Product review (1 stars): My rack was too far gone
I believe this product to be more preventative than repairing.  Once your dishwasher rack prongs have started to rust or are at all swollen with water the caps no longer fit over the prongs.  I tried cutting the prongs down to a spot where they were not rusted and then using the paint and cap but this was a very messy process (due to the metal prongs being very difficuly to cut and metal particals everywhere).  Also it took a very long time to do just a couple prongs.  I figure it would take me about 40 hrs to do the entire dishwasher racks.  The glue was also quite runny and did not stick the prongs very well causing it to run off of the place where you really wanted it.  Sorry but this is not the solution to repairing rack in poor condition.