Keramik Rostloser mit Kalteschock, a ceramic rust remover. Properties. It immediately separates rusted bolts and nuts. When it is sprayed on the surface, the cold shock effect appears, which leads to rust cracking and penetration of the active substances into the narrowest gaps. The comprised micro-ceramic particles ensure excellent lubrication and reduce friction. Keramik Rostloser mit Kalteschock prevents corrosion formation. It does not negatively impact plastic, lacquer, and metal. Application. Spray the product on the nuts or bolts and leave it for some time depending on the corrosion level. Then remove the substance. It is recommended to repeat the procedure in extreme cases.