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Flash Powder Problems!!!!! Answered

Every time I use flash powder from firecrackers to try to make a big one all it does is burn up. No matter how hard I try to compress the flash powder all it does is burn up when it is supposed to blow up. Any tips?

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Desiato
Desiato

5 weeks ago

Hi everyone I started making flash powder 15 years ago and was taught by a chemist that worked at Remington. He was my answer key until he left us. I do not to make it for any one but myself I don’t want the liability on me if someone is careless. So a friend tried making it a few times and it was fine. Until he called and said it won’t light. So I went to check it out. The color was right. Just the texture was different it was heavy and not fluffy and dusty like baby powder. I saw the packages the oxidizer was correct and the right mesh. The aluminum was 30 micron instead of 5 or smaller. 😲 I don’t have the answers for this if it’s fixable possibly add more aluminum? Of scrap the mix that was made?

Thanks Louie

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randyclark747
randyclark747

5 years ago

So what you are saying is it just goes poof instead of boom, right? You first off can't have any leaks in your container you are using as casing. Then there has to be a seal at all points, including were your wick goes in. Don't use cheap paper firecracker fuse. Use green safety fuse, or you are liable to blow your hand off. You should not be peeling apart firecrackers anyway to salvage flash powder. Make your own, it is much safer. Then, when you make a casing, have no leaks; that is my best advice. Take it from a retired pyro.

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Jaycub
Jaycub

10 years ago

You should make your own if you want it to be very powderful. Try a mixture of plaster of paris (calcium sulfate) and magnalium powder (make by melting equal weights of aluminum and magnesium together in a container with a lid) in a ratio of 3:2, then add about 1/4 part sulfur. The sulfur seems to drasticaly increase the burn rate.

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echelon3
echelon3

11 years ago

download the anarchists cookbook from somewhere or go to totse.com. I wouldn't recommend trying to put a lot together tho.

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westfw
westfw

11 years ago

Don't "compress" flash powder. It should be loose and fluffy. In large salutes, it's pretty common to add a "bulking agent" (rice hulls, popcorn, etc) to keep it from settling too much... Try to keep your fingers; a modern 50mg flash cracker is a miracle of optimization; Bigger isn't necessarily good for anything other than more destructive power, which ought not be the point of fireworks, IMO.