Pretty green flame Posted March 25, 2007 Posted March 25, 2007 This was a 3" round shell filled with better pearl stars. The shell weighed 163g and was lifted with 15g of 10-20mesh of BP. Action shot http://i15.photobucket.com/albums/a374/AVP2/Actionshotbetterpearlshell.jpg Movie http://rapidshare.com/files/22667819/Bette..._entry.wmv.html Comments welcome. Cheers
Rocket007 Posted March 25, 2007 Posted March 25, 2007 nice break. and a good simetry. good work realy!!!!
styropyro Posted March 26, 2007 Posted March 26, 2007 That had great symmetry. I really love those stars, I like how the trail is delayed behind the burning star. Man I need more barium nitrate right now...
Pretty green flame Posted March 17, 2008 Author Posted March 17, 2008 The composition is called better pearl and is, Potassium nitrate-47Barium nitrate-10Sulfur-18Charcoal-10Aluminum (Atomized) -10Dextrin-5 PGF
qwezxc12 Posted March 17, 2008 Posted March 17, 2008 Very pretty. What mesh atomized Al did you use? I'm assuming in the 20-30um range? Will larger Al shift the effect more into a glitter type trail? I like the flashlight "light and retire"
Pretty green flame Posted March 17, 2008 Author Posted March 17, 2008 Very pretty. What mesh atomized Al did you use? I'm assuming in the 20-30um range? Will larger Al shift the effect more into a glitter type trail? I like the flashlight "light and retire" The aluminium was 0-140micron. A more uniform particle size might be better in creating a more fine grained effect but this aluminium also works well. Haven't tried this formula with a finer and more uniform particle size so I can't say how it wil behave compared the coarser gradu of Alu.
TheSidewinder Posted March 17, 2008 Posted March 17, 2008 I realize this is a year late, but NICE SHELL! Job well done.
oskarchem Posted March 17, 2008 Posted March 17, 2008 Yep, nice shell, in the vid I saw some blue and red. Maybe your chems or star pump were a bit contaminated with Stronium/Copper?
Pretty green flame Posted March 17, 2008 Author Posted March 17, 2008 Yep, nice shell, in the vid I saw some blue and red. Maybe your chems or star pump were a bit contaminated with Stronium/Copper? Nope, I put some microstars in the middle of the shell. Was a pathetic attempt to create a small colourfull centre, it failed misserably as they were thrown out with the rest of the stars.
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