Why can stainless steel hinge parts still rust?

The hinges on our toilet seats are made of high-quality, rust-free stainless steel. Urine and abrasive, chloric or acidic cleaners attack the surface and can make the hinges oxidise. Surface rust forms, which can usually only be removed by grinding and polishing the surface.

In order to avoid cleaning errors, please observe the information in the cleaning instructions included in the delivery.