I just retired from the Arizona DOT as a mechanic. We were getting all kinds of grief from the ninnies down in Phoenix Purchasing. They insisted on MSD's, approved by them, before we could buy any chemicals, and of course they were clueless. Finally someone figured out a workaround: Whatever products are sold to the general public in grocery stores, hardware stores, lumberyards, etc. are not required to have MSD's. And you can find some pretty good stuff at these places, at least in AZ. The local Homeco has MEK and other good solvents. I just bought some lacquer thinner there which is the good stuff! So find a buddy with a bike with big saddle bags (or small car) and give him some gas money for a day trip to Yuma, Kingman. etc. Oops, on second thought, maybe you better provide him with an armored truck for safety!