Tenax is methylene chloride so not all styrene glues are MEK.

MEK is also far more flammable than methylene chloride; both are fairly volatile which is annoying to both one's respiratory system as well as one's wallet as you watch the contents of your bottle evaporate.

MEK is also one of the few solvents that I do not keep in my chemistry labs.

As such, I use methylene chloride that I store in 20 mL scintillation vials fitted with polypropylene compression seal caps that eliminate evaporation loss.

Martin Brechbiel