Product review (5 stars): Does the job
I purchased this to fix rust spots on a standard, white, dish drainage rack. The rack has a small tray used to hold small spoons and other items. This attaches to one end of the rack, but the hanger on this tray wears off the protective coating on the rack and exposes the underlying metal which then rusts.

I cleaned the exposed metal using an Exacto knife, followed by a further cleaning with a wire brush on my Dremel tool. This actually temporarily opened up the area around the "wound," making things worse, but also giving me something solid for the repair to adhere to.

I then proceeded to build up the coats, putting on a generous coat, waiting thirty minutes, and then applying again. I did no further preparation between coats. After about seven coats, I let the rack dry for two days, putting it over the heat register in our breakfast room in order to help ensure a complete cure.

It has now been in service for a week, and it looks good, and is holding up so far.

Of course the real test will be how it looks in six months, but for the moment, it looks great, and the material seems to be quite durable.