QUOTE (omartcruisers @ Dec 8 2011, 04:57 PM)
I guess it depends on how much rust and how thick it is but I have had some parts take 4 to 6 hours and others take days. It's pretty cool to watch the chemical reaction though, or at least I thought so. I have had some stickers go in the vinegar and come out fine but I have had other destroyed. In your case I would try to mask the are off since it's a Hutch and all. Most of the parts I have done were not as desirable.
I soaked my Auburn rear triangle for a week. Stickers look the same as before I dunked it. I was hoping it would make them new again