldability.
Materials rated A or B at 20 °C
Based on the row for 95 %, 20 °C.
- Thermoplastics
- PVC Rigid B, PMP B
- Fluoropolymers
- PTFE A, PVDF A, FEP A, ECTFE/ETFE A
- Elastomers
- Viton (FPM) A
- Metals
- SS 316 A, SS 304 A
About PVC Flexible
Flexible PVC shares the solvent weaknesses of rigid PVC, and any liquid that extracts the plasticiser also hardens it. It is generally less resistant than rigid PVC.
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.