| Material | Spring Steel, Flat Wire | Stainless Steel, Flat Wire | HT | Perlon | Stainless Steel, Crimped Wire |
|---|---|---|---|---|---|
| Images |  |  |  |  |  |
| Property | (not suitable for stainless steel) | Suitable for stainless steel | temperature-stable up to approx. 250 C° /482 °F* For light sweeping | Retains its shape up to approx. 122 °F Plastic bristles for stainless steel pipes | For tough, stubborn stains (soot) |
| Hardness levels | Soft Medium hard Very hard, in galvanised version | Soft Medium hard Hard | Soft | Soft | Soft |
| Dimensions in inches | 15 - 80 cm / 6'' - 32'' | 15 - 40 cm / 6'' - 16'' | 7 - 30 cm / 3'' - 12'' | 15 - 50 cm / 6'' - 20'' | 15 - 70 cm / 6'' - 28'' |
*always in reference to dry exhaust gas
