Product review (5 stars): Works as Advertised!
I used this on my racks where I couldn't put the caps and it works perfectly!  Make sure you follow the directions and get as much of the rust off; if not all of it!  The spots I used it on were in really bad shape so I ended up putting like 6 coats on!  I would put on a coat and wait 30 minutes and then put on another coat!  That seem to work the best for me and the product would build up on itself and I just kept applying until I reached my desired thickness.  There is plenty in this bottle you could probably paint your entire rack if you wanted!  Also I found that it worked better if you dabbed it on more than if you brushed it on!  Don't put too much on at first if you are trying to achieve a certain thickness; build it up with multiple coats!