The Berner 338987 Metal Kneading Mass 115g is an essential repair material designed for quick and permanent restoration of cracks, holes, leaks, and breakages on various metal components. This dark grey mass cures rapidly, allowing for drilling, sanding, filing, and painting after hardening. It offers excellent resistance to water, oil, fuel, acids, alkalis, and many other chemicals. With a temperature resistance range from -50°C to +120°C (short-term up to +150°C), it ensures durable repairs in demanding environments. It has a processing time of 3-4 minutes, cures in 10 minutes, and achieves final strength after 24 hours.