Kevlar protection tube

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Woody's Workshop

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Several of the builds I'm finishing up that I started 5 years ago before I lost my house... I tied Kevlar around the engine mount.
With the intention of putting a swivel at the end below the end of the air frame, and using elastic above that to the nose cone on a snap swivel.
I am wondering how long the Kevlar will last before it's charred, gets brittle and breaks.
I was thinking of using some 1/8" launch lug tube glued to the inside of the air frame to run the Kevlar threw.
I've got 12" long sections, probably from Semroc before Randy bought Semroc, that I was thinking on using.
Not sure how fire proof it is, but I could always coat it a few times with wood glue before mounting it inside the air frame.
Any one try this before?
Any and all thoughts on this are appreciated.
 
I would think unless Kevlar is abused or under high heat/UV conditions it would be stable for many, many years. Probably best to contact manufacture and see about shelf life.


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No need to protect the Kevlar. I have some 1/8" tubular that I have used for 10-11 years, and I decided to replace it then. Not for any other reason than I was doing it for another rocket.
 
Several of the builds I'm finishing up that I started 5 years ago before I lost my house... I tied Kevlar around the engine mount.
With the intention of putting a swivel at the end below the end of the air frame, and using elastic above that to the nose cone on a snap swivel.
I am wondering how long the Kevlar will last before it's charred, gets brittle and breaks.
I was thinking of using some 1/8" launch lug tube glued to the inside of the air frame to run the Kevlar threw.
I've got 12" long sections, probably from Semroc before Randy bought Semroc, that I was thinking on using.
Not sure how fire proof it is, but I could always coat it a few times with wood glue before mounting it inside the air frame.
Any one try this before?
Any and all thoughts on this are appreciated.

Actually sounds like a great idea, but I would probably use something like epoxy or JB Weld if I were to coat it, or spray the inside with that grill paint perhaps? Never tried it before, but I hear it works well.
 
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