Anyway, I have an aerosol of it, which is good for some parts but it gets everywhere and seems very thin, even after time for the solvents to evaporate. So, I thought I could get a tin of the stuff. Can't find it anywhere

Does anyone have a source for this? (preferably in Herts or Essex so postage doesn't double the cost but whatever you know about).
Or....is there a good alternative? I use silicone grease here and there and I think that would be a good, possibly superior, alternative? Although that only seems to come in tubes (is this the same as dielectric greas BTW, I have both and they seem pretty similar)