:nixweiss I've only been using it since mid January (the 18th, I believe). It has been on my car since about a week after that and is holding up well. It's been on my brother's van since the 18th and he said it is still beading nicely.
Probably going to be mid March to April before durability is really known.
Simply sounds like cool temperatures and too much product. I've done over 20 vehicles with my first bottle of NXT and still have at least 1/3rd of a bottle left.