At a glance
Ratings at 20 °C.
- Rated A, very good resistance
- PTFE, HDPE, PP, PVDF, PVC Rigid, Viton (FPM), SS 316, SS 304, Aluminium, LDPE, FEP, PETG (12)
- Rated B, good resistance
- NBR, Nylon (PA), Acetal (POM), Polycarbonate (4)
- Rated C, limited resistance
- PVC Flexible, Polystyrene (2)
- Rated D, not resistant
- EPDM (1)
- No data in the source
- ECTFE/ETFE, Silicone, Polysulfone, PMP, SAN
- Rated lower at 50 °C than at 20 °C
- HDPE (A → C), PP (A → C), LDPE (A → C)
Rating profile by material family
Effect of temperature, 20 °C to 50 °C
Substance
- Name in the source (German)
- Öle und Fette, pflanzlich
Resistance table
| Material | 20 °C | 50 °C | Remark |
|---|---|---|---|
| Thermoplastics | |||
| HDPE | A | C | |
| LDPE | A | C | |
| PP | A | C | |
| PVC Rigid | A | A | |
| PVC Flexible | C | C | |
| Polystyrene | C | – | |
| Polycarbonate | B* | – | |
| PETG | A | – | |
| Acetal (POM) | B* | – | |
| Nylon (PA) | B* | – | |
| Fluoropolymers | |||
| PTFE | A | A | |
| FEP | A* | – | |
| PVDF | A | A | |
| Elastomers | |||
| EPDM | D | D | |
| Viton (FPM) | A | A | |
| NBR | B* | – | |
| Metals | |||
| SS 316 | A | A | |
| SS 304 | A | A | |
| Aluminium | A* | – | |
* estimated rating, given in the source without a temperature
Not rated in the source, so not in the table: PMP, SAN, Polysulfone, ECTFE/ETFE, 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 Vegetable Oils and Fats at high concentrations?
The materials with an A rating (resistant) for Vegetable Oils and Fats at 20 °C are: PTFE, HDPE, PP, PVDF, PVC Rigid, Viton (FPM), SS 316, SS 304. These can generally be used in direct contact.
Which materials should be avoided with Vegetable Oils and Fats?
Materials rated D (not resistant) for Vegetable Oils and Fats are: EPDM. These should not be used in contact with Vegetable Oils and Fats.
Does temperature affect chemical resistance to Vegetable Oils and Fats?
Yes. 3 of 11 tested materials show a worse rating at 50 °C than at 20 °C for Vegetable Oils and Fats. Materials affected include: HDPE, PP, LDPE.
Is PTFE safe for Vegetable Oils and Fats?
PTFE is rated A for Vegetable Oils and Fats 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.