Dip the dried igniter in clear nail polish. That will harden the surface but will not harm the igniter.
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18 years ago
protecting igniters
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18 years ago
I do not know what went wrong, but no pyrogen I've used has done that.
Dean
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18 years ago
Thanks for the suggestion! I'll have to try that.
Tom Sak
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18 years ago
What was the temperature? In order for the mixture to dry properly, the binder (usually nitrocellulose) must dissolve in the acetone. If the temperature is lower than 90 degrees, it can take many hours for the nitrocellulose to dissolve. If you dip the igniters before the binder is dissolved, the nitrocellulous will remain powdery, rather than forming a smoothe kind of glue/binder.