Pyrotechnic glue for electric igniters

[THEONE]

Do you guys know what glue can i use to glue BP for an electric igniter ?

[spectra1]

Try a simple NC lacquer with some fine BP mixed in

[THEONE]

At what % ? NC tends to crack i guess i should have to add smthing to become pore flexible. Edited June 19, 2019 by THEONE

[spectra1]

I don't really know the %. About the consistency of syrup works well. Never had a problem with cracking. Post a pic of the ignitors as a reference

[THEONE]

I cant right now, but for me even NC itself is also cracking. Should dextrin work ?

Edited June 19, 2019 by THEONE

[spectra1]

What are you using to make the nc?

I don't think dextrin would work well but you could give it a shot

[THEONE]

Smokeless powder with acetone

[Mumbles]

For bridgewire ignitors, water based binders would tend to corrode the nichrome. You would probably want use something organic based. NC lacquer as has been mentioned is most common. You could try phenolic perhaps too.

 

The cracking might be due to the acetone being wet and promoting the corrosion I mentioned.

[THEONE]

I mean, the composition with NC it is very brittle and it cracks easily. It doesn't hold very well. BTW how much % Smokeless powder you suggest into BP to make a dip ?

[BetICouldMake1]

If your dip is that brittle you probably aren't using enough NC. You could (forgive the shameless self promotion) use one of these https://www.amateurpyro.com/forums/topic/13288-e-match-dip-kits/

 

With the conductive kit you don't even need to mess with a bridge wire.

[THEONE]

It is not only the final result but the accomplishment for me too to achieve my goal.

 

I will try some more mixtures with BP and varius % NC to see what it will be better

Edited June 22, 2019 by THEONE

[BetICouldMake1]

I hear that. Good luck with your experiments.

[THEONE]

Thanks

[Igor]

Hello everyone I need pyrotechnics glue for electric igniters pls