Polyurethane glue

[Richtee]

A theory:

Substitute poly in a 1-1 ratio for red gum. Testing on blue stars

 

From Cannonfuse site..

Blue star #3

Source:

Comments:

Preparation: Mix red gum or shellac powder with Parlon. Add 50 volume parts of acetone, mix well and mix in the other ingredients.

potassium perchlorate.............................63

copper(II)oxide...................................13

Red gum or Shellac (powdered).....................10

Parlon or PVC.....................................14

Seems to work. Light blue...

 

THANKS Jacob!

 

Hmm lotta ash.... suggestions?

Edited September 2, 2008 by Richtee

[Richtee]

A theory:

Substitute poly in a 1-1 ratio for red gum. Testing on blue stars

 

Due to the spray adhesive <5 min from fill to launch>, and a BP prime on the above WOOHOO! I GOT BLUE!

[Arthur]

http://www.apcforum.net/forums/index.php?s...c=1313&st=0

 

http://www.pyrosociety.org.uk/forum/index....=3589&st=15

 

May both add something to the discussion.

[Yafmot]

Photon Junkie, Thanks for clearing up the particulars of the "Gorilla Glue" mechanism. That's very similar to the "five minute epoxy" systems, except that they just use a little more catalyst instead of water.

 

When you said that super glue uses Methyl Methacrylate as a base, didn't you mean Cyanoacrylates? The Methyl Methacrylate adhesives I've seen have very different properties from the Cyanoacrylates I've been exposed to. I"m talking about aircraft structural grades here, so maybe the commercial stuff is a bit different. The Methyl Methacrylate adhesives Ive seen used were bonding things like trailer floor and wall panels to structural beams, or for bonding aircraft interior components. The cyanoacrylates were used for assembling metal to composites on helicopter rotor blades and similarly loaded components. And properly utilized, and with a little imagination, can make for quite a weapon!

 

As for Jacob's white star, I hereby second your suggestion of a Chlorine donor. This brings us to Richtee's light blue star. I would suggest not only more CuO, but more donor. Better yet, switch from PVC/Parlon to Hexachloroethane. This has probably the highest Chlorine content of any practical additive.

 

And going clear back to the beginning of the thread, Swede was surprised at how bright the flame of just the glue and KCLO4 was. And then a post or two later, someone mentioned a paper that stated Cyanide, or at least HCN, burns with a very bright flame. If you're going for a blue or green flame, and you want to brighten it a bit, why not try some zinc? I've seen it produce a bluish flame, so it seems like it may be a better starting point for blue or green than Al, Mg etc. Magnesium tends to wash out just about any color, and Zr will give you any color you want, as long as you want white.