jcow

Ok, thanks for the advice guys. perhaps i'll stick to chlorate and charcoal for reports. Is it possible to obtain flake aluminium in the UK? i looked on inoxia, and they only stock atomised powder.

Using sodium chlorate for potassium chlorate synthesis is probably the only justified pyro use.

Ok, i dont want to cause any trouble

Thanks, i wasnt sure that the cylinder would be light enough. I might have to buy one of those hybrid kits on http://www.hpr.org.uk/mhybrid , As long as i can legally own and use it without any lisences!

Just going back to the bentonite problem, I use plaster of paris for making rockets and salutes. I wet the powder slightly and mix(about 1:6 water to plaster of paris by volume). When this is rammed into a tube well by hand, it is strong and light. It isnt as good as bentonite, but it is cheaper and available from most chemists in the UK. the plugs can crumble if the tube is crushed. Adding more water and leaving to dry overnight would produce a much stronger plug, but i dont have the patience for this!