serpret

Yes, but it doesn't affect the body too much. And it's very nice if you have a batch of IC's that you don't want to individually deal with and you don't feel like messing with various liquid solutions.

This thread is pretty old, but I just wanted to add what our company does. We sometimes have batches of CPLD's with oxide on the pins that don't solder very well. My boss puts them into a small polishing tumbler overnight ( i think sometimes two nights) and the next day they solder much better. It's the same tumbler that people use to polish rocks or bullet casings. You buy some abrasive media for it like walnut shell peices or they make these little abrasive pyramids and you load it in with the ic chips and then turn on the tumbler and it gently vibrates the whole mess together until you turn it off again.