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Rice Hulls or alike


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#31 Jerronimo

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Posted 25 November 2008 - 08:21 PM

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.
"Any society that would give up a little liberty to gain a little security will deserve neither and lose both."

#32 pyromaniac303

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Posted 25 November 2008 - 08:37 PM

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?
You can never have a long enough fuse...

#33 Gedas pyro

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Posted 19 December 2008 - 04:20 PM

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

#34 Bonny

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Posted 19 December 2008 - 04:21 PM

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.

#35 Gedas pyro

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Posted 19 December 2008 - 05:21 PM

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.

#36 Pyrogeorge

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Posted 19 December 2008 - 07:13 PM

I will use this..

Posted Image

it is barley

#37 Pretty green flames

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Posted 19 December 2008 - 07:18 PM

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

#38 Pyrogeorge

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Posted 19 December 2008 - 07:30 PM

i make a test first.. ;)

#39 spanner

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Posted 19 December 2008 - 09:35 PM

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.

#40 Gedas pyro

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Posted 20 December 2008 - 12:20 PM

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




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