Hi
I have used thick PVA as a binder for a friction ignition composition. I found that this gave a good solid and smooth plug of comp that didn't crumble or crack when scratched. More importantly though the reason I used PVA in the first place was to modify the burn rate from a sharp crack to a controlled burn like that of a match head. Having not experimented with PVA as a binder for anything else I am unsure of how it would affect burn rate or how well it would actually bind a star comp bearing in mind that I used it at quite a high percentage in the comp.
Regards
Rich
Dextrin
Started by pyrodude, Jan 12 2004 10:20 PM
31 replies to this topic
#32
Zinginex
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Posted 10 February 2007 - 04:49 PM
Hi
I have used thick PVA as a binder for a friction ignition composition. I found that this gave a good solid and smooth plug of comp that didn't crumble or crack when scratched. More importantly though the reason I used PVA in the first place was to modify the burn rate from a sharp crack to a controlled burn like that of a match head. Having not experimented with PVA as a binder for anything else I am unsure of how it would affect burn rate or how well it would actually bind a star comp bearing in mind that I used it at quite a high percentage in the comp.
Regards
Rich
oh ok thanks very much richard
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