[RocketsNW] IGNITERS

Greg Deputy greg at blastzone.com
Fri Apr 10 15:00:16 PDT 2009


This stuff is pretty much flash powder, treat it as such.  Work only with
small batches, treat like a high explosive (cause it borderline is if you
use fine metals), be EXTREMELY cautious of static, etc...

> -----Original Message-----
> From: rockets-bounces at rocketsnw.com [mailto:rockets-bounces at rocketsnw.com]
On
> Behalf Of Mfreptiles at aol.com
> Sent: Friday, April 10, 2009 2:26 PM
> To: brodwcjj at integrity.com; rockets at rocketsnw.com
> Subject: Re: [RocketsNW] IGNITERS
> 
> I think it would probably work just as well, the only problem being that
you
> can't tweak the percentages.  The good thing about doing it the other way
is
> that you can experiment with the ratios so that it is not overly
> sensitive...ie use less mg.  I used the standard 4.5:1 formula but added
0.1
> magnesium to that ratio and got the results I was looking for, easy
ignition
> with any e-match or igniter, but not overly sensitive to static or open
flame
> (wooden match).  It only takes a little bit, so you have to have a good
scale!
> 
> Roy is right it is static sensitive, but the sensitivity will decrease
with
> less magnesium or coarser magnesium powder.  The finer the powder, the
less
> you need to use.  Any formula with magnesium, including just the finely
> divided powder deserves respect.
> 
> If you experiment with this be careful to only mix and test small
amounts.
>  Copper vapor burns your skin instantly and deeply.
> 
> Mike F.
> 
> 
> In a message dated 4/10/2009 11:24:47 A.M. Pacific Daylight Time,
> brodwcjj at integrity.com writes:
> 
> Anyone  know if using  MgAl  alloy  might provide the ignition
> benefits, without the safety downsides of adding/mixing  Mg  powder
> with  Al  powder   ?
> 
> 
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