I must apologise for smiling to myself when I saw your name (KCF) linked to this thread title.
but I just have that type of sense of humour - nothing personal.
Now to the serious bit - 7dayshop.com, for example, have Silica Gel listed :-
http://www.7dayshop.com/catalog/defa...o=SEARCH&comp=
but the p+p is £3.95! Maybe someone knows where it can be bought a bit nearer to home (with less p+p)?
Roger