VikingPyrotechnics Posted October 9, 2013 Posted October 9, 2013 Hi guys, i´m searching for some good blue ( copper carbonate based ) und orange ( calcium carbonate based )star formulas.??!! Would be happy if anyone can give me a nice formula! Thank´s in advance VP
mabuse00 Posted October 9, 2013 Posted October 9, 2013 Concerning blue with copper carbonate: Shimizu Blue 1: Potassium perchlorate.............................60.8Red Gum...........................................9.0Basic copper carbonate............................12.3Parlon............................................13.1Soluble glutinous rice starch.....................4.8 Swap the perchlorate for chlorate.
NeuroticNurse Posted October 9, 2013 Posted October 9, 2013 Is it possible to use a lower proportion of PVC powder rather than Parlon?
Mumbles Posted October 9, 2013 Posted October 9, 2013 I'm a big fan of Shimizu B70. It was originally made with copper (II) carbonate. Through an internet transcription error, it was distributed with copper oxide instead. It works equally well with both copper sources. Potassium Perchlorate 63.8Parlon 13.8 Copper(II) Oxide, black 12.9Red Gum 9.5 Dextrin 4 Tare: Total: 104 When using chlorates, it's very easy to reduce the amount of chlorine donor used. Chlorate readily gives up it's chlorine, so not as much auxiliary Cl is needed. There are trick to making this happen with perchlorate too. Below is one of my favorite chlorate blues. Again, it works pretty well with either the oxide or carbonate. Potassium Chlorate ........ 64.5 %Red Gum ................... 9.9Cupric Oxide .............. 13.4Parlon .................... 5.4Charcoal .................. 2.0SGRS (Binder) ............. 4.8
LambentPyro Posted October 9, 2013 Posted October 9, 2013 (edited) I'm a big fan of Shimizu B70. It was originally made with copper (II) carbonate. Through an internet transcription error, it was distributed with copper oxide instead. It works equally well with both copper sources. Potassium Perchlorate 63.8Parlon 13.8 Copper(II) Oxide, black 12.9Red Gum 9.5 Dextrin 4 Tare: Total: 104 When using chlorates, it's very easy to reduce the amount of chlorine donor used. Chlorate readily gives up it's chlorine, so not as much auxiliary Cl is needed. There are trick to making this happen with perchlorate too. Below is one of my favorite chlorate blues. Again, it works pretty well with either the oxide or carbonate. Potassium Chlorate ........ 64.5 %Red Gum ................... 9.9Cupric Oxide .............. 13.4Parlon .................... 5.4Charcoal .................. 2.0SGRS (Binder) ............. 4.8 Is the SGRS interchangeable with Dextrin? Veline Yellow looks much like Orange, give it a try VP:http://www.youtube.com/watch?v=RWgJZ4nWQ6Y Edited October 9, 2013 by LambentPyrotechnics
pyrokid Posted October 9, 2013 Posted October 9, 2013 I have a real nice orange formula that I'll have access to on the weekend, I'll post it here.
Seymour Posted October 9, 2013 Posted October 9, 2013 I suggest replacing strontium with calcium in your favorite carbonate red. As such, "Buell Orange" may be a popular option.
Shizznt Posted October 10, 2013 Posted October 10, 2013 Orange Blue Calcium Carbonate 15 Copper oxide, black or copper carbonate 15 Potassium Perchlorate 55 55 Parlon 15 15 Red Gum 9 9 Magnalium (50/50 -200 mesh) 6 6 Dextrin +4 +4 +4 I just rolled these stars this week and they worked well in the star gun, but I'm gonna test them in some shells next week.
Shizznt Posted October 10, 2013 Posted October 10, 2013 Orange Bluecalcium carbonate-15 copper oxide black or copper carbonate-15potassium perchlorate- 55 potassium perchlorate-55parlon-15 parlon-15 red gum- 9 red gum-9magnalium- 6 magnalium-6dextrin-4 dextrin-4
VikingPyrotechnics Posted October 10, 2013 Author Posted October 10, 2013 Hi guys, I have now tested B70 and Veline. (Veline with copper carbonate) Both were very pale? But I am looking for a nice deep blue. Is it at all possible with carbonate? For Orange, I now get a few formula together, and will test a bit. And thanks again for your help
fredhappy Posted October 10, 2013 Posted October 10, 2013 viking: Don't be fooled by the pale colour of B70 when you do a burn test. When used in shells a very pretty deep blue will occur. Burntests with colours on the ground always give a false sense of how the colour will look. I love B70 and have made a couple of kilos of 6mms for use in inserts .A very nice deep blue. best fred
VikingPyrotechnics Posted October 10, 2013 Author Posted October 10, 2013 Thank you Fred for the info I make a rocket with it and see how it turns out ....What do you think about the blue from that spanish PDF?? Greets
mabuse00 Posted October 10, 2013 Posted October 10, 2013 Burntests with colours on the ground always give a false sense of how the colour will look This is very important. Blue bengalos are allways kind of white, until you are really far away. Is it at all possible with carbonateI think the critical thing is not only the copper source, but also the fuel.Most formulas are developed to work together with other stars, which are usually metal fueled and naturally much brighter. So to give the blue a chance to be noticed at all, it also needs a certein brightness. Some are redgum fueled, some use hexamine or even some MgAl, like the formulas from the spanish PDF.But you can get better colour saturation if you make it cooler. I feel "bluest" blues are lactose fueled, like 50AEs lactose/oxychloride based composition. In a dark night with no moon an no other fireworks stuff in the air, just the blue stars, and your eyes adapted to darkness, voila, they are unbeatable!
VikingPyrotechnics Posted October 11, 2013 Author Posted October 11, 2013 That´s right mabuse .... Yesterday i filmed the stars with a camera, and it looked much better So let see what it do in a shell
Seymour Posted October 11, 2013 Posted October 11, 2013 (edited) Is the SGRS interchangeable with Dextrin? Yes Edited October 11, 2013 by Seymour
fredhappy Posted October 11, 2013 Posted October 11, 2013 (edited) viking; I love the blue no 1 from the spanish document. It is a light pastel blue. But...beauty is in the eye of the beholder. A friend who saw a shell of mine with the blueno1 told me to his eyes that blue was "washed out"...hehe You see my point, the interpretation of the colour blue is a highly personal thing. I have bought some 63 micron copper powder. The author of the Spanish document told me the blueno2 with added copper powder gives the best blue. I will try this blue in the future. For now I have a whole load of 6mms "pyro science' blue, I will test those asap in a shell . But to my eyes b70 is a very pleasing deep blue. The only downside is that it is an organic blue. This means the colour is hard to distinguish when you combine it with metalic stars in a shell. For instance, metal red peony with a B70 petal is nice, but the B70 appears a bit dim due to the bightness of the red formulae..you catch my drift? I have to say I quite like the hexamine blues. Some metal(mg/al) can be added to these formulaes and this brightens up the star a bit, which personally I like. Stick with B70 and you can't go wrong, keep in the back of your head the limitations of using organic blues. But you have to appreciate the deep blue colour tone of B70... good luck , fred Edited October 11, 2013 by fredhappy
leedrill Posted October 11, 2013 Posted October 11, 2013 is there a good metalic blue with lactose as the fuel in circulation i cant seem to find one
LambentPyro Posted October 11, 2013 Posted October 11, 2013 (edited) Hi guys, I have now tested B70 and Veline. (Veline with copper carbonate)Both were very pale? But I am looking for a nice deep blue.Is it at all possible with carbonate? For Orange, I now get a few formula together, and will test a bit.And thanks again for your help Viking, use Veline Yellow, the results come out Orange, give it a try man. is there a good metalic blue with lactose as the fuel in circulation i cant seem to find one Make one up. Edited October 11, 2013 by LambentPyrotechnics
Recommended Posts