What are the properties of FKM?
FKM (fluoroelastomer) is a durable elastomer that is resistant to high temperatures (from -20 °C to 200 °C) and numerous chemicals such as mineral oils, fuels, and moderate acids. It offers high aging and pressure resistance, but is not suitable for highly concentrated acids or oxidizing media.
Properties of FKM
| Product specification | Seal material |
| Material | FKM (Fluoroelastomer) |
| Color | mostly black |
| Technical Properties | |
| Service temperature | -20 °C to 200 °C / -4 °F to 446 °F (higher and lower is possible depending on medium and application) |
| Working pressure | up to 16 bar / 232 psi (higher is possible depending on medium and application up to 90 bar / 1305 psi) |
| Physical and Chemical Properties | |
| Physical | Very good aging resistance, high pressure and temperature resistance among elastomers, suitable for vacuum |
| Chemical | Resistant to mineral oils, fats and waxes, motor oils, fuels, aliphatic and aromatic hydrocarbons, amines, hydraulic fluids, essential oils, moderate and low concentrated acids. Not resistant to concentrated acids (e.g., nitric acid, formic acid), concentrated oxidizing media (e.g., peracetic acid) |
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