The nicest red stars

[Potassiumchlorate]

I think English isn't his native language. There are people here who do have English as their native language and spell worse.

 

With just strontium nitrate, magnesium and PVC or parlon, it should be something like this anyway:

 

Strontium nitrate 53-55

Magnesium 28-31

PVC and/or parlon 15-17

 

Bleser Red Mg contains both PVC and parlon.

[AirCowPeacock]

I suspected that he may not have english as his 1st language, but if he does--then I don't know if he should be doing pyro.

 

I see the use of both PVC and Parlon together alot, what is the advantage there?

[Potassiumchlorate]

I see the use of both PVC and Parlon together alot, what is the advantage there?

 

Probably to adjust the burn rate.

[FlaMtnBkr]

You can tell English isn't his first language by the use of "estrontium". Plus a simple search shows he mentions where he is from quite a bit. Brazil. He has also explained the use of volume based measurements. He owns a company that makes pyrotechnic metal powders. Many people don't have scales so they adjust the formulas until they can be reproduced by volume using the type/ grind/ cut of metal that he sells. Guess that is the down side of liking pyro in a third world country.

[AirCowPeacock]

I have thought about finding the density of my chemicals so I can use volume mesurements. It does seems as though it could save some time. However due to concerns of density change, caking, packing, ect. and the PITA it would be to find the density of all my chemicals everytime I order new ones--I have not tried it.

[Potassiumchlorate]

For zinkit you use the same volumes of both.

 

According to Weingart, the Chinese used these volumes for BP for firecrackers:

 

Potassium nitrate 50

Charcoal 25

Sulfur 25

 

Compare with Roger Bacons compositions from the 13th century and bear in mind that they used more charcoal and sulfur in their BP back then:

 

Potassium nitrate 41

Charcoal 29.5

Sulfur 29.5

 

and

 

Potassium nitrate 37.5

Charcoal 31.25

Sulfur 31.25

[fckiamdead]

Just did some test.

 

It was already dark outside and I lit the stars with a lighter, so I was blinded every time

 

Buell was much faster then Independence, wich burned very nice and slow, perfect.

On the other hand Buell was much easier to ignite.

 

Is it normal that Independence Red leaves behind a massive grey skeleton?

I guess that whould be some nasty kind of fallout, very hot and glowing for some time afterwards...

 

 

 

Are you sure?

 

BUMP

 

Here is some independence stars in action, slightly primed whit only meal powder. (About 5mm cut stars, bound whit acetone)

*Notice that i changed the MgAl mesh to a much finer sort.

 

You can see the red better against the tree and how bright they are against the sky. (The camera didn´t pick it up whit the backlight of the sky)

 

 

Independence Red

 

Strontium nitrate 50

 

MgAl deep black -1250 mesh 18

 

Parlon 16

 

Red gum 10

 

Edited September 7, 2017 by fckiamdead

[zan89]

Independence red is very nice inded, but there is a problem when making cilinder stars, they start crack and get fragile after drying. I dont have that problem with round, only with cilinder.

[fckiamdead]

Independence red is very nice inded, but there is a problem when making cilinder stars, they start crack and get fragile after drying. I dont have that problem with round, only with cilinder.

Do you bind whit water or acetone?

[ExplosiveCoek]

If you use water, or don't force dry them and store them well, they can start to swell due to the Sr(NO3)2

Edited September 13, 2017 by ExplosiveCoek

[OldMarine]

Independence Red works well with phenolic resin in place of the red gum at 83%. This makes them rock hard in a couple of hours and almost impervious to moisture uptake. I use monocapa with alcohol as the wetting agent to prime so get great adhesion. I still have a few pounds of the prime with red gum but will swap it for resin when it runs out but it still works well with the resin bound stars.