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Question about whistle mix.


BillyBobBodean

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As I've stated before, I have built quite a few 3", 4", and even a couple 6" ball shells. I have always used BP coated rice hulls for my shell breaks. I am comfortable when assembling the shells as far a friction and pressure is concerned when using BP, I take all precautions. I am now wanting to build smaller 1 3/4 shells (trying to get away from commercial fireworks completely) and am wondering about the break charge in such a small shell. I am not ready for flash powder, but am wondering about whistle mix (70% potassium perchlorate, 30% potassium benzoate) added to the break. Just how sensitive is "whistle mix" to friction/pressure when adding to a shell? Thanks!

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Just keep in mind that any of the compositions are friction and impact sensitive, use caution, don't over do it and wear PPE. Whistle is common in shells as a booster.
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