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| Bob... |
 Posted: Sun Jul 05, 2009 6:23 am |
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Guest
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Starting in the early 1990s, I've made a few versions of red go-getter
along the lines suggested by Troy Fish. The version I shot July 4
this year was a very deep red, rivaling the chlorate red that I'd
raved about recently.
Sr(NO3)2 33
Al flake -325 mesh 6
Saran 6
Parlon 3
stearic acid 3
red gum 2
These were formed approx. 1.5 g/star around match using acetone (not
pre-dried) with a pinch of boric acid.
As go-getters, they didn't go or get. Nor did they exhibit the
tailing I'd seen with other versions, even with a whistle mix break,
although in static tests they did spark a LITTLE. The ratio of Saran
to Parlon had been increaesd over previous versions to produce a form
that would firm up and adhere more quickly during working around bare
match, and the stearic acid was increased to improve the depth of
color, which had been weak in previous versions.
Troy Fish warned that stearic acid slowed the burn (he said S, which I
haven't tried with these, improves color depth without slowing the
burn), and indeed these were not suitable as go-getters. They didn't
noticeably self propel and they burned all the way to the ground.
However, the color was notably deep especially in consideration of
their using Al fuel and no chlorate or perchlorate. Too bad my friend
Ralph's video camera wouldn't stand by long enough to catch the break.
Those who seek a deep and fairly bright nitrate-based red should
consider adapting this to an ordinary primed star comp. I don't know
how easy it would be to adapt to a dextrine-bound or even an alcohol-
wet formula; maybe slightly alcohol dampened box stars would be the
closest adaptation, or if you're good at manipulation, keep them in
the form of go-getters but with less material around each match. I
don't think I can make them smaller unless I were to develop a sort of
dip technique with considerably more solvent to compo.
Whether tailing could be incorporated via some coarse Al without
overly damaging the color, I don't know.
Robert |
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| Bob... |
| Posted: Sun Jul 05, 2009 5:58 pm |
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This should also be taken as proof of Lloyd's statement that deep
colors can be had with nitrate oxidizer alone. I might try modifying
mine with KClO4 or KClO3, however, for faster burn. |
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| spartono'dan... |
| Posted: Mon Jul 06, 2009 11:29 am |
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Guest
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On Jul 5, 11:58 pm, Bob <robg... at (no spam) bestweb.net> wrote:
Quote: This should also be taken as proof of Lloyd's statement that deep
colors can be had with nitrate oxidizer alone. I might try modifying
mine with KClO4 or KClO3, however, for faster burn.
Robert,
that's close to a red delay I use that has a close to amount of Kclo4
with Mag.
It's about the brightest red I've seen. |
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