Talk Composites - The Forum for Advanced Composites

Air/resin bubble issues.

http://www.talkcomposites.com/Topic33314.aspx

By bond007 - 7/16/2019 5:58:44 PM

Howdy,
I am working with a group of US veterans teaching them composite prepreg layup techniques and am having problems with what are either air bubbles or resin bubbles. Here is a pic. under a 10x300x microscope:
Any suggestions as to what is wrong?
By bond007 - 7/18/2019 8:07:12 PM

 
scottracing - 7/18/2019 9:14:11 AM
is this after cure? If so what was the process involved, autoclave OOA and was there sufficient vacuum of the bag during cure?

Yes post cure. OOA method with 5 hr. soak. Vacuum -29Hg. Used just release ply over piece, breather off to side on port per manu. rec.