Brodak also has it. I’ve used Sig caster it’s the best in my book. Don’t know about this new company that bought out Sig. they moved it in the.zchicago area. I’ve also used the Brodak fuel. Kinda sounds like your doing own brew. But the stuff you buy at places like Walmart, and any of the drug stores is not good Caster for our purpose. You can get a gallon at Aircraft Spruce. I buy all my Dope from them and retarder and thinner also alcohaul. Keep them lines tight!