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Sunrise yellow


Pirotex

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Name of composition: Sunrise yellow
Composition Type: Color metallic
Creator: Pirotex
Color/Effect: Bright yellow
Precedure/Preparation: Pump with water or 25% alcohol in water.

NaNO3 - 55%
Magnalium - 25%
S -10%
Charcoal (airfloat) - 5%
Dextrin - 5%

VIDEO: https://www.youtube.com/watch?v=QIY3sfNq7R0

VIDEO2: https://www.youtube.com/watch?v=BP_YMSAnI24

Edited by Pirotex
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Thanks for sharing.

Its really good looking.

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This star comp. is very popular in our club :) The sunrise yellow is beautiful star, especially with 10% titan, that one member of club use it. :)

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Pirotex and nt8,

 

Beautiful yellow stars! :)

 

What kind of primer is used on these stars?

Eric, no, no and no thanks for me! :D The star is 100% Pirotex's composition! Our club just use it, because this is amazing, bright & very impressive color! We use our club's hot prime, PIP50. (KP 50, C 15, MgAl20, redgum 10, dex 5)

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  • 10 months later...

I want to make this comp (it looks amazing btw), but I have a few questions before I make it so I don't screw it up.

 

Do I have to ballmill the comp without metals?? and If how much time?

 

Could I cut the comp or can it only be pressed?

Edited by Stef727
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There is no need to ball mill that composition.

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I tried to make these once and they ended up as puddles. The NaNO3 sucked so much moisture from the air just overnight they completely liquefied. I am guessing they should have gone in the dry box immediately.

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I never had any problem with NAN03. I bet fence post will light them.

Edited by dynomike1
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Sodium nitrate is more hygroscopic than most of it's contaminants. It absorbs water out of the air above 66% humidity at 70F, 40% RH at 85F. Maybe it's just cold where you are.

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I just ordered some sodium nitrate. These stars are beautiful!

 

Kevin

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Yeah, I tried to make them in June-July when it was mid 90's and humidity about that high...

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My sodium nitrate also absorbed moisture. I realised after making the stars when they were not lighting up. Cold and cloudy here in my city so will wait till summer now.
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Got my sodium nitrate from Duda Diesel. I'm trying these as rolled stars. I've rolled a half kilo of cores from mustard seed, and another half kilo on top of some Yankie's purple cores. The comp rolls very easily using 50% alcohol. They are in the dry box right now, and they seem to be drying normally so far. If it ever snows I'll be testing them in shells.

 

Kevin

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So I just made the stars and dryed them at 50 C and like 15h after I turned the dry box off they were already wet... You could feel the moisture in your hand and the stars break with just a hard press...

 

I'm going to dry them again and right after that put them in a double zip bag.

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