hehe, i learned this in orgo 2.

It's uric acid and the nitrogren concentration is what will seriously fuck your shit up if you let it sit. Getting it off asap would be ideal.. other than that, just some wax and elbow grease works. I've also heard of this.. of never knew anyone that bought/used it.. only one way to find out

http://www.properautocare.com/howdoirebidr1.html