39 replies to this topic

[Jerronimo]

Hi guys been a while since I've been on here.


What about ground up corncob?
perfect substitute for if not better then rice hulls.

In my experience rice hulls have a tendency to compress to much when loaded into a shell, which in some cases can cause a fire block.
Especially when the shell is broken very hard with a whistle or flash booster, resulting in poor star ignition and break.
NOTE: rice hulls available here are NOT the same as the Chinese use in their shells.

Corncob has a number of advantages:
1: Absorbs little water
2: easy to coat
3: cheap
4: readily available
5: composed of hard grains that don't compress(very important).

Available in pet shops, it is used as bedding material for Guinea pigs etc.

Rule of thumb: the heavier the carrier the lower the ratio.

Rice hulls typically have a ratio of 6:1 Bp/rice hulls,
Because corncob is more then twice the weight for a given volume then rice hulls a lower ratio of 3:1 or 2:1 is used.

[pyromaniac303]

I tried a homebrew supplier in Doncaster the other day, but they don't seem to sell oat husks. Due to the stickiness of oats, I would have thought oat husks would be ideal and would take burst powder up better than most other carriers, but maybe all of the starch is in the oat its self?

[Gedas pyro]

hey what do you think about hay straws if we cut them in desiered size and coat them?

[Bonny]

hey what do you think about hay straws if we cut them in desiered size and coat them?

I'm sure they would work, but I think cutting would be an unecessary hassle as other much easier options are available.

[Gedas pyro]

In my country there is not much options .I knew people who using wheat and just oats and what do you think is better straws , wheat or oats.

[Pyrogeorge]

I will use this..



it is barley

[Pretty green flames]

But that's with everything still inside, won't that add unneccessary weight to your shell?

[Pyrogeorge]

i make a test first..

[spanner]

But that's with everything still inside, won't that add unneccessary weight to your shell?

Seems like it would. I see that barley has a 15% water content, at least that weight could be gotten rid of by oven-drying.

[Gedas pyro]

I thik it's oak .My friend using it and he is verry satisfied.