Please...don't use the terms "explosion" and "detonation" when describing the ejection charge. Two reasons: (A) they give the wrong impression to the reader, and (B) both are incorrect.I'm not sure if there's a difference between the fumes and cloud of bits thrown away from the explosion, scientifically speaking....
But the electronics should be completely sealed from any detonation.
I ruined an altimeter by not sealing the small gap between wires and the small hole they passed through. I believe it's the barometric sensors that are particularly vulnerable.
I always use a nomex chute protector when using a JLCU. Both the chute and JLCU are then protected. A decent amount of Estes/Quest wadding should also be sufficient.JLCU's are exposed by designe. Other than a piston rocket like PML's what to do if anything? Perhaps for some reason it is not required. Thanks. Anybody?
The case on a JLCR is around all of the circuits. But there are definitely external buttons and I don’t know if the components are potted. I don’t think they are. The directions, I believe, say to avoid direct exposure to ejection gasses.