kingkama Posted September 4, 2022 Share Posted September 4, 2022 Yes I think close to 100% ignition, it was only a 5/8" bombette so only about 80-100 stars. I used a lead tetroxide based formula, I think it was: lead tetroxide - 70black copper oxide - 12.5MgAl - 12.5Al - 5 Bound with about 20 parts paint grade NC lacquer, rolled out into a thin sheet and pushed through a 12 mesh screen. Nc Is not mandatory pvb or phenolic could do the trick Link to comment Share on other sites More sharing options...
cmjlab Posted September 6, 2022 Share Posted September 6, 2022 (edited) Pyrophury - where did you get your Lead Tetroxide? I haven't seen it through the normal pyro chem suppliers, but wanted to get some and try DEs with it. I've heard they are louder (which I get is subjective), so I curious. Thanks.Charles Edited September 6, 2022 by cmjlab Link to comment Share on other sites More sharing options...
skysparkler Posted September 8, 2023 Share Posted September 8, 2023 (edited) Here's a recipe that works great an few hooks and secrets are here. Composition are 70 lead tetr./12.5 CuO/17,5 Mg all/+ 5 atomized al 325 mesh works well . Russian grade sperical al АСД4 are best for me. I try two this and АСД4 is more beter.or try finer al like 400mesh. Magnalium i use finer homemade milled to lightgray consistency. More than less magnalium have impurities ,and for best result need to wash with distiled water.Bind with 20g NC 10% saturation to 100g. crack mix. 1,5 mm roled sheet past trought 2mm mesh https://ibb.co/72YhZS7Spark mix without prime layer Kno3 48S 12 C 12Fenol formaldehide 12 ~ Red gum 14AlMg 10Dex 4Si+ 7 Si heatup microstar and more are triggered synchronously, without iner prime layerTi + 20 ( 100~250 microns) or FeTiAtention here Roll with 10~15% alcohol/water saturation, no more. (For some reason alcohol destroy crakling star and after dry not work properly) Prime with outer prime to ensure good ignition. https://ibb.co/4msm5Rs rolled to 4mm and sorted trougt 4mm sorter fence +outer bp primem layer with mixed granulated bp 80mesh.https://ibb.co/WcDrDRphttps://youtu.be/dZoGjgRW3o8?t=108one more observation that for some unknow reasons firs day after dry stars not work synchronously. I after drying put them in a sealed container to store for a few days or longer, then stars works more beter. Edited September 8, 2023 by skysparkler Link to comment Share on other sites More sharing options...
Zumber Posted September 18, 2023 Share Posted September 18, 2023 Is it your youtube channel? Link to comment Share on other sites More sharing options...
skysparkler Posted December 5, 2023 Share Posted December 5, 2023 On 9/18/2023 at 12:24 PM, Zumber said: Is it your youtube channel? Yes it is my YT channel Link to comment Share on other sites More sharing options...
Zumber Posted December 6, 2023 Share Posted December 6, 2023 Nice videos posted over there ...thank you....!! Link to comment Share on other sites More sharing options...
PYRODK Posted December 11, 2023 Share Posted December 11, 2023 On 6/12/2023 at 02:12, skysparkler said: Vâng đó là kênh YT của tôi Can you share with me the formula of the colors you are using? Link to comment Share on other sites More sharing options...
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