When the Apex Formula pdf (http://pyrobin.com/f...ex Formulas.pdf) first was uploaded there was alot of discussion about the chinese star formulas within the community.
Many people said that the formulas were either wrong or intentionally altered by the chinese.
I remember that the "time rain" composition was often mentioned because it seemed to be so unlikely to work.
This is the composition I'm talking about:
Now while this formula sort of looks like a crackling formula which is missing at least on major ingredient I actually never really saw it as a crackling comp.
It's called "Time rain" after all.
A quick youtube search for "Time rain cake" and you'll see what the "Time rain" effect is supposed to look like.
It seemst to be a mix between crackling and glitter. There is definitely some crackling but the stars rely on visual rather than accoustic effects.
I thought why not try it and here are my results:
I prepared the stars like normal crackling micro stars.
MgAl and CuO was screen mixed and the titanium mixed in later. I bound with NC and made some micro stars by ricing the star composition through a screen.
The resulting micro stars were very hard to light.
So I primed them with fencepost prime + 7 % red gum and finished of with a layer of green mix.
After the micro stars were dry I prepared some matrix stars using Hardt's Dragon Egg Matrix.
The composition actually does crackle! It's not as loud as a real crackling composition but it was mouch louder than I expected it to be.
Video of one 10 mm matrix star lit on the ground
Video of three 10 mm matrix stars shot from a 20 mm paper tube
Edited by Adrenaline, 18 March 2016 - 03:41 AM.