"Max2"
What is a " controlled environment" for glue?
The same as a controlled environment for any other item, product, or being. For example in my location the temperature may range from an extreme of 0-f to 105-f plus. Depending on the time and season of the year and the year itself. Even so I have not had any problems keeping Titebond in an uncontrolled environment.
(in a shed out of doors, a place or environment where nature has its way temperature wise in this case).
Since you live in an area of the world 'which may' be more extreme in weather conditions than my area, perhaps this 'might' be the source of your problem with Titebond. I have not read the fine print on storage suggestions by the manufacturer of Titebond, but perhaps if you were to store yours somewhere in your home for example, a place where the extremes are never reached,
("a controlled environment"), your problem would cease? That is if you are not storing it in a
("controlled environment") already? Thus the question. I hope that helps...
Phillip