It's not hard to purchase at all. I buy it by the gallon at Lowes $20 and use it for cleaning out paint guns that I shoot epoxy primer through. Nothing else will clean out epoxy primer from a paint gun. You do want to work in a well ventilated area with it though. This stuff can definitely hurt you if the fume concentration is high enough. Makes a great solvent adhesive. I keep the MEK I use as solvent adhesive in a glass baby food jar, an dip acid brushes in it to use it. If you cannot find MEK, go to a good hobby store and purchase "plastiweld solvent adhesive" an itty bitty bottle of essentially the same stuff will be about $20 lol. I work with MEK daily in the aviation industry for the last 25 years. No problem, I'm not dead yet.
