13 replies to this topic

[Bonny]

I've seen videos of factories in China priming stars (in a roller) with slurry.
Has anyone tried this method for priming? I make mainly cut stars and think it would be very easy to shake them in a bag or bowl with slurry, versus misting and sprinkling powder, much of which falls off.
I was also thinking of doing KClO4 stars like velines etc with this method using a veline style prime as a slurry, then simply shaking meal D or whatever as final layer.

[chris17]

http://pyrobin.com/files/1_1.wmv

That clip was originally found on youtube, but leosedf uploaded it to pyrobin too. It has a segment which shows very well how stars can be primed with slurry using two round bowls. I personally prime all my hard lit stars in the same manner. Seems that the prime gets into all pores of the stars and provides a reliable fire transfer. It might take few times to get the consistency and amoutn of slurry right for a given amoutn of stars, but I've found it to be worth it.

Edited by chris17, 09 June 2008 - 01:29 PM.

[leosedf]

Torro paste. I tried it recently and it was a lot better to roll or prime stars.
I even made 4-5mm cut stars and used torro paste to prime and then roll. Very nice result.

[dr thrust]

whats torro paste?

Edited by chris m, 07 June 2008 - 06:37 PM.

[pudi.dk]

It's basically using slurry to roll instead of solvent.
Just a fancy Japanese word for it!

Edited by pudi.dk, 07 June 2008 - 08:37 PM.

[bigtonyicu]

does anyone have a torro paste formulas?

[leosedf]

Yeap.
Its the same formula you use for your stars.
That's basically it, keep some of your comp, use a lot of solvent and try to keep the viscosity of wheat paste or even thinner.

[Bonny]

Yeap.
Its the same formula you use for your stars.
That's basically it, keep some of your comp, use a lot of solvent and try to keep the viscosity of wheat paste or even thinner.

How would using the same formula work as a prime? I may be wrong, but if a star comp lights easy enough to use as prime, it wouldn't need priming..

[leosedf]

Sorry i ment for rolling stars.
In case you want to prime make some of your priming comp a slurry and use it to coat the stars, then use dry priming comp and it will stick on the stars.

[portfire]

Shimizu says toro paste is the star comp itself. Starting with cube core's, and adding the paste, then dry comp, and repeating the process, adjusting the viscosity of the paste as the stars grow.

[Bonny]

Shimizu says toro paste is the star comp itself. Starting with cube core's, and adding the paste, then dry comp, and repeating the process, adjusting the viscosity of the paste as the stars grow.

So the toro paste is actually the star and not really a prime layer? In any case, I guess once, for example cut stars are made and dried, they can be rolled in a slurry prime...
OR, starting with cores, could be rolled larger using toro paste and then (if necessary) dusted with dry prime as last step.

[KarlosH]

I use torro for making stars every time. Stars are better than with spray technology, have higher density. Torro must have optimal consistence. For small rape seeds must be slop, for 4 - 5mm more dense.
http://img03.picoodl...tem_a1b3103.jpg
http://img03.picoodl...rom_5fe5d98.jpg
http://img02.picoodl...rom_f3f40d3.jpg
http://img03.picoodl...nxm_6bca5d1.jpg

Bye.

[MDH]

Could one go about spraying a black powder solution onto a bed of stars through some sort of low quality squirt gun or the likes?

[bigtonyicu]

Could one go about spraying a black powder solution onto a bed of stars through some sort of low quality squirt gun or the likes?

Theoretically yes... but it would be very messy. As long as the composition is fine enough I don't see a problem with it.. it's basically the same thing as spraying a flake or a pearl finish on a car (powder suspended in a liquid). The biggest draw back I can think of would that the gun would have to work with compressed air, I fear the exhaust port would cause a lot of the powder to float out of the star roller (suspended in the air current) coating all your surroundings with a nice, highly flammable layer. but possibly something worth trying outside

Because of the high air flow the coating would dry just about instantly making for very fast drying time post rolling. Essentially it's the same technique use to coat pills they just rely on a sugar and gelatin mix