Jump to content


Photo
- - - - -

distress flare composition secret revealed


  • Please log in to reply
5 replies to this topic

#1 val77

val77

    Pyrotechnician

  • Full Member
  • PipPipPipPip
  • 267 posts
  • Gender:Male
  • Location:France

Posted 09 December 2012 - 02:59 PM

observing a red parachute flare, I disassemble and I carefully examine the flare, I saw something intriguing

Indeed, instead of using magnesium powder as fine for the stars
they use rather coarse magnesium which makes the slow-burning and bright red

when you turn on a handflare you see sparks, it is the combustion of magnesium coarse
When I can, I will test it and you would share my findings

greetings

Edited by val77, 09 December 2012 - 02:59 PM.


#2 Mortartube

Mortartube

    Pyromaniac

  • Full Member
  • PipPipPip
  • 154 posts
  • Gender:Male
  • Location:East Sussex, United Kingdom

Posted 10 December 2012 - 06:04 AM

The tonnage that it is pressed at also determines brightness and burn time within certain boundaries. Some military flares are pressed around 60 tons.

#3 Brkdnc

Brkdnc

    Playing with fire

  • Full Member
  • PipPip
  • 10 posts
  • Gender:Male
  • Location:Midwest USA

Posted 10 December 2012 - 02:53 PM

I would really like to know how this turns out. I have some 26.5mm flare cases that I would like to re-load
My Web Pages http://www.brkdnc.com/

#4 val77

val77

    Pyrotechnician

  • Full Member
  • PipPipPipPip
  • 267 posts
  • Gender:Male
  • Location:France

Posted 10 December 2012 - 03:04 PM

the flares manufacturers use a coarse magnesium in the flares (70 mesh) in the classical red flare formula

#5 mabuse00

mabuse00

    Pyrotechnician

  • HE Qualified
  • PipPipPipPip
  • 465 posts
  • Gender:Male

Posted 11 December 2012 - 05:28 PM

I recently bought such 70 mesh stuff extra for Mg flares, because 200mesh allways tended to "explode" on me.

I can tell you that the difference was barely noticable.
I even made salutes with homemade drilling turnings.

Coarse stuff is NOT the "secret" you mention (imho)!
Pressing really hard seems to be. I don't think this is easily doable for small scale hobby pyros.

Edited by mabuse00, 11 December 2012 - 05:29 PM.


#6 Seymour

Seymour

    Pyrotechnician

  • Donator - HE
  • PipPipPipPip
  • 936 posts
  • Gender:Male
  • Location:New Zealand

Posted 04 January 2013 - 06:07 PM

I always expected that other than the cost, the Mg in emergency flares was so large to reduce metal surface area and improve shelf life.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users