I just got some Tetenal stuff to try out, (easy to get in Europe), and I'm having a terrible time getting capacities, shelf life, etc for the Superfix, Indicet, Lavaquick, etc. Their website is all but useless. Some bottles have a little information on them, others have almost none. What a hassle. I hope the products are better than their access to specifications. Does anybody use this stuff and have it figured out?