Most beautiful glitter: "Tremolant" from Zink fireworks

[Johnson]

Does anybody know "Zink Feuerwerk"? Zink is a german manufacture that is known for its premium fireworks.

They create a very beautiful glitter called "Tremolant"

 

This video shows the effect: https://youtu.be/M5NYxqFSTwg?t=39

 

Does anybody own a formula that gives this effect; or have some ideos to create a equal glitter? (how can you realise a delay as long as this?)

 

I have some ideas, but they are not practical tested:

"Tremolant" is a MgAl glitter, very high range grain sice like 100-250 µm / 140-60 mesh

Very high amount of delay agent (maybe sodiumoxalate)

Maybe Sb2S3 based

 

As i sad, my ideas are not practical testet and i am the opposit of an glitter expert, so they can fundamentally wrong.

I'm very excited about your ideas.

 

Picture:

Edited August 12, 2021 by Johnson

[yannismanesis]

This does seem a bit too noiseless for MgAl. MgAl sizzles and pops, especially in glitters.

[justvisiting]

That looks very much like Pirotex's slow gold glitter, which uses magnalium and sodium nitrate. He specified 50-70 mesh magnalium, and that's what I used. I'm no expert either, but this might be a good starting point for you. There is a thread about his glitter here somewhere on this forum. He has a YouTube channel.

EDIT: Here is the thread where he introduces it.

 

https://www.amateurpyro.com/forums/topic/12165-long-lasting-gold-glitter/?view=findpost&p=165882&hl=%2Bsodium+%2Bnitrate+%2Bglitter

 

All the videos are unavailable. I haven't been able to link to my newer video of it, maybe because of YouTube's recent changes. My channel is Pur Saveer and you can see it there if you want. My little videos never had ads before, but now they do

Edited August 12, 2021 by justvisiting

[kingkama]

I think this glitter works on Charcoal and alluminium, Sb would yield whitish sparks MgAl sizzling sound and aggressive spritzel. Delay i think is a sodium salt like oxalate that give off the long lasting effect and the golden color, theoretical this could be the ingredients, but the proportion of the same, the sulfur content, the moisture, the charcoals kinds, the size and the works procedures, It is the unknowns that produce the final result as seen in the vid.

[JeyJey]

Very nice effect Edited August 12, 2021 by JeyJey

[Johnson]

Thanks yannismanesis and kingkama, thats a realy good point: It's to noiseless for MgAl.

Is it Al instead of MgAl? I thought that Al glitters are way more "fine".

Zink also has an effect called "Leuchtkäfer" and i think thats a Al Glitter, shown here: https://youtu.be/v_ayp-WpKfQ?t=10

 

But again: this thougt can be fundametally wrong. What is the grain sice of the Aluminium?

 

@justvisiting hey it can be possible, NaNO3 based glitter. I'm asking myself if NaNO3 based stats are

suitable for industry (because hygrodcopy). Some people stores "tremolant" rockets for many years and they work pretty good, even after many years of storage.

 

Once again the idea with Al: Is it possible to be an Mg based glitter?

I have no experience with Mg based glitter at all, are they noiseless like Al or noisy like MgAl?

[justvisiting]

I could be wrong on the formula, for sure. The deep gold is what made me think of that glitter. As far as the crackling goes, do you guys think you could hear it from hundreds of feet away? I can't. I think a manufacturer would be just as hesitant to use magnesium as sodium nitrate.

[mabuse00]

I would totally rule out NaNO3. Under normal central european climate conditions stars would turn to mush. Once I had some PVB bound stars turning totally wet, they kept their structure but otherwise had the apperance of wet liquorice... So a non aqueous binder alone would not seal them.

 

Military flares have aluminium shells, guess why...

 

 

 

As far as the crackling goes, do you guys think you could hear it from hundreds of feet away?

That's my feeling too. It depends on the camera, maybe if the microphone is really good...?

Imho magnalium cannot be excluded...