realskiers

Sealant will completely dry up and cake the inner tire wall long before two years....and sealant (especially Stans because it has ammonia in it) does shorten sidewall life...I change tires every 6 months (and sooner depending on use). 

Supposedly the Caffe Latex, because it lacks certain chemicals in Stans, is less corrosive of tires...which may be true, I just didn't think it sealed anywhere near as well as the stand sealant.

All sealant based tubeless designs and uses still have a bit of that 'Backyard inventor' feel to them and tinkering around and being willing to suffer a few mishaps along the way is a part of the learning curve to get the most out of them.

Bring rags, degreaser wipes, a leatherman ('cause your valve stem might get 'glued in or up' and need pliers to remove or open) and a tube and an air source on every ride once you start using a sealant based system....eventuall y it will come in handy.