Product review (4 stars): Working
I used this in my dishwasher to try to get more time out of it.  My dishwasher is around 15 years old and the rack is starting to get rust where the plastic coating has worn away.  This is mostly in the plate slots.  I applied this product in July of this year (2015) and so far, so good. It isn't the easiest thing to use and takes several coats and is messy, which is why I took a star away.