czechtomasz Posted July 23 Posted July 23 Hello guys, i saw a video with very beautiful strobe mirco stars. is there any chance to create it without Ap? Greetings
Mlody44 Posted July 27 Posted July 27 Hello czechto, I think that the red strobe stars are made with the AP beacouse the have a good frequency and it's not changing (strobe nitrate based have a tendency to do it like that) but the strobe white microstars seems to be barium nitrate based with magnalium or something like this.
Pyroboy Posted July 28 Posted July 28 (edited) Well Nitrate based Strobestars give a washed out green or red colour. But you could definetly do that with nitrate based strobe. It really depends on the MgAl you have, if you get good Strobe stars. If you use green and red combined the colours look much more deep, because they are complementary colors and for the eye they look more intense than used alone. You could try a formula like this: Red 53% Sr(NO3)2 27% MgAl (somewhat around <65µm to <75µm) 5% - 10% KClO4 5% - 8% Saran, Parlon or CPVC 0,5% - 2% CuO or Bi2O3 as catalyst Green 56% Ba(NO3)2 23% MgAl (somewhat around <65µm to <75µm) 5% - 10% KClO4 5% - 8% Saran, Parlon or CPVC 0,5% - 2% CuO or Bi2O3 as catalyst You have to adjust the frequenzy with the % of catalyst and KClO4. If you have to much chlorion-donator you get a constant burn instead of a strobe. As Binder I would recommend nitrocellulose (5% -10%) because it supports the color and the strobe. But you can try with PVB (Mowital) or even dextrin. If you want to use it in fountains or waterfalls, like in your video, you should prime the stars and get a layer of slow burning delay on them. You do not want them to ignite in the fountain. Good Luck! Edited July 28 by Pyroboy
stibium Posted July 31 Posted July 31 This video is mine. I posted information about it on this forum.
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