I'm pretty ticked too that there is no shelf life for the product. I only maintain a personal fleet of cars and the plan was to do one car last fall, and two more this Spring as time presents itself. Now it looks like I've got a $50 3/4 full bottle of unusable product I'll most likely have to toss after only one use...not happy at all.
I did not rub through the stickiness. I couldn't. Towels simply wouldn't slide and the product wouldn't level. It was like I'd spread adhesive on the surface. My only option was to wait until it was almost dry and then I muscled through buffing it out like a really bad sealant. It took a very high level of effort.
Here is the kicker. Despite the absolutely horrible application experience, the product really works. The car looks great, sheds dirt easily, and the protection is still going strong. I'm just not convinced the application issues and zero shelf life is worth the trouble.
I don't think I'm ready to drop the money for PBL or the higher-end coatings. Coatings are exactly what I want/need, but the cost for a good coating is still prohibitive for me at this point. It looks like I'm going back to sealants.
So you smeared it all over the whole car even though it was "adhesive-like", left it harden, then hand rubbed it smooth?