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"convention"al prime


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#1 californiapyro

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Posted 10 September 2011 - 01:06 PM

Hi! i need a nice hot prime, about comparable to bp/silicone, im going to a convention and don't have a mill so i need a comp that doesnt require milling. anyone have favorites? id like to avoid toxic things. thanks!

-Cali

Edited by californiapyro, 10 September 2011 - 01:07 PM.

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#2 busspuppy

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Posted 10 September 2011 - 01:12 PM

Thermite if you can get it to light :P lol. I am not sure of one.


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#3 californiapyro

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Posted 10 September 2011 - 01:24 PM

Thermite if you can get it to light :P lol. I am not sure of one.



think ya need bp to light thermite :rolleyes: thanks though
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#4 PersonGuyDude

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Posted 10 September 2011 - 01:28 PM

Hi! i need a nice hot prime, about comparable to bp/silicone, im going to a convention and don't have a mill so i need a comp that doesnt require milling. anyone have favorites? id like to avoid toxic things. thanks!

-Cali


I am going to be using veline's superprime for some of my stars.
I have silicon if you want to use sifted BP ~+10% Si, I forget the exact comp but it's around pyroguide or this forum somewhere...

#5 californiapyro

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Posted 10 September 2011 - 01:47 PM

hmm wonder if screened bp would work... ive got silicon, thx though. ah so you want to pm me the quantities of which chems you want/need?
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#6 Peret

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Posted 10 September 2011 - 10:03 PM

My hot prime: 20% black powder meal, 40% KNO3, 40% silicon, dextrin to taste. It doesn't need milling but the ingredients should be fine powders.

#7 californiapyro

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Posted 10 September 2011 - 10:30 PM

the bp meal doesn't need milling either?
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#8 Peret

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Posted 10 September 2011 - 11:15 PM

It's just there to ignite easily, not to shoot a shell.

#9 allrocketspsl

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Posted 11 September 2011 - 04:48 AM

Hi! i need a nice hot prime, about comparable to bp/silicone, im going to a convention and don't have a mill so i need a comp that doesnt require milling. anyone have favorites? id like to avoid toxic things. thanks!

-Cali


dont ball mill the bp/ sil prime the whole idea is to have it in green mix to work best

#10 californiapyro

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Posted 11 September 2011 - 07:44 AM

okay, thanks!
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#11 Mumbles

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Posted 11 September 2011 - 01:59 PM

There are people in both camps of if you should/need to mill BP primes. I typically mill for 20-30 minutes. This is mostly because my KNO3 was fairly granular. I've done it without milling many times, but milling it at least saves me some time screening.
Just so you guys quit asking, here is the link to the old forum. http://www.xsorbit2....forum/index.cgi

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#12 Peret

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Posted 11 September 2011 - 06:32 PM

I pre-mill all my nitrate and perc oxidizers to flour before I use them for anything, so my version of the prime above uses 20% ball milled BP, 40% ball milled KNO3 and 40% silicon out of the bag. I never tried making a green mix prime with crystalline KNO3. However, theoretically all you need is for the prime to take fire instantly from the burst - it doesn't have to burn very fast, and indeed it won't with all that silicon. I had 100% success with the silicon prime this year, reliably lighting the difficult barium nitrate stars that blew blind in the past, though looking at the videos, those stars don't actually start to burn until they're some distance from the center of the break.




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