Claire mails stuff all over the work from here in Canada. Hope you can find a local source though, because this is a 37% aqueous solution, as I recall.

I don't think anyone would be down on you for using a commercial blix in a home brew process. I know there is the pride thing, but, balance that against the option of paying post on more than 60% of the jug being water, if you cannot find a domestic supplier.