They don't sell pints, I had to buy a gallon. Just ask them if they will still sell you a litre. Sometimes they will open the gallons and repack them but probably only for good customers??

Try Lavender in Qld, they have the Marbocote release system but I don't know what size packages it come in.

All good, I've got a gallon of the Frekote and it works like a charm. Should last me ages as well, I've got it tightly sealed in a box full of silica chips so I can hopefully keep any moisture out of it. 

Thanks for the info, that's good to know. I've got some of that laying around but with so much time and money in the molds I haven't switched from wax/pva.

Just be careful if it's been sitting around for awhile. It's very hygroscopic, and moisture kills it. So test it is still working after you apply it by using some masking tape or hot melt glue. If it's working then it will come off extremely easily. If you have a highly polished mould, you'll probably find that the tape won't even stick in the first place, it will just curl up on itself.