37 replies to this topic

[Neway]

Hello, I'm trying to make rolled buell red stars, but I read around that they are very difficult to light. What prime I have to use, and how thick must be the primer layer?

Thanks!

[pyrotrev]

Hello, I'm trying to make rolled buell red stars, but I read around that they are very difficult to light. What prime I have to use, and how thick must be the primer layer?

Thanks!

I've never made Buell red, but I've never found anything that a mm or so of BP/KNO3/silicon powder won't light

[maxman]

They're not as hard to light as Veline. If you're using them in a big mine, such as the 3" of mine on youtube meal will work but for a shell then step prime with 50/50 star mix / meal then just meal.

[dr thrust]

hi can anybody post the " buell red" composition , thanks chris.

[johndee]

Buell Red

Potassium Perchlorate 35
Strontium Carbonate 25
Magnalium 14
Parlon 13
Red gum 7
Dextrin 6

[maxman]

In Action Here

[dr thrust]

many thanks, wow thats one bright red , hmm.... has he any more star comps? if so.. well you know give us a peek, ive not seen his work before, ta chris

Edited by chris m, 13 March 2008 - 08:00 PM.

[Neway]

Do you think I can substitute parlon with PVC?

[pudi.dk]

Buell Red

Potassium Perchlorate 35
Strontium Carbonate 25
Magnalium 14
Parlon 13
Red gum 7
Dextrin 6

According to passfire, there is 5 parts of dextrin. Don't know which one is the exact.
Guess it won't make too much of a difference, though

Edited by pudi.dk, 16 March 2008 - 12:52 AM.

[dr thrust]

ho, well lets hope not ive just made a batch of 200 cut stars and at the risk of sounding dumb, who is buell anyway? and can the strontium carb be swapped for barium carb for a green?

Edited by chris m, 16 March 2008 - 11:22 AM.

[maxman]

ho, well lets hope not ive just made a batch of 200 cut stars and at the risk of sounding dumb, who is buell anyway? and can the strontium carb be swapped for barium carb for a green?

Thats what I would like to know. I guess that its more involved than just a straight swap. Do greens need a higher temp flame? I saw This comp by H.W.W whoever that is. Its similar. I think I might try that one. As I understand it, a really good green needs either barium chlorate, nitrate or amonium perchlorate. So I expect it will be washed out and hard to light

[MDH]

Green and Blue both actually need lower tempature flames.

I imagine a star made out of potassium chlorate, copper benzoate and saran would make a nice blue...

[dr thrust]

hmm your'e right on blues, but i have to disagree on greens, so far all the metallic fueled greens i have tried have"wiped the floor"against organic fueled greens, on blues the metallic fueled veline is rubbish, with the organic conkling blue slighty better

Edited by chris m, 23 March 2008 - 10:49 AM.

[pyrotrev]

hmm your'e right on blues, but i have to disagree on greens, so far all the metallic fueled greens i have tried have"wiped the floor"against organic fueled greens, on blues the metallic fueled veline is rubbish, with the organic conkling blue slighty better

My (limited) experience with greens suggests the most important thing is the oxidiser: mixtures that have barium nitrate and pot. perchlorate are always a bit pale compared
to those using barium chlorate or some AP oxidised mixtures.

[dr thrust]

wouldn't even dream of using barium chlorate, i know of an incident where this used in a green star comp blew an house apart, very sensitive stuff

Edited by chris m, 24 March 2008 - 01:21 AM.