Is there any wax or sealant that offers real protection against the acids in bird crap? I put one coat of Klasse AIO and three coats of SG on my car in mid-June (which looked great, by the way, thanks for the recommendations). Monday afternoon a bird crapped on my roof. By the looks of it, it was a BIG bird. It was on there an hour or two at most before I saw it, but temps were in the mid-90s and by the time I cleaned it off (with QD and a MF towel) it had marred the clearcoat. When I saw the mark I did a search here and found a variety of possible solutions. I tried clay, I tried the rubbing alcohol/water mix, I tried AIO, but the mark is still there. I just ordered the Porter Cable orbital yesterday, so when it arrives I'll give that a shot, but for future reference, would a top layer of carnauba or anything else offer protection against this kind of thing? Frankly, I thought the AIO/SG combo would handle it, but obviously not. Under less drastic temperature conditions it probably would have been fine, but when it's hot I don't want to be running outside every 10 minutes to check the car.