Blue Stars
#1
Posted 28 March 2003 - 06:35 PM
#2
Posted 28 March 2003 - 10:12 PM
Potassium Chlorate 65%
Red gum 6%
Copper carbonate 14%
Parlon 10 %
Dextrin 5%
Bind with 75%water 25%alchole(methanol or dentuared alchole)
These will roll up in to very nice round stars and for example if using in a 5" shell roll to 9mm leave for 1 day to dry then following day size to 14mm and prime to 15mm with H3 (H3 being the prefered prime to avoid cross contamination of the strar mix i.e don't use bp because of its sulphur content) then leave for 3 days to completely dry.
#3
Posted 29 March 2003 - 12:09 AM
#4
Posted 29 March 2003 - 12:49 AM
any help a be great
Nick
#5
Posted 29 March 2003 - 10:02 AM
they sell,
copper carbonate(blue)
strontium carbonate(red)
barium carbonate(green)
they alo stock grog and bentonite 50/50 mix for making plugs and chokes.
#6
Posted 29 March 2003 - 11:05 AM
#7
Posted 29 March 2003 - 11:59 AM
You are able to a degree to substitute the parlon to pvc. However Stars bound with pvc to tend to be a little on the brittle side,also if you go to far with the pvc you can end up with the colour being washed out with the ash that pvc uses.
I have used the above formula but modified as I think Mr Brocade has made a mistake writing down copper carbonate. Looking at the formula as written it would not work,due to using the carbonate. I think that it should be an oxide if I am correct
The Best Blue available [which is used by several american pyro clubs] uses :
Potassium perchlorate
Ammonium Perchlorate
Copper carbonate
Red gum
Dextrin
This will give you a high density Blue with good fullness of colour. this formula will only work with Ammonium Perchlorate due to the compound of Copper Carbonate. What ever you do you will have little success if you use a fuel that is hot burning. It must use a cool fuel such as Red gum or Lactose. It is also worth noting all though Parlon is not available in the uk, It is a far superior Chlorine donor than pvc. I have tried pvc that you can get in the uk and it is not the same as the correct pvc that is available from other sources.this is very noticable in the finished stars.
#8
Posted 29 March 2003 - 05:34 PM
Potassium chlorate 65%
Copper Oxide 14%
Red Gum 7%
Parlon 9%
Dextrin 5%
Rob although I generally agree with what your saying about blue star formulas I do not agree Copper carbonate cannot be used to produce a reasonable blue copper carbonate used with perchlorate as the oxidizer will give an acceptable blue please note this blue will not be as rich a blue as the formula presented above. Copper carbonate formula as follows.
Pottasium perchlorate 65%
Red gum 6%
Copper carbonate 14%
Parlon 10 %
Dextrin 5 %
Both formulas as presented bind with 25% alchole 75% water.
Parlon and pvc I get from the USA as I have tried pvc from a source in the UK this pvc proved to be of dubious quality and would not work in any of the formulas I use I therefore found a source in the USA and this has proved to be good quality pvc & parlon.
#9
Posted 29 March 2003 - 06:58 PM
We will have to meet up some time and have a competion. Its sound like you really know what your doing, and to a high standard from the way that you write. Its so good to be able to discuss pyro on this level.
#10
Posted 30 March 2003 - 04:38 PM
#11
Posted 30 March 2003 - 05:11 PM
#12
Posted 30 March 2003 - 06:44 PM
#13
Posted 30 March 2003 - 06:49 PM
#14
Posted 05 April 2003 - 07:12 PM
#15
Posted 05 April 2003 - 09:40 PM
Maybe we can try one of these when we shoot some pyro at your site in the comming weeks
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