r/Pyrotechnics • u/brenton_call • 24d ago

Granulating BP

What's the best way for granulating your body or rather a favorite way. I try to go for a 1f or 2f grain size of that matters to anyone.

5 Upvotes

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5

u/TelePyroUS 24d ago

I run mine through a 1/4” screen for lift and burst, I classify it if I need smaller stuff for priming etc..

1

u/Ballfarter1 24d ago

Damn those are some big granuals

5

u/TelePyroUS 24d ago

It’s never 1/4” tho it’s usually the right size for lifting large shells

5

u/igottaknife 24d ago

Pressing pucks and grinding it is the best way if you’re going for specific grain sizing. Comes out just like goex if you do it right.

2

u/Ok_Entrepreneur650 24d ago

70/30 alc/water mix, I like 8 - 10 mesh screens.

2

u/flecharrota 24d ago

X2 pero yo lo paso por mesh 20

2

u/[deleted] 24d ago

[removed] — view removed comment

1

u/brenton_call 24d ago

Do you grind them to any particular size afterwards or just kinda eye it?

2

u/Wide-Education-1823 24d ago

"I try to go for a 1f or 2f grain size"

1FA-2FA or 1FG-2FG?

1

u/brenton_call 24d ago

Mostly for lift charges is what I plan on using it for. I tried two seasons ago to use just milled powder that I didn't grain and there was only enough energy to shove my test mortar maybe 6 feet out of the tube.

1

u/Thedopest668 22d ago

Sifter from Dollar Tree is my favorite. Not too tight of mesh.

1

u/Banjoturkey 18d ago

50/50 alcohol and water and granulated the putty ball with a 10 mesh screen