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theatrical airburst composition


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#1 dave321

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Posted 14 September 2012 - 03:18 AM

just curious as to what maybe the "standard" air burst composition is?

are companies using 70/30 with added aluminium flake ?

one composition as quoted in the msds sheet by a swedish company is

pot perc 50
aluminium 25
antimony trisulphide 25

obviously no mention of aluminium particle size in an msds but the above would appear perhaps somewhat uneccessarily hazardous with the antimony sulphide

comments ?

dave
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#2 Arthur

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Posted 14 September 2012 - 04:29 AM

Don't be surprised if it's a nitrate flash. Remember that they want everything except bang from these. I'm guessing that the aluminium mesh sizes and their proportions are also important to the performance of the mix.

#3 dave321

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Posted 23 September 2012 - 09:24 AM

actually, on a small scale, (200mg) the above composition
seems less pokey than std 70/30
(probably do to the lower perc level and less aluminium)

obviously still needs care though

dave
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#4 Bcorso85

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Posted 04 November 2012 - 08:42 PM

The formula that the company uses is a toned down flash comp. Usually there's some titanium in it. The antinomy is added for more of a crack than a boom sound. number 5 concussions are all about noise. Honestly I don't think the 'authorities' know what one of those really is. Being the loudest indoor device, its an m-80. Aluminum particle size is always very small for the hotter burn. just a friendly reminder' no matter what the formula it is always dangerous.
Im working on making my own 20 shot cakes. I may take the above mentioned comp into consideration for a break charge on a 1 x 2 1/2 inch insert.

#5 spitfire

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Posted 16 November 2012 - 09:33 AM

Maybe this will work for your purposes:

KNO3 50
Dark Al 30
Sulfur 20

Fine flake can be used too, but less effective.
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#6 dagabu

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Posted 16 November 2012 - 11:37 AM

just curious as to what maybe the "standard" air burst composition is?

dave


Do you have a video of what you are looking for? All the stuff you guys have listed so far looks like a salute and not flame.

-dag
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#7 FlaMtnBkr

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Posted 20 November 2012 - 01:38 PM

I have heard of a theatrical flash that is, if I remember correctly, 50/50 strontium nitrate and magnesium. Might be worth looking into more.

#8 dagabu

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Posted 20 November 2012 - 03:40 PM

Our club does theatrical pyro (Proximate) all the time but only flash mugs on the ground are approved in a show here, no air-bursts.

-dag
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#9 kleberrios

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Posted 27 December 2012 - 07:12 PM

just curious as to what maybe the "standard" air burst composition is?

are companies using 70/30 with added aluminium flake ?

one composition as quoted in the msds sheet by a swedish company is

pot perc 50
aluminium 25
antimony trisulphide 25

obviously no mention of aluminium particle size in an msds but the above would appear perhaps somewhat uneccessarily hazardous with the antimony sulphide

comments ?

dave



Hi. The compositions above produce much smoke and is dangerous. The basic compositions is:

Mg 400 mesh,
strontium nitrate or Barium nitrate both 200 mesh
, Ti 30 mesh or flake aluminium 40 mesh.

Edited by kleberrios, 27 December 2012 - 07:13 PM.





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