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Monocapa prime comp adjustment

Prime mix

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#1 fieldworker

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Posted 12 November 2022 - 03:25 AM

Hey folks, I dont have access to Kperchlorate or chlorates as it is banned in our country and Im not even planning to make some with electrolysis, so i have Knitrate,Banitrate,Srnitrate as oxidisers in my hand. Thats why i want to change or adjust the monocapa prime mix with the selected oxidisers that I have in my hand. Apart from that black iron oxide is also very hard to find here. So what should I use in place of Kperchlorate and black iron oxide, Im planning to replace Kperchlorate with Banitrate(not sure about the amount suggestions will be much appreciated) and what I should use in place of black iron oxide. Thanks

Monocapa prime comp:

24.6 Potassium perchlorate
31.1 Potassium nitrate
11.5 Charcoal (air float, Willow or Paulownia)
4.1 Red gum
4.9 Sulfur
7.4 Iron Oxide (Black)
12.3 Magnalium (230 mesh, or dark aluminium)
4.1 Dextrin

#2 fieldworker

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Posted 15 November 2022 - 12:06 AM

bumping this thread



#3 Peter

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Posted 15 November 2022 - 04:36 AM

My suggestion is to try Fence Post prime instead. Optional after priming is to roll/shake the stars in some hand sieved BP.

#4 a_bab

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Posted 15 November 2022 - 07:09 AM

You can also use a meal + silicon prime. 10-15% silicon would ignite reliably about any composition.
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#5 fieldworker

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Posted 15 November 2022 - 07:35 AM

Well i just wanted to know that if I replace perchlorate with barium nitrate will it work?

#6 Arthur

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Posted 15 November 2022 - 12:29 PM

Subbing 25% of a comp is going to change it's performance. Do a lot of tests at a safe distance and tell us all how big that change is. 



#7 mabuse00

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Posted 15 November 2022 - 01:16 PM

I don't think this would work. The formula is developed with perchlorate. Also barium nitrate is a much more sluggish oxidiser. If you have no perchlorate, you have to develop a new formula. Or just use meal + metals, as posted above.
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#8 davidh

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Posted 15 November 2022 - 01:40 PM

Use step priming.



#9 fieldworker

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Posted 16 November 2022 - 12:03 AM

ok thanks for the suggestions I will try once with barium nitrate and will post the results and comp here, I have also other things planned so it may take some time.



#10 VikingPyrotechnics

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Posted 28 November 2022 - 04:44 AM

As  a_bab said, BP + Si will ignite almost everything. Even when it is broken pretty hard ! 






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