lokys Posted January 10, 2010 Posted January 10, 2010 Hy.. maybe somebody know how to make silver streamer? without Titanium.. with aliuminium or others metals.. thanks..
TheEskimo Posted January 10, 2010 Posted January 10, 2010 A simple search, via Google, or APC, would have unearthed some comps. This would be a good question for the newbie section, due to this section only for actual compostions, rather than requests.http://pyroguide.com/index.php?title=Silver_Starshttp://www.apcforum.net/forums/index.php?showtopic=593http://www.apcforum.net/forums/index.php?showtopic=44Adding any coarse metal to a BP comp is virtually gauranteed to add white/gold sparks.
dagabu Posted January 10, 2010 Posted January 10, 2010 Hy.. maybe somebody know how to make silver streamer? without Titanium.. with aliuminium or others metals.. thanks.. Sure! I have 6 without Ti, what chems do you have? Potassium Nitrate 46 Charcoal, Pine, 20-30m 44 Magnalium, granular, 30-60 mesh 10 Sulfur 6 Manganese Carbonate 3 Dextrin 4.5 This is in parts, not weight though it is the same as long as you don't expect it to come to 100%. This is also known as Falling S*** on You. (mot my name)
dagabu Posted January 10, 2010 Posted January 10, 2010 Adding any coarse metal to a BP comp is virtually gauranteed to add white/gold sparks. True that but I think he is looking for something that hangs for a while? Manganese Carbonate or Barium Carbonate are needed to slow the burn so the streamers can hang for a while.
TheEskimo Posted January 10, 2010 Posted January 10, 2010 Since he mention "silver streamers w/out Ti", I assumed that he meant a silver streamer, not a brocade/glitter effect. I think he's aiming for a bright, flashy star, like http://www.vk2zay.net/composition/13, rather than the effect that you suggested. Lokys--clarification?
Mumbles Posted January 10, 2010 Posted January 10, 2010 One of the simplest ones is a modified silver wave from Shimizu Perc - 50Bright flake Al - 40Red Gum or Shellac - 10Dex - +5% Bind with wheat paste From there you can experiment with subbing in coarse Al, dark flake, and atomized Aluminums to modify the tail length and handling characteristics.
lokys Posted January 10, 2010 Author Posted January 10, 2010 (edited) I have not so many chems: KlCo3, Potassium Pechlorate, CuO, BaNo3, Red gum, Pvc, parlon, Strontium nitrate, strontium carbonate,Kno3, S ,C. (I don`t have Manganese Carbonate). for metals: Mg 116 microns , Aluminium Atomized 300-400mesh, mgal 200mesh, Al flake( 1200 mesh, 600mesh ), Al (big particles).. potasium pechlorate is very expensive for me, I used it for flash, which useing like booster in shell and for color stars.. I want silver streamer with KNO3, because it is cheap for me, and I think for everyone. Maybe to me need Titanium, it is very practical metal.. but it is expesive, but in compositions Ti need not a lot of % . any way.. thanks.. I try Bp+metals (mg,or al atomized) and others yours proposed stars.. Now just need to test .. Lokys - means, BEAR in Lithuania.. Edited January 11, 2010 by lokys
swervedriver Posted January 10, 2010 Posted January 10, 2010 Here's some nitrate based comps I think make nice white tails, wet with 5% boric acid solution- White star #1 (I had to cut these)Potassium Nitrate 58Aluminum 40Dextrin 2 Better Pearl (rolls nice)Potassium nitrate 47Barium nitrate 10Sulfur 18Charcoal 10Aluminum (Atomized) 10Dextrin 5 You didn't mention Antimony Trisulfide in your list, but I really like this comp as a streamer rolled over color cores- BaNO3 Modified Winokur #12 (rolls nice) Potassium Nitrate 55Charcoal airfloat 11Sulfur 8Dextrin 4Barium nitrate 3Antimony trisulfide 5Aluminum atomized 400 14
Mumbles Posted January 10, 2010 Posted January 10, 2010 The formula Dapaki posted had barium carbonate in it originally. I'm not sure where the manganese carbonate thing came from. Any carbonate would work here with different effects though. I found a few formulas for you. Try replacing the titanium in them with your coarse Aluminum. It makes a nice long hanging effect. Try substituting in the atomised for the bright flake. Posted by John Reilly on rec.pyro on 12/9/06 Meal-d 27%Pine charcoal dust 22%Potassium Nitrate 19%Aluminum "bright flake" 350 mesh 18%Titanium 40-80 mesh sponge 9%Dextrine or Rice Starch 5% Damp with water and prime well. Aluminum Streamer from R.S.J.N from AFN Potassium Nitrate - 51Atomized Al -325mesh - 22MgAl 200 mesh - 8Ti - 8Airfloat Charcoal - 5Red Gum - 5 I would have a hard time believing that RG is supposed to be the binder. I think it may have been designed to be wet with gum arabic, but you could just add 5 parts dextrin or something in there too. Bright Streamer (sorry, don't have the source) Meal - 67Bright flake Al - 17Barium nitrate - 9Dextrin - 7 Bright Silver Ti - Ken Kosanke KNO3 - 64C - 13S - 9Ti - 9Dex - 5
dagabu Posted January 10, 2010 Posted January 10, 2010 The formula Dapaki posted had barium carbonate in it originally. I'm not sure where the manganese carbonate thing came from. Any carbonate would work here with different effects though. Yup, we have been hashing over this one over elsewhere for a while and I went and picked up some manganese carbonate and tried it at 1/2 the rate of barium carbonate and subbed Dextrin for Starpol. They aint kidding, S*** Falling on You. I pressed this as the top increment of a fuse powder rocket today and will will shoot it as soon as I can feel my toes again (COLD!) I found my video camera so if it doesn't suck, I will post the launch. This is a first with this fuel.
lokys Posted January 11, 2010 Author Posted January 11, 2010 thanks for all.. I would test this compositions. This composition I have tested: Better Pearl (rolls nice)Potassium nitrate 47Barium nitrate 10Sulfur 18Charcoal 10Aluminum (Atomized) 10Dextrin 5 This is like Glitter, but nice effect. I like it.In another place of this forum, this composition named: silver streamer.. but it is Glitter.
Bonny Posted January 11, 2010 Posted January 11, 2010 True that but I think he is looking for something that hangs for a while? Manganese Carbonate or Barium Carbonate are needed to slow the burn so the streamers can hang for a while. Doesn't adding the carbonate for delay change it into more of a glitter than a streamer? I though streamers leave a tail of buring metal/charcoal, rather than delayed flashes...
Recommended Posts