On Jul 1, 4:32=A0pm, danielkaiser...@[EMAIL PROTECTED]
wrote:
> On Jul 1, 7:42=A0am, TONY S <kclo42...@[EMAIL PROTECTED]
> wrote:
>
> > On Jul 1, 12:12 am, LadyKate <ladyk...@[EMAIL PROTECTED]
> wrote:
>
> > > Not bismuth dioxide. Bismuth trioxide.
>
> > > Skylighter is one source for either bismuth trioxide or bismuth
> > > subcarbonate. However, the prices are getting higher by the day.
=A0I
> > > know a guy who is selling a 50 lb bag of bismuth trioxide for 1568
> > > bucks. ;-}
>
> > > The lead oxides will be lots cheaper - you can get them through
> > > ceramic suppliers.
>
> > I concur with kate. =A0www.quartzpegmatite.comhaslead trioxide foe 10$
> > a pound
>
> #@[EMAIL PROTECTED]
dragon eggs!
> Bismuth trioxide check, new copper oxide check, new Mag/al -80 thru
> +250 errr check.
> Screened the Mag/al and held -80 +100, went into the boonies of S.
> Indiana and picked up a new can of NC, along with my star roller from
> a buddy.
> This was my 8th attempt at crackle, to offset the chance of failure I
> stopped at a 1.4 shop and bought 2 types of "crackle balls".
> Made the 37.5-37.5-25 that Lady Kate spoke of, poured the NC which is
> a lot thinner than the double base I have and made a soup.
> Stirred it down till thick and cut.
> Unprimed,they smolder for awhile and throw an odd small spark.
> Took the crackle balls apart and burned a core.
> Very bright, and fast prime.
> I'm going to redissolve with a little more NC, and make a hot prime
> and see.
> I have a silicon green prime that I'll finish with.
> If anyone sees something amiss, please let me know.
> Dan
Just in case - Use thick NC lacquer (15% or thicker). Not thin NC
lacquer that is used to make a thick mix of egg comp.
I use much finer MgAl. I know, I know, everyone does it differently. I
don't know if that is your real problem but I use -325 MgAl and expect
a fairly quick pop when they are ignited. Here is an often played
video:
http://www.wichitabuggywhip.com/fireworks/extra/****hscrackle2.wmv
|
