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Willow HELP!


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Posted

I am looking for a good comp for the willow star. The one Im talking about is the star that hangs for a while and looks like an umbrella or weeping willow tree. I have KNO3 for oxidizer so that would be great if it contained that....Thanks

 

Scott

Posted

Here is a classic comp by Shimizu:

 

Potassium nitrate 35

Sulphur 12

Charcoal (pine) 45

Rice starch or Dextrin 8

 

Common willow stars are based on KNO3 in almost every case. There are a lot of formulas; some of them also employ lampblack. Note that special mixing techniques (milling, wet methods) may be necessary to give the optimum result. Brocade willow shells too are very popular today, but the formulas contain expensive metals such as titanium or ferrotitanium. However, the effect is among the best.

Posted (edited)
I am looking for a good comp for the willow star. The one Im talking about is the star that hangs for a while and looks like an umbrella or weeping willow tree. I have KNO3 for oxidizer so that would be great if it contained that....Thanks

 

Scott

 

Yup, that's the ticket!

 

45 Parts pine airfloat charcoal

35 parts KNO3

12 parts sulfur

8 parts sgrs

 

Ball-mill thoroughly

Edited by dagabu
Posted

Also, for some more in-depth discussion on willows you should be able to find some good material on rec.pyro. Particularly posts from John Reilly... I'm sure there is also some more detailed discussion on here. The devil is in the details with these kind of compositions, ie processing/binders/milling times etc...

 

Good luck!

Posted

Look for the comp "slow gold" Buell I think. I've seen it done well once but I have two formulae for it so which one ....

This uses Ti sponge if you have acces to it, and it needs specific mesh cuts of specific charcoals. As with most recipies the detail of the process is crucial.

Posted (edited)
Look for the comp "slow gold" Buell I think. I've seen it done well once but I have two formulae for it so which one ....

This uses Ti sponge if you have acces to it, and it needs specific mesh cuts of specific charcoals. As with most recipies the detail of the process is crucial.

 

There are a lot of different ones but I think that you will find this the easiest one to start with. You will need to prime it with meal but its about the best out there.

 

The others are:

 

Charcoal Streamer

Chrysanthemum #6

Chrysanthemum #8

Chrysanthemum of Mystery

Degn, Spider Web

Gold Streamer

Lampblack Willow

Shimizu Firefly #5

Skylighter Firefly

Slow Gold

Tiger Tail

Edited by dagabu
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