Stainless steels are corrosion-resistant, but they are not completely impervious to rusting. The terms "rust" and "rusting" only mean oxidation of iron and its resulting products. Discs are usually damaged in one of four ways&colon; scarring, cracking, warping or excessive rusting. Common rebar is made of unfinished tempered steel, making it susceptible to rusting. The biggest employer was gone and the site was rusting and decaying. The wreck is rapidly disintegrating due to natural rusting. Other chemical additives are used to inhibit rusting and oxidation. Wire fences are substantially intact, though are prone to rusting. The tin prevents the can from rusting. Iron is more prone to rusting than (tinned) copper. It is surrounded by coral reefs populated with rusting shipwrecks visible above water. It contained a clear statement that the cement protected the iron against rusting. Most aircraft were only remnants rusting away for a decade or more. However now they have been abandoned and the factories are rusting. These were extremely prone to rusting and forced users to change blades frequently.