Flash rust removal?

I have had good luck with Evaporust. I got mine from Harbor Freight for $20 per gallon. They say 1 gallon will remove 1/2 lb of surface rust.

Here is the link:http://www.evaporust.com/evaporust.html

I used Evaporust and a scotch brite pad. Took all the surface rust off pretty quickly. I then rinsed with clean water.