I had the same very disappointing experience. Spent a fortune on a bottle and after the first time I used it the top dried up completely. I was only able to dig glue out with the top off a couple of times before the glue dried out from the air in the bottle. I would think it's a design flaw, to have a non collapsible bottle that has more and more air the more glue you use, vs other super glues where the container squashes down as you use it and doesn't store air. I did get a bottle of the brs glue with similar bottle as the ecotech glue and it's worked out okay though, so idk. I'll certainly never waste money on the ecotech glue again.