Product review (4 stars): Great, but catch your problem early
We are renting a house and the dishwasher racks are in terrible shape.  I had to use a ton of this stuff to cover up all the rust spots.  So far it is holding, but I think it would be best used as a maintanence product to keep your racks in good shape; not as a repair for something already severly rusted.  My in-laws used the rest of the bottle on thier racks and loved the outcome.  They were not in as bad a shape as mine.  It does have a heavy paint smell, so make sure you remove your racks and take them outside if possible.