ajaysrifireworks Posted September 13, 2021 Share Posted September 13, 2021 Anyone know cold Pyro fountain composition Link to comment Share on other sites More sharing options...
dave321 Posted September 13, 2021 Share Posted September 13, 2021 nitrocellulose +titanium flakes probably Link to comment Share on other sites More sharing options...
Arthur Posted September 13, 2021 Share Posted September 13, 2021 As ever check what grade of NC is best. Link to comment Share on other sites More sharing options...
msantosh1989 Posted September 1, 2022 Share Posted September 1, 2022 Composition: Ammonium perchlorate - 11, NC - 14, Ti - 24 Link to comment Share on other sites More sharing options...
msantosh1989 Posted September 1, 2022 Share Posted September 1, 2022 Green cold fountain: Ammonium perchlorate 15-20%, NC 15-20%, Boron powder 25-40%, Magnalium 5-15%, Ti 6-12%, Barium nitrate 8-15%. Link to comment Share on other sites More sharing options...
ajaysrifireworks Posted September 15, 2022 Author Share Posted September 15, 2022 Thanks brother 1 Link to comment Share on other sites More sharing options...
nordicwolf Posted September 16, 2022 Share Posted September 16, 2022 Where do you get Boron Powder? --thanks Link to comment Share on other sites More sharing options...
cmjlab Posted September 21, 2022 Share Posted September 21, 2022 (edited) For what it's worth, there is some interesting info on the "cold spark" fountains and machines at the following site (it's quite interesting). https://www.theatrefx.com/cold-spark-machine-facts.html BLUF: Cold spark machines use a high heat exhaust fan to ignite titanium particles as they are blown out of the device. Titanium particles that small lack the mass necessary to transfer enough heat to burn skin if held far enough from the ejection port. Do the same thing with a piece of paper and it would likely ignite. The "cold" sparks only applies to silver, as different metals with higher burning temps are used for gold sparks. Charles Edited September 21, 2022 by cmjlab Link to comment Share on other sites More sharing options...
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