mixed our own BKNO3, but it's granular not pelletized. Anybody know suppliers for BKNO3 pellets? NOT granules aka Firefox, which we already have
We spoke about this & I mention using a "pill press" for making pellets with the Firefox stuff. I make mine that way, any type of "star press' works well. Fireworks pyro's use them for making "stars" in the large motor type fireworks.
1 gram size are largest usually used. I lit P motors with 1gram pellet as recommended by CTI [Jeroen] He actually supplied that one and hence forth I've made my own.
First attempt are on right.
Now I get consistent ones like on left. Dampen granules with acetone & weigh on scale [1.5gram for me damp...after they dry completely 48hrs mine weigh 1.1g] place mix in pellet press and insert in vice crank down, remove. I coat mine with flexible nitro cellulose...hence the crusty look.
Here is a direct source for military grade pellets. {how I size mine}
Look at bottom for contact info good luck. I believe you must buy 1lb minimum. approx 450.00 or about 1.00 @ pellet. You may get off with some freebies for college experiments... never hurts to ask. If you have the Firefox stuff, it's not that hard to make them.
View attachment boron pellet copy.pdf
https://pyrotechnicspecialties.com/pyrotechnic-powders/
We discussed most of this at great length few weeks ago, but i don't think you had any BKNO3 at the time.
If you wish to further discuss "how to" call me. You should still have my #....if not PM me for it... I still have yours if you wish me to correspond.
If you have the granules....that's the exact stuff used to make the pellets [with out the binder] they use polyester resin binder with various additives depending on size & use.
.To make them correctly, you need to make large batches due to such small amount of binder 4.5% So I forgo all that & just compress and coat mine.
I am fortunate in that I acquired several lbs. before all the shipping kurfuffle .