Berner CONUSPEN 400ml (part number 147618) is a high-quality rust remover featuring a cold shock effect. Its specialized formula and excellent creeping properties enable it to quickly and reliably loosen even heavily corroded connections. The cold shock action breaks open the rust layer, allowing the active ingredient to penetrate effectively. This silicone-free rust remover also contains additives for additional lubrication and protection against new corrosion, making it suitable for a wide range of industrial and automotive maintenance tasks.