ruipirotec Posted October 29, 2018 Posted October 29, 2018 Hello everyone, I would like you to help me discover the effect of aerial shells at minute 5.40. This pyrotechnics usually uses this effect a lot, both in aerial shells as well as in comets. I do not know if it's a kind of glitter or some flitter with a specific type of aluminum. Best Regards (I used google translator)
PhoenixRising Posted October 30, 2018 Posted October 30, 2018 Best guess would be a silver palm or silver willow type star. Some use all spherical aluminum, flake aluminum, granular titanium, spherical titanium, a combination of any of these, and either nitrate or perchlorate oxidizer, or both. https://www.amateurpyro.com/forums/topic/12030-tailed-stars/ https://www.amateurpyro.com/forums/topic/8003-long-tail-silver-willow-stars-compositions/ https://pyrodata.com/PyroGuide/index.php%5Etitle=Silver_Stars.htm Whatever you try, make sure you have a good hot prime. Some of these might not light very easily.
ruipirotec Posted October 30, 2018 Author Posted October 30, 2018 PhoenixRising Thanks a lot for the help I'll try some of these, I've already seen similar formulas used by "pirotex" and "piroQuake" as the name D1 mod, but I never saw the formula. The worst of it is that I do not have access to perchlorate, but I'll try kno3.
PhoenixRising Posted October 30, 2018 Posted October 30, 2018 No problem, hopefully you can figure out how flake aluminum works in these as I don't have any 809 or the likes. KNO3 can still give you a satisfactory effect, it just may have a touch of gold or yellow to the color compared to a perchlorate based variation. The good news is that nitrate versions tend to be little easier to light. Good luck!
Mumbles Posted October 31, 2018 Posted October 31, 2018 It looks a little bit like a breaking glass comet or a little bit like a high metal firefly. In any case, I would expect the metal in those streamers is quite coarse. You need something pretty big to get that sort of impressive hangtime. I'd venture a guess there is a considerable amount of metal coarser than 50 mesh. Eckhart makes a product called 41813 that is a pretty coarse flake Al. Transmet makes a very coarse material, K-101 or K-102, that is a bit thicker of a flake. Those might be what I'd start with. The effect is a bit far away to get a really good idea of what sort of formula they use or what the metal/particle shape is exactly. Coarse atomized Al or sponge Ti might also work. 1
ruipirotec Posted October 31, 2018 Author Posted October 31, 2018 Many thanks Mumbles, at first glance the effect seems to be some coarse aluminum, with a large retardant. I have aluminum flake 44μm and 250-650μm and also sawing filings. In my opinion the titanium can not be, I think it is a very silvery color for titanium, but I am no expert to state this. In some videos I've seen appear effects appear, I'll leave them in case anyone is interested. Thank you one more time.http://www.pyrobin.com/files/c8%20%2B%20d1%20%28mod%29.mp4 from pirotex from F5112
Recommended Posts