vladou Posted December 5, 2009 Share Posted December 5, 2009 (edited) Hello, I'm not sure about what metal to use with BP meal in farfalle composition. I have 325mesh bright flake aluminium, 300-400mesh atomized sperical aluminium, 60-200mesh iron, 116microns magnesium and 70microns magnalium. Can somebody help me ? (I don't think my metals are coated and I don't have and don't want to use neither boric acid nor K dichromate) (mmh, wrong place, sorry) Edited December 5, 2009 by vladou Link to comment Share on other sites More sharing options...
Karlos Posted December 5, 2009 Share Posted December 5, 2009 Bright flake aluminum will be better than others. I tryed atomized, but composition was high speed and hat small quantity of nice sparks. Sparks of magnalium hawe shorter durability. I dont know how much, I used 10% of Aluminum and composition was faster than 20% in BP.Maybe 10 is sufficient. ...???? Link to comment Share on other sites More sharing options...
FREAKYDUTCHMEN Posted December 5, 2009 Share Posted December 5, 2009 Titanium, 30 to 100 mesh will do. Link to comment Share on other sites More sharing options...
Ventsi Posted December 5, 2009 Share Posted December 5, 2009 Other than the Ti, MgAl and Spherical Al would be your best choices , in my experiences the Bright flake burns too fast and doesn't give any sparks, just a white flame. Link to comment Share on other sites More sharing options...
Mumbles Posted December 5, 2009 Share Posted December 5, 2009 I do believe that all of your metals are far too fine to be used in this effect, sorry. Traditionally it is iron that is used, but Ti and FeTi are far more common currently. The iron you have might be okay, but is on the finer side of things. Perhaps if you have the means to screen out everything passing 100 mesh. Link to comment Share on other sites More sharing options...
vladou Posted December 5, 2009 Author Share Posted December 5, 2009 Karlos, I think I will go with 15%. Freakydutchmen, I don't have any Ti.Ventsi, don't you think that my atomized Al and MgAl are too fine ? What would you choose ?Mumbles, I didn't know that iron was traditionally used. It will do gold sparks right ? Yeah, I could pass it through my 120mesh screen. Link to comment Share on other sites More sharing options...
Twotails Posted December 6, 2009 Share Posted December 6, 2009 I think mumbles means you want the iron corser than 100 mesh? Link to comment Share on other sites More sharing options...
Mumbles Posted December 6, 2009 Share Posted December 6, 2009 Yes I do, but still the process is the same. It just matter what side of the screen you take it from. Link to comment Share on other sites More sharing options...
vladou Posted December 6, 2009 Author Share Posted December 6, 2009 (edited) Of course, I'd take what would stay in the screen. But what metal I have do you think will make the most beautiful effect ? Edited December 6, 2009 by vladou Link to comment Share on other sites More sharing options...
Ralph Posted December 6, 2009 Share Posted December 6, 2009 i think most people would say Titanium because it has bright long lasting sparks Link to comment Share on other sites More sharing options...
Klaaskroegbaas Posted December 6, 2009 Share Posted December 6, 2009 I used 10% 250 mesh aluminium and 10 % 45-150micron aluminium in this shell. Worked pretty good. Link to comment Share on other sites More sharing options...
psyco_1322 Posted December 7, 2009 Share Posted December 7, 2009 That was a very nice shell! Link to comment Share on other sites More sharing options...
vladou Posted December 7, 2009 Author Share Posted December 7, 2009 Thank's Klasskroegbaas. I already saw it. It was a beautiful shell. I think I will go with 15% Mg since it's my corser metal and I'd like a whitish/silver effect.. But my Mg is not coated.. Will it react with my meal powder ? Link to comment Share on other sites More sharing options...
psyco_1322 Posted December 7, 2009 Share Posted December 7, 2009 Yes, the nitrate in the meal will eat at the magnesium. Its not something you will want. The bright Al would give a Reaper Silver looking farfalla. The iron might also work if you want a orange-gold look. The magnalium would likely add a interesting crackling noise to the devices, along with a short spray of brightish sparks. Link to comment Share on other sites More sharing options...
vladou Posted December 7, 2009 Author Share Posted December 7, 2009 Mmh.. so the best could be MgAl ? Link to comment Share on other sites More sharing options...
psyco_1322 Posted December 7, 2009 Share Posted December 7, 2009 Maybe... With the ease of making them, and the little time it takes, just make a few different ones. Separate out some 10g batches for meal and add various metals to them, maybe mix some metals to combine effects. Leave the Mg out of the testing. Go stab a stick in the ground outside, tape the Farfalla to it, light and watch. Find out what will work via experiment. Link to comment Share on other sites More sharing options...
Klaaskroegbaas Posted December 8, 2009 Share Posted December 8, 2009 I agree with psyco_1322 uncoated magnesium is very unsafe to combine with meal powder. I should use the aluminium powder. Or buy some titanium sponge. Link to comment Share on other sites More sharing options...
vladou Posted December 8, 2009 Author Share Posted December 8, 2009 Well.. 70 microns MgAl or 300-400mesh atomized spherical aluminium ? (I tried wioth Mg, it was nice but yes.. unsafe) Link to comment Share on other sites More sharing options...
psyco_1322 Posted December 8, 2009 Share Posted December 8, 2009 vladou, Sometimes you actually have to buy some more stuff to make different items. What you need to do is go order some appropriate Ti for the effect. You will also be able to use it in a lot of other things, so its good to have around. If not, go do some testing, find out which one of those metals you like the best. Link to comment Share on other sites More sharing options...
Twotails Posted December 8, 2009 Share Posted December 8, 2009 There is the possability to use a couple diffrent farfalle inserts, is there not? arranged in a pattern maby?(Like orange, then silver, repeating untill you have your Six(?) inserts?) Or make a few, and see what you like best. Link to comment Share on other sites More sharing options...
vladou Posted December 9, 2009 Author Share Posted December 9, 2009 Mmh.. Psyco, I don't have enough time to buy some Ti before new year. But I'm sure I could use something else like atomized aluminium or even magnalium. Of course the effect will not be more beautiful than Ti. I will give a try with Al and MgAl. (oh, and don't call me vladou my name is Vladimir but girls call me vladou.. it's a little bit gay when guys call me like that ) Link to comment Share on other sites More sharing options...
Ventsi Posted December 9, 2009 Share Posted December 9, 2009 Another Slavic fellow? from where if I may ask? And I'd go with the atom. Al, it should give you the longest lasting effect. Link to comment Share on other sites More sharing options...
vladou Posted December 10, 2009 Author Share Posted December 10, 2009 Ok, thank's for your advice. (No, I'm from Switzerland, I speak french ) Link to comment Share on other sites More sharing options...
davis050594 Posted November 13, 2010 Share Posted November 13, 2010 Alright, I realize I am raising this thread from the dead here, but I have a question. I have everything needed to make a farfelle shell, except for the tubes. What size of tube should I use for a 3" canister shell filled with farfelle inserts? I don't have any 4" mortars at the time so making a bigger shell isn't really an option. I made a small batch of the meal and ti comp, It worked like a charm. Link to comment Share on other sites More sharing options...
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