Fin Vacuum Bagging Process by rharshberger

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rharshberger

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I dont know, I have used perf film and peel ply both, I prefer peel ply especially on compound curves.
 

watheyak

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I have used 3M77 spray adhesive as well as Fiber-Tac, which is supposed to be formulated to not interfere. In the past I've had great results but a recent delamination has made me nervous.

IMG-1478.JPG


There was a lot going on that could have caused this. Mach 2.7 with Aeropoxy and unprotected leading edges to name a few. But This was all stuck down with the Fiber-Tac beforehand. I can basically peel the rest of that off by hand. I don't think I got very good adhesion.
 

rharshberger

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I have used 3M77 spray adhesive as well as Fiber-Tac, which is supposed to be formulated to not interfere. In the past I've had great results but a recent delamination has made me nervous.

View attachment 423552

There was a lot going on that could have caused this. Mach 2.7 with Aeropoxy and unprotected leading edges to name a few. But This was all stuck down with the Fiber-Tac beforehand. I can basically peel the rest of that off by hand. I don't think I got very good adhesion.
I think you about covered it, I dont know what to say.
 

Greg Furtman

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I have used 3M77 spray adhesive as well as Fiber-Tac, which is supposed to be formulated to not interfere. In the past I've had great results but a recent delamination has made me nervous.

View attachment 423552

There was a lot going on that could have caused this. Mach 2.7 with Aeropoxy and unprotected leading edges to name a few. But This was all stuck down with the Fiber-Tac beforehand. I can basically peel the rest of that off by hand. I don't think I got very good adhesion.
The link I posted for 3M 71 does say it specifically made to work for composite work.
 
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