laser200 Posted September 3, 2009 Posted September 3, 2009 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
AdmiralDonSnider Posted September 3, 2009 Posted September 3, 2009 Here is a classic comp by Shimizu: Potassium nitrate 35Sulphur 12Charcoal (pine) 45Rice 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.
optimus Posted September 3, 2009 Posted September 3, 2009 Try here for a starter: http://www.thegreenman.me.uk/pfp/stars.htm...l%20fire%20dust
dagabu Posted September 3, 2009 Posted September 3, 2009 (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 charcoal35 parts KNO312 parts sulfur8 parts sgrs Ball-mill thoroughly Edited September 3, 2009 by dagabu
optimus Posted September 3, 2009 Posted September 3, 2009 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!
Arthur Posted September 3, 2009 Posted September 3, 2009 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.
dagabu Posted September 3, 2009 Posted September 3, 2009 (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 September 3, 2009 by dagabu
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