Quote Originally Posted by paul_c5x4 View Post
formalin is just as difficult to obtain - Try asking for it in any high street chemist here in the UK...
So many things are difficult to obtain in the High Street these days, but eBay has come to the rescue a bit.
I got some Formalin (for a different purpose) a few months ago from a UK eBay seller called APC-Pure, who have all sorts of other chemicals available, including a few useful in photography.

As an aside, Borax has become stupidly hard to get hold of, but if you have a Chinese Supermarket nearby they generally have it (I think there used to be one in Ber St)