Rating
| Concentration | 20 °C | 50 °C | Remark |
|---|---|---|---|
| concentration not stated | C* | – |
* estimated rating, given in the source without a temperature
Material comparison at 20 °C
Resistance overview
Polycarbonate has limited resistance (C) to Diisobutylene at 20 °C. This indicates that the chemical has a noticeable effect on the material, which may include visible swelling, softening, or a measurable loss of tensile strength. Use is generally limited to short-term or intermittent contact where full structural integrity is not required. The rating remains stable between 20 °C and 50 °C, which means this material can also handle moderately elevated process temperatures without additional risk.
Application context
Diisobutylene is commonly encountered in cleaning and degreasing and pharmaceutical manufacturing. Polycarbonate (Polycarbonate) is a thermoplastic typically used for tanks, piping, containers and liners. Since Diisobutylene is flammable, material selection must also consider the risk of static charge buildup and the need for proper grounding in storage and transfer systems.
Practical recommendation
Polycarbonate has limited resistance to Diisobutylene and should only be used for short-term or intermittent contact at ambient temperature. The C rating means the material undergoes noticeable changes — swelling, loss of strength, or surface degradation — that make it unsuitable for permanent installations. For prolonged or continuous exposure, Nylon (PA), Acetal (POM), PP offer significantly better resistance and are rated A.
Did you know?
The ratings shown here apply to pure Diisobutylene 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
- Thermoplastics
- PP A, Nylon (PA) A, Acetal (POM) A, PETG B
- Fluoropolymers
- PTFE A, FEP A
- Elastomers
- Viton (FPM) A
- Metals
- SS 316 A, SS 304 A, Aluminium A
About Polycarbonate
Polycarbonate is attacked by alkalis, amines, ketones, esters and many organic solvents, and it stress-cracks under load in contact with them.
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.